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Color balance (e.g., white balance)

Subclass of:

348 - Television

348207990 - CAMERA, SYSTEM AND DETAIL

348222100 - Combined image signal generator and general image signal processing

Patent class list (only not empty are listed)

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Class / Patent application numberDescriptionNumber of patent applications / Date published
348224100 Dependent upon operation or characteristic of iris, flash, lens, or filter) 36
348225100 With means for preventing colored object from effecting color balance 2
20100026837IMAGE PROCESSING METHOD, IMAGE PROCESSING PROGRAM, IMAGE PROCESSING DEVICE AND CAMERA - An image processing method for executing color conversion processing on input image data by taking into consideration chromatic adaptation so as to match a color appearance perceived under a first viewing condition and a color appearance perceived under a second viewing condition, includes: executing the color conversion processing by setting in correspondence to each of parameters representing colors, at least one of an adaptation factor indicating an extent of adaptation to the first viewing condition and an adaptation factor indicating an extent of adaptation to the second viewing condition.02-04-2010
20080259180Methods, systems and apparatuses for high-quality green imbalance compensation in images - Methods, systems and apparatuses for determining and compensating for green imbalance in imagers. An estimated local green balance correction term is limited, e.g., between an upper and lower limit. The upper and lower limits are determined from a set of parameters. The parameters are determined during a calibration procedure. The parameters may be stored for a subset of possible pixel locations and parameters for each pixel not at a location corresponding to stored data may be determined by interpolation10-23-2008
Entries
DocumentTitleDate
20130083216APPARATUS AND METHOD FOR AUTOMATIC WHITE BALANCE WITH SUPPLEMENTARY SENSORS - An apparatus and method for An image capture device for Automatic White Balance (AWB) are provided. The device includes a camera for capturing an image, a primary sensor for sensing environmental conditions of the image capture device and for generating data regarding the environmental conditions, a plurality of supplementary sensors for sensing the environmental conditions of the image capture device and for generating supplementary data regarding the environmental conditions, an AWB unit for performing an AWB operation on the captured image according to the generated data and the generated supplementary data, and a controller for controlling the camera, the primary sensor, the plurality of supplementary sensors and the AWB unit.04-04-2013
20100165143METHOD AND APPARATUS FOR CONTROLLING A CAMERA MODULE TO COMPENSATE FOR THE COLOR SPECTRUM OF A WHITE LED - A method and an apparatus enabling use of a light source emitting a spectrum of light not following characteristics of a blackbody source of light with a camera module programmed for use with light sources following characteristics of blackbody sources of light, wherein a white-balance patch is transmitted to the camera module to cause the camera module to accept color coordinates representing a point on a chromaticity chart that partly defines a region of color coordinates on the chromaticity chart into which color coordinates of the light source fall and to which color coordinates of a reference white color derived by a white-balance routine of the camera module are constrained.07-01-2010
20110181752IMAGING ELEMENT AND IMAGING DEVICE - A signal processing portion is adapted to perform first signal processing appropriate for extracting luminance components and color components from first picture signals mainly containing signal components corresponding to the visible-light region, and second signal processing appropriate for extracting luminance components and color components from second picture signals mainly containing signal components corresponding to the near-infrared region, by changing over therebetween, when extracting luminance components and color components from picture signals which an imaging element outputs, in response to reception light.07-28-2011
20110205391IMAGE SENSING APPARATUS AND IMAGE PROCESSING METHOD - An image sensing apparatus that senses objects and processes image signals obtained from such image sensing includes a white balance correction means that performs white balance correction of the image signals using white balance correction values calculated based on a face area and on other areas contained in the image signals, and a CPU that changes the proportion of image signals of the face area used in calculating the white balance correction values when calculating the white balance correction values based on the image signals.08-25-2011
20110205389Methods and Systems for Automatic White Balance - A method for calibrating automatic white balance (AWB) in a digital system is provided that includes capturing an image of a test target under a natural lighting condition, generating a first color temperature reference from the captured image, and outputting AWB configuration data for the digital system, wherein the AWB configuration data comprises the first color temperature reference and a second color temperature reference generated using the test target under simulated lighting conditions. A method for calibrating automatic white balance (AWB) in a digital system comprising a first imaging sensor is provided that includes receiving a reference for AWB that was generated using an image captured using a second imaging sensor, and compensating a histogram reference into a histogram reference for AWB for the first imaging sensor in the digital system based on R, G, B adjustment values from the second imaging sensor to the first imaging sensor.08-25-2011
20130044236Method and Apparatus of Correcting Hybrid Flash Artifacts in Digital Images - A method for digital image eye artifact detection and correction include identifying one or more candidate red-eye defect regions in an acquired image. For one or more candidate red-eye regions, a seed pixels and/or a region of pixels having a high intensity value in the vicinity of the candidate red-eye region is identified. The shape, roundness or other eye-related characteristic of a combined hybrid region including the candidate red-eye region and the region of high intensity pixels is analyzed. Based on the analysis of the eye-related characteristic of the combined hybrid region, it is determined whether to apply flash artifact correction, including red eye correction of the candidate red-eye region and/or correction of the region of high intensity pixels.02-21-2013
20090195670Image processing device, image processing method and program product - An image processing device that reproduces under a second observation condition an appearance of a color of a subject as perceived under a first observation condition, includes: a characteristic quantity calculation unit that calculates a characteristic quantity related to a state of visual perception adaptation under an observation condition that is at least one observation condition of the first observation condition and the second observation condition, by taking into consideration information related to an illuminating light source used under another observation condition in addition to information related to an illuminating light source used under the one observation condition; and a color conversion unit that executes color conversion to convert the first image data to second image data to be used to reproduce, under the second observation condition, the appearance of the color of the subject as perceived under the first observation condition, based upon the characteristic quantity having been calculated.08-06-2009
20100073511IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - At least one exemplary embodiment is directed to an image processing apparatus that generates control information related to the generation of image data executed in shooting processing, and generates component information of a special effect, for example, such as a film grain, based on the control information.03-25-2010
20100073510IMAGING APPARATUS, IMAGE PROCESSING APPARATUS, AND EXPOSURE CONTROL METHOD - An imaging apparatus includes an imaging unit configured to capture an image of an object to obtain an image signal, a detection unit configured to set a detection area in a captured image based on the image signal obtained by the imaging unit and calculate a detection value from an image signal in the detection area, an exposure adjustment unit configured to perform exposure adjustment, a control unit configured to control the exposure adjustment unit so that the detection value becomes equal to a predetermined value, and a presentation-image detecting unit configured to detect a presentation image presented by an image presentation device from the captured image on the basis of a difference in luminance in the captured image. When the presentation-image detecting unit detects the presentation image, the detection unit sets the detection area in a location different from a location of the detected presentation image.03-25-2010
20130038753IMAGING APPARATUS - An imaging apparatus includes an imaging unit to acquire image data, an integration unit to calculate a white balance integration value, a first calculation unit to calculate a still image white balance control value, a second calculation unit to calculate a histogram white balance control value, and a histogram processing unit. The second calculation unit calculates the histogram white balance control value by converting a white balance control value which is used in white balance processing on the image data acquired by the imaging unit in an electronic view finder (EVF) mode to the still image white balance control value, and the histogram processing unit adjusts color balance of the image data acquired by the imaging unit using the calculated histogram white balance control value and performs the histogram processing in parallel with calculation of the white balance integration value.02-14-2013
20130038752DIGITAL PHOTOGRAPHING APPARATUS AND METHOD OF CONTROLLING THE SAME FOR SETTING A WHITE BALANCE - A digital photographing apparatus and method of using the digital photographing apparatus that can manually set a white balance gain. The digital photographing apparatus including a light-emitting device configured to emit light of a plurality of colors; a light-emitting device control unit configured to control light emission of the light-emitting device; an imaging device configured to capture light incident to a subject to generate a plurality of image signals; and a gain setting unit configured to set a white balance gain by using the generated image signals.02-14-2013
20130076937IMAGE PROCESSING APPARATUS AND METHOD THEREOF, AND IMAGE CAPTURE APPARATUS - An image capture apparatus generating an image, a dynamic range of which is expanded by composing two images having different exposure amounts, includes an imaging unit which continuously outputs images captured to have two different exposure amounts. A system control unit of the image capture apparatus stores in a memory an image of the first frame of two frames to be composed, which are continuously output from the imaging unit, and composes an image of the second frame output from the imaging unit and the image held in the memory so as to expand a dynamic range. The system control unit generates tone compression characteristics based on the image held in the memory and an image obtained by reducing a resolution of the held image, and compresses tones of the composed image using the generated tone compression characteristics.03-28-2013
20100103280IMAGING APPARATUS AND IMAGING OPERATION PROCESSING METHOD - An imaging apparatus includes: an imaging portion that obtains an imaging video signal; an enlargement processing portion that extracts a partial range from a picture frame range of the imaging video signal and applies video enlargement processing; a first detection portion that obtains a detection value for an automatic processing capability of a first type using the picture frame range before enlargement as a subject; a second detection portion that obtains a detection value for an automatic processing capability of a second type using a picture frame range of the imaging video signal after enlargement by the enlargement processing portion as the subject; a control portion that controls operations of the automatic processing capabilities of the first and second types according to the detection values; and one or plural processing portions that execute the automatic processing capabilities of the first and second types under control of the control portion.04-29-2010
20090153696Chromatic aberration correction apparatus, image pickup apparatus, chromatic aberration amount calculation method, and chromatic aberration amount calculation program - The invention relates to a chromatic aberration correction apparatus. A judgment unit judges whether a selected pixel of interest is a white overexposure pixel or not on the basis of white overexposure pixel distribution information that is held in a white overexposure distribution information memory. A white overexposure pixel judgment is made for each of pixels that make up an image. A reader reads, for each selected pixel of interest that is judged as a white overexposure pixel by the judgment unit, chromatic aberration amount distribution information for a certain area that is determined on the basis of the selected pixel of interest out of a chromatic aberration distribution information memory. An adder adds each chromatic aberration amount contained in the chromatic aberration amount distribution information that is read by the reader to a value of the corresponding position in the storage area of a chromatic aberration amount memory.06-18-2009
20100110224ELECTRONIC CAMERA - Disclosed herein is an electronic camera for generating an image having a wide dynamic range by synthesizing two image pickup signals of different exposure amount generated by using an electronic shutter function and means for shutting off light, shading of image pickup signals resulting from difference in charge accumulating time among the pixels of image pickup device due to operation from opened state to closed state of the means for shutting off light being corrected by a shading correction means to form a synthesized image without an occurrence of false color due to shading. Also provided is an electronic camera generating two image pickup signals of different exposure amount by two shots of picture taking each using a flash emission in combination, at least one of an electronic shutter of image pickup device and means for shutting off light, as well as an emission of the flash emission means, being controlled to equalize between the two shots of picture taking ratio of exposure by normal light excluding light from the flash emission means and ratio of emission amount by the light from the flash emission means so that the two image pickup signals can be readily generated as having a predetermined exposure amount ratio in every part of a frame of picture even when a flash emission is used in combination.05-06-2010
20100110223HEAD SEPARATED CAMERA AND CAMERA HEAD - A camera head (05-06-2010
20120182444IMAGE CAPTURE APPARATUS AND CONTROL METHOD FOR THE IMAGE CAPTURE APPARATUS - An image capture apparatus compares a first pixel value and a second pixel value at the same address of two images captured by continuous shooting with a predetermined threshold, and, when at least one of the first pixel value and the second pixel value exceeds the predetermined threshold, updates the second pixel value with a not smaller one of the first pixel value and the second pixel value. After repeating updating of the image data for a plurality of image planes, the image capture apparatus generates a combined image data using the image data in a memory.07-19-2012
20110001841IMAGING APPARATUS AND IMAGING METHOD - An imaging apparatus and an imaging method which can obtain an image in which a dynamic range is expanded at one shooting are provided. In a case where a pixel output of a pixel where a specific color separation filter is placed is equal to or more than a predetermined saturation level, based on a pixel output of a pixel which is placed in the vicinity of the pixel where the specific color separation filter is placed, a pixel output for brightness, where the pixel output becomes equal to or more than the predetermined saturation level, of the pixel where the color separation filter of the specific color is placed and the pixel output is equal to or more than the predetermined saturation level is compensated, and thereby a dynamic range of an image sensor is expanded.01-06-2011
20130088613IMAGE PROCESSING APPARATUS AND IMAGE PICKUP APPARATUS - A determining unit determines which one of a plurality of divided areas in color distribution a value of an input image single falls within. The plurality of divided areas are defined for each of R, G, and B color components, and the determining unit determines, for each color component, which one of the plurality of divided areas the value of the input image signal falls within. An image correcting unit reads correction coefficients corresponding to the determined divided area for each color component from a correction coefficient storing unit in which correction coefficients are registered for each of the color components and each of the divided areas. The image correcting unit calculates each of R, G, and B output values of an output image signal using the correction coefficients of the individual color components read from the correction coefficient storing unit.04-11-2013
20130088614MOBILE TERMINAL AND METHOD FOR GENERATING AN OUT-OF-FOCUS IMAGE - Provided are a mobile terminal and a method for generating an out-of-focus image, whereby a preview image and a depth map are displayed when an out-of-focus function of the mobile terminal is selected by a user, the displayed depth map is adjusted based on a specific object that is selected from the displayed preview image, an image is captured via a camera of the mobile terminal, and an out-of-focus image is generated by blurring the captured image according to the adjusted depth map.04-11-2013
20090303345DIGITAL STILL CAMERA AND IMAGE CORRECTION METHOD - To be capable of correcting a captured image to an image desirable to a user only by using a digital still camera.12-10-2009
20090303344RECORDING MIDIUM OF DIGITAL PHOTO FILE AND METHOD OF GENERATING DIGITAL PHOTO FILE - A recording medium of a digital photo file and a method of generating a digital photo file are presented. An electronic device generates several pieces of thumbnails with different uses according to a content of a photo data, and embeds the thumbnails in a single image file, thereby forming the digital photo file. The digital photo file is characterized in that several pieces of photo contents with different uses are included in the same file, for photo printing, computer photo editing, photo rapid previewing, and playing in an electronic apparatus with an excellent photo quality and browsing speed.12-10-2009
20130057724IMAGING ELEMENT AND IMAGING APPARATUS - An imaging element includes a red color filter, a blue color filter, and two kinds of first and second green color filters. The first green color filter has a peak spectral sensitivity in a longer wavelength region than a wavelength of a peak spectral sensitivity of the second green color filter.03-07-2013
20130057725IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - An image processing apparatus determines whether a second light source is present with respect to image data, generates, when it is determined that the second light source is present, first image data based on a first white balance correction value and second image data based on a second white balance correction value, and combines the first image data and the second image data according to a determined combination ratio.03-07-2013
20090040335WHITE BALANCE ADJUSTMENT DEVICE, IMAGE CAPTURE DEVICE, WHITE BALANCE ADJUSTMENT METHOD, STORAGE MEDIUM, AND INTEGRATED CIRCUIT - A natural white balance is achieved in images that are captured while emitting a flash. A WB adjustment portion is provided with a mixture ratio calculation portion that estimates a mixture ratio of an external light component and a flashed light component that are present in an image that is captured with emitting a flash, from the image obtained that is captured while emitting a flash and an image signal that is obtained without emitting a flash, an external light WB coefficient determination portion that determines an WB coefficient for the external light, a flashed light WB coefficient setting portion that sets a WB coefficient for the flashed light, and a WB processing portion that continuously performs WB processing on the image captured while emitting a flash by using the mixture ratio as an interpolation ratio.02-12-2009
20090040334IMAGE PICKUP APPARATUS, WHITE BALANCE CONTROL METHOD THEREOF, AND STORAGE MEDIUM - An image pickup apparatus capable of, when adjusting the white balance in development processing, eliminating the need for performing integration processing and calculation processing for white balance adjustment even when white balance is set to an arbitrary mode, thereby significantly reducing the processing time. In the image pickup apparatus, a calculation unit is adapted to, in a case where an integration parameter to be set in an integration unit is identical with or close to an integration parameter stored in a storage unit, calculate a white balance control value using a white balance integration value read out from the storage unit, without performing calculation processing using a white balance integration value acquired by an integration unit.02-12-2009
20090040333MEDICAL IMAGING APPARATUS - When a safety switch is ON in step S02-12-2009
20090040336IMAGE PICKUP APPARATUS AND METHOD - A digital still camera has a CCD image sensor, which includes an active pixel area for image pickup of an image to produce image data. A black pixel area is disposed outside the active pixel area, and produces black pixel data. The image pickup apparatus includes an amplifier for adjusting white balance of the image data. A smear detection unit detects a smeared portion of a smear phenomenon in the image according to the black pixel data. A tone correction unit reduces chroma of the image in a predetermined hue area according to a smear level of the smear phenomenon determined from the black pixel data, to carry out color correction of the smeared portion for the image data after adjusting the white balance.02-12-2009
20100103281AUTO-FOCUS TECHNIQUE IN AN IMAGE CAPTURE DEVICE - Multiple sets of pixel values representing a captured image of a scene are received, with each set representing an image captured with a corresponding degree of focus. An image processor may identify a region of interest in the captured image, automatically determine the configuration parameters for a lens assembly to provide a desired degree of focus for the region of interest, and generate signals to configure a lens assembly. In an embodiment, the region of interest is a face, the desired degree of focus of the face is determined by computing a rate of variation of luminance of pixels representing the face, and the desired degree is the degree of the image having the maximum degree of focus.04-29-2010
20110058063DIGITAL PHOTOGRAPHING APPARATUS, METHOD OF CONTROLLING THE SAME, AND RECORDING MEDIUM STORING PROGRAM TO EXECUTE THE METHOD - A digital photographing apparatus includes a manual white balance function for adjusting white balance according to a selected light source and a white balance bracketing function for capturing a plurality of images with a single shutter input, a method of controlling the same, and a recording medium storing a program to execute the method, wherein a user may adjust gains of white balance during generation of the plurality of images.03-10-2011
20130135494USER INTERFACE (UI) PROVIDING METHOD AND PHOTOGRAPHING APPARATUS USING THE SAME - A User Interface (UI) providing method and a photographing apparatus using the UI providing method are provided. The UI providing method includes capturing an image, calculating a “hand shake” value of the captured image by comparing the captured image with a pre-capture image corresponding to the captured image, and displaying a UI corresponding to the calculated “hand shake” value of the captured image along with the captured image. A user can decide whether to delete or edit a captured image based on “hand shake” information relating to the captured image.05-30-2013
20090268052IMAGE PICKUP APPARATUS AND CONTROL METHOD THEREOF - In an image pickup apparatus, image data obtained by an image pickup unit is subjected to predetermined image processing, and an image is displayed on an electronic viewfinder screen based on the image data that has undergone the image processing. A specified color is determined based on color information included in a predetermined region of an image that is currently being displayed on the electronic viewfinder screen, and image processing parameters are produced so that color conversion is carried out on the image while eliminating color components of colors other than the determined specified color.10-29-2009
20090268051Image processing apparatus, imaging apparatus, image processing method and program recording medium - A high luminance point detecting section of an image processing apparatus detects a high luminance point of the captured image. A chroma extracting section sets a first area in the captured image with the high luminance point serving as a reference point and extracts a first chroma by using color information of the first area. Further, the chroma extracting section sets a second area at a position more apart from the high luminance point than the first area in the captured image and extracts a second chroma by using color information of the second area. A color bleeding estimating section estimates intensity of color bleeding appearing in the captured image based on a value of the first chroma relative to the second chroma.10-29-2009
20100123793IMAGER FOR DETERMINING A MAIN SUBJECT - An imager for capturing an image is provided having a face detector, a mouth detector, a sound detector, and a subject detector. The face detector detects a face in an image. The mouth detector detects the state of a mouth that is on the face detected by the face detector. The sound detector detects the ambient sound of the imager. The subject detector determines which face is the main subject on the basis of the state of its mouth at the time that the sound detector detects ambient sound.05-20-2010
20130162862COLOR CORRECTION OF DIGITAL COLOR IMAGE - A software application corrects for luminance and/or color in a captured image on a device having two cameras. The first camera receives a reference image, and the second camera receives a target image. The device compares the reference image and a reference file retrieved from memory to identify one or more luminance or color differences, and it automatically actuates an optical adjustment element of the second imaging device in response to the differences. The second imaging device captures a target image, and the target image is stored in a computer-readable memory.06-27-2013
20090079846AUTO WHITE BALANCE SYSTEM FOR IMAGE SENSOR AND AUTO WHITE BALANCE METHOD - An exemplary auto white balance system for an image sensor includes a global positioning system (GPS) receiver, a memory, a setting determining unit, and a white balance unit. The GPS receiver is configured for receiving signals from a satellite, and calculating its position and local time using signals received from at least four satellites. The memory is configured for storing a number of white balance settings. The setting determining unit is configured for determining which one of the white balance settings is suitable for the current ambient light conditions based on the received signal of the global positioning system receiver. The whit balance unit is configured for adjusting the color temperature of a current image captured by the image sensor using the determined white balance setting.03-26-2009
20090009624Automatic white balance control system, automatic white balance module, and method thereof - The present invention discloses an automatic white balance control system, an automatic white balance module, and a method thereof. The automatic white balance (AWB) control system calculates a distance value from a coordinate related to the image to a reference point in a color space coordinate system for each image. If the median or mean of the distance values is greater than a threshold value, an automatic white balance operation will be performed. The system dynamically adjusts the threshold value to prevent a blinking caused by the automatic white balance. The white balance module selects an image block of a higher image sharpness to perform a gain adjustment to prevent a monochromatic block from misjudging a white balance gain.01-08-2009
20120113294CAMERA DEVICE, COLOR CALIBRATION METHOD, AND PROGRAM - A camera device (05-10-2012
20110019029IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND STORAGE MEDIUM THEREOF - An image processing apparatus, including: an image obtaining means that obtains an image; a color area detecting means that detects a predetermined color area from the image thus obtained by the image obtaining means; an area specifying means that specifies an area to be adjusted based on saturation and brightness of the color area thus detected by the color area detecting means; and a color adjusting means that adjusts at least one of a hue, the saturation and the brightness of a pixel in the process area thus specified by the area specifying means.01-27-2011
20130215288IMAGE CAPTURING APPARATUS PROVIDED WITH A FUNCTION OF COMBINING A PLURALITY OF CAPTURED IMAGES - The present invention provides a digital camera which can overlay a plurality of images in multiple exposure shooting without intermingling with each other. A digital camera includes an image sensor constituted by a color filter for a plurality of color components, an imaging unit configured to capture a subject image with the image sensor and output the image data, a comparison unit configured to compare first image data output from the imaging unit with second image data output from the imaging unit between image data in corresponding regions within a screen, and a selecting unit to output either the first image data or the second image data for each region according to a comparison result.08-22-2013
20130188074IMAGE PICKUP UNIT, COLOR CORRECTION METHOD, AND COLOR CORRECTION PROGRAM - An image pickup unit includes: an image pickup device outputting an image signal based on incident object light; a dimming device adjusting a light amount of object light incident to the image pickup device; a color correction section adjusting color balance of the image signal; and a control section controlling the color correction section to be switched from one of a first adjustment mode and a second adjustment mode to the other, the first adjustment mode automatically adjusting the color balance following variations in color temperature of a light source, the second adjustment mode adjusting the color balance without following variations in color temperature of the light source. The control section controls a light amount adjustment value by the dimming device at a fixed value, when the color correction section is switched to the second adjustment mode.07-25-2013
20120236173DIGITAL CAMERA USER INTERFACE WHICH ADAPTS TO ENVIRONMENTAL CONDITIONS - A digital camera having a user interface that automatically adapts to its environment, comprising: an image sensor for capturing a digital image; an optical system for forming an image of a scene onto the image sensor; one or more environmental sensors; a configurable user interface; a data processing system; a storage memory for storing captured images; and a program memory communicatively connected to the data processing system and storing instructions configured to cause the data processing system to implement a method for adaptively configuring the user interface. The stored instructions include: sensing one or more environmental attributes using the environmental sensors; automatically configuring at least one user control element of the user interface in response to the one or more sensed environmental attributes without any user intervention; capturing a digital image of a scene using the image sensor; and storing the captured digital image in the storage memory.09-20-2012
20130162863IMAGING APPARATUS AND EVALUATION VALUE GENERATION APPARATUS - An imaging apparatus and an evaluation value generation apparatus can include an image data interface unit that outputs image data according to a pixel signal input from a solid-state imaging device as first image data, an image data reading unit that reads image data stored in a storage unit and outputs the read image data as second image data, an evaluation value generation unit that generates an evaluation value based on input image data, an image data selection unit that selects one of image data based on the first image data and image data based on the second image data as image data to be input to the evaluation value generation unit, and an image data writing unit that stores the image data based on the first image data in the storage unit.06-27-2013
20110043657IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, PROGRAM, AND STORAGE MEDIUM FOR CORRECTING CHROMATIC ABERRATION - There is a problem in that when magnification chromatic aberration correction is carried out, the difference in reproducibility of high-frequency components, depending on the spatial position, between a color for which position shift correction is not performed and a color for which position shift correction is performed may influence the image quality of an output image. In order to perform magnification chromatic aberration correction, high-frequency components, which are lost due to the position shift correction of a color for which position shift correction is carried out, are extracted from a color for which position shift correction is not carried out, and are added to the color for which position shift correction is carried out. Therefore, the high-frequency components are restored in a pseudo manner.02-24-2011
20100020192METHOD OF CONTROLLING AUTO WHITE BALANCE - There is provided a method of controlling auto white balance that can be appropriately used for a camera of an electric device that uses a wide-angle or a super wide-angle lens. A method of controlling auto white balance according to an aspect of the invention may include: converting a color space of an input image from an RGB color space into a YCbCr color space; dividing the input image into a plurality of divided regions; selecting a predetermined number of divided regions in order determined by mean values of Y of pixels included in the plurality of divided regions; comparing a predetermined threshold value with the number of pixels having values of Cb and Cr within a predetermined Cb-Cr range among the pixels included in the selected divided regions in order to determine a white area; and calculating auto white balance gains by using mean values of Y, mean values of Cb, and mean values of Cr of the pixels included in each of the selected divided regions when the number of pixels within the predetermined Cb-Cr range is greater than the threshold value.01-28-2010
20110157410AUTO WHITE BALANCE ALGORITHM USING RGB PRODUCT MEASURE - A method and device is provided for adjusting the white balance of a digital image by adjusting the values assigned to the red, green, and blue subpixels of a pixel in the image. The adjustment to the subpixels is determined by identifying pixels in the image that have an RGB product greater than a threshold value, wherein the threshold value is based at least in part on an average of the RGB products of each pixel in the image and a variance between the RGB products of the pixels and the average of the RGB products.06-30-2011
20110279703APPARATUS AND METHOD FOR PROCESSING IMAGE BY USING CHARACTERISTIC OF LIGHT SOURCE - An apparatus and method for processing an image of an image signal projected through a digital camera lens are provided. The apparatus includes an image sensor module for transforming an optical signal into an electric signal, to generate and output an image signal, and a light receiving module for detecting a light source. The apparatus also includes a light source characteristic detector for detecting a frequency of the light source, a white balance controller for controlling a white balance, a color corrector for removing interferences of red, green, and blue channels, and a gamma corrector for performing a gamma correction. The apparatus further includes an auto color adjustment controller for identifying a kind of light source based on the frequency of the light source, and controlling a white balance gain of the image signal based on the kind of the light source.11-17-2011
20110279704SENSITIVITY-SETTABLE IMAGE CAPTURE APPARATUS - An image capture device includes an image pickup unit including a plurality of pixels and photoelectrically converting an object image by the plurality of pixels; a white balance control unit for performing a white balance correction processing on pixel signals from the image pickup unit; and a sensitivity changing unit for changing the sensitivity of photographing, wherein the white balance control unit performs the white balance correction processing such that, as the sensitivity increases, a response to the light source is suppressed.11-17-2011
20110279702Method and System for Providing a Programmable and Flexible Image Sensor Pipeline for Multiple Input Patterns - A method and system are provided in which color channel information may be stored in a multimedia processor. The color channel information may comprise information for each of the color filter positions in a color filter pattern. The color channel information may be stored in a plurality of registers, wherein each register may correspond to a color channel. The color channel information may be dynamically stored in the multimedia processor. Based on the color channel information, a color channel may be assigned to each color filter position. The color channel assigned to a color filter position may be one of red, green, blue, white, cyan, yellow, and/or magenta. When an indication of the color filter pattern is received, the assignment may be based on both the color channel information and the received indication. Pixel values associated with the color filter pattern may be processed based on the color channel assignment.11-17-2011
20090309995Automatic white balance using non-uniform averaging - The specification disclosed embodiments of an apparatus comprising an automatic white balance (AWB) circuit coupled to a pixel array to transform red, green, and blue color data obtained from each pixel into x and y chromaticity values for each pixel, determine a distance between the Planckian locus and the x and y chromaticity values for each pixel, determine a weight for each pixel based on the distance between its x and y chromaticity values and the Planckian locus, determine red, green, and blue adjustments for each pixel using its weight, and apply a white balance adjustment to the red, green and blue values obtained from each pixel. Other embodiments are also disclosed and claimed.12-17-2009
20090290043Sub-Pixel Array Optical Sensor - Improving the dynamic range of captured images is disclosed by using sub-pixel arrays to capture light at different exposures and generate color pixel outputs for an image in a single frame. Each sub-pixel array can include multiple sub-pixels. The sub-pixels that make up a sub-pixel array can include red (R) sub-pixels, green (G) sub-pixels, blue (B) sub-pixels, and in some embodiments, clear sub-pixels. Those sub-pixel arrays having clear sub-pixels effectively have a higher exposure level and can capture low-light scenes (for dark areas) better than those sub-pixel arrays without clear sub-pixels. Each sub-pixel array can produce a color pixel output that is a combination of the outputs of the sub-pixels in the sub-pixel array. Each sub-pixel in a sub-pixel array can have the same exposure time, or in some embodiments, individual sub-pixels within a sub-pixel array can have different exposure times to improve the overall dynamic range even more.11-26-2009
20100271503Digital Camera Module White Balance Calibration Method and Apparatus Using Only Single Illumination Source Data - A method includes determining white balance calibration color ratios for a plurality of illumination sources by using a representative camera of a given type to establish a set of ratios. Because the ratios are fixed for the given camera type, a plurality of cameras of the type may store the fixed ratios, and calibrate by measuring only the reference illumination source. Later white balancing is achieved by using the measured reference illumination source color ratios and the stored fixed ratios as scaling factors to map from the reference illumination source to any other illumination source. The method includes an off-line advance calibration procedure to obtain the fixed ratios, an on-line per camera calibration procedure to obtain color ratios for the reference source, and subsequent white balancing which uses the fixed ratios/scaling factors and the reference source color ratios.10-28-2010
20110298945COMPENSATION FOR BLACK LEVEL CHANGES - A technique for applying black level compensation to image data is provided. In one embodiment, an image processing system includes a first image processing pipeline configured to receive frames of image data generated by an image sensor and to alter the frames of image data to compensate for black level shift. The image processing system may also include a feed-forward loop having a second image processing pipeline configured to receive at least one of the frames of image data, to process the at least one frame, and to adjust a black level compensation parameter of the first image processing pipeline. Additional methods, systems, and devices relating to black level compensation are also disclosed.12-08-2011
20100194918Methods and Systems for Automatic White Balance - A method for calibrating automatic white balance (AWB) is provided that includes using a plurality of references for AWB that include color temperature references, wherein an AWB failure is detected in an image, generating a scene prototype reference based on the image, and adding the generated scene prototype reference to the references for AWB. A method for calibrating AWB is provided that includes selecting an image as a scene prototype, wherein the selected image was captured by a second imaging sensor different from a first imaging sensor, transforming the selected image into a scene prototype image for the first imaging sensor, generating a scene prototype reference using the scene prototype image for the first imaging sensor, and adding the generated scene prototype reference to references for AWB that include color temperature references.08-05-2010
20110298946IMAGE PROCESSING APPARATUS, IMAGE PICKUP APPARATUS, IMAGE PROCESSING METHOD, AND COMPUTER PROGRAM - An image processing apparatus that performs individual optimum image processing on each of a portion of an image illuminated by a light source and a portion of the image shaded from the light source, an image pickup apparatus, an image processing method, and a computer program are provided.12-08-2011
20110298944ADAPTIVE LENS SHADING CORRECTION - Systems, methods, and devices for applying lens shading correction to image data captured by an image sensor are provided. In one embodiment, multiple lens shading adaptation functions, each modeled based on the response of a color channel to a reference illuminant, are provided. An image frame from the image data may be analyzed to select a lens shading adaptation function corresponding to a reference illuminant that most closely matches a current illuminant. The selected lens shading function may then be used to adjust a set of lens shading parameters.12-08-2011
20120105669IMAGING APPARATUS - An imaging apparatus includes an imaging sensor operable to capture a subject image and output image information, a gain setting unit operable to set a value of an output signal amplification gain according to a value of ISO sensitivity for amplifying the image information output from the imaging sensor, a determination unit operable to determine a value of white balance gain to be used for white balance correction according to the value of the output signal amplification gain set by the gain setting unit, and a white balance correcting unit operable to perform white balance correction on the image information output from the imaging sensor based on the value of the output signal amplification gain set by the setting unit and the value of the white balance gain determined by the determination unit.05-03-2012
20110285870COLOR PROCESSING METHOD, PROGRAM THEREFOR, AND IMAGE PICKUP APPARATUS - A color processing method which sets viewing conditions easily and properly from shooting conditions added to an image. Shot image data and shooting conditions of the image data are obtained. Input side viewing conditions from the obtained shooting conditions are set. The image data with a color appearance model based on the set input side viewing conditions are converted.11-24-2011
20110292238IMAGING SYSTEM, IMAGING APPARATUS, INTERCHANGEABLE LENS, METHOD OF CONTROLLING IMAGING SYSTEM, AND PROGRAM - An imaging system includes: an imaging apparatus including a first communication section performing communication with an interchangeable lens, and a first control section making a transmission request of prediction information being state information on a state of a member included in the interchangeable lens and being the state information related to a state of the member after a predetermined time period to the interchangeable lens; and an interchangeable lens including a second communication section performing communication with the imaging apparatus, a calculation section obtaining the state information from the member and calculating the prediction information on the basis of the obtained state information and the predetermined time period, and a second control section controlling transmission of the calculated prediction information to the imaging apparatus.12-01-2011
20110292237IMAGE-CAPTURING DEVICE, USER INTERFACE AND METHOD FOR SELECTIVE COLOR BALANCE ADJUSTMENT - There is provided a user interface on a display unit of an image-capturing device for selective color balance adjustment of an image. The user interface allows for an image to be divided into a plurality of regions. A user may select one or more regions on the user interface. The user interface also includes a control unit for adjusting a color balance value for each of the selected regions on the user interface based on user input. The user interface allows for adjustment of the color balance value for different regions of an image prior to the image being written onto a recording medium by the image-capturing device.12-01-2011
20090295938IMAGE PROCESSING DEVICE WITH AUTOMATIC WHITE BALANCE - The purpose of the present invention is to provide sophisticated AWB technologies. According to one aspect of the present invention, there is provided a technology for adjusting a white balance of a frame of image data including a plurality of color elements. This technology is characterized by comprising: dividing the frame into a plurality of blocks including a plurality of pixel data; judging, for each of all of or a part of the blocks, whether the block is likely to be grey or not, and; deciding gains for adjusting a white balance using the blocks judged as being likely to be grey.12-03-2009
20110267494IMAGE PROCESSING APPARATUS, CONTROL METHOD THEREOF, AND IMAGE-CAPTURING APPARATUS - Disclosed are an image processing apparatus which effectively corrects, by a simple method, color crosstalk that is generated in a captured image by light obliquely entering an image sensor, and a control method thereof. A white-detection area used in white balance processing for a captured image signal is set in accordance with an aperture value used in image capturing. The degree of color crosstalk depends on an aperture value used in image capturing, and the spectral sensitivity characteristic of the image sensor changes depending on the degree of color crosstalk. By setting a white-detection range to correct a change of the spectral sensitivity characteristic depending on the aperture value, color crosstalk can be simply, effectively corrected.11-03-2011
20100091132IMAGE CAPTURING DEVICE AND IMAGE PREPROCESSING METHOD THEREOF - An image capturing device and the image preprocessing method thereof. The image preprocessing technique receives digital image consisting of luma data and chrominance data, integrates the chrominance data of adjacent rows to generate integrated chrominance data, buffers the luma data and the integrated chrominance data in a group of line buffers, and generates pre-processed chrominance data by making adjacent rows share the same integrated chrominance data. The luma data from the line buffer group form an image with the pre-processed chrominance. The image may be displayed on a display.04-15-2010
20090180002WHITE BALANCE PROCESSING APPARATUS AND PROCESSING METHOD THEREOF - Disclosed herein is a white balance processing apparatus comprising white balance processing means for effecting white balance processing on an image to be taken, color histogram processing means for effecting histogram processing by color components in accordance with the image to be taken processed of white balance by the white balance processing means, and display means for displaying histograms by color components obtained by the color histogram processing means.07-16-2009
20100079615IMAGE PROCESSING METHOD, IMAGE PROCESSING APPARATUS, IMAGE PICKUP APPARATUS, AND STORAGE MEDIUM - An image processing method comprises obtaining a color input image obtained by taking an image using an optical system 04-01-2010
20100079614IMAGE CORRECTION APPARATUS, IMAGE CORRECTION METHOD AND STORAGE MEDIUM FOR IMAGE CORRECTION PROGRAM - An image correction apparatus comprises an image capture unit configured to capture image data, a separator unit configured to separate the image data into luminance data and color-difference data, a conversion unit configured to convert the color-difference data into a set of amplitude values in a spatial frequency domain, a light-source state detector configured to detect a light-source state when the image capture unit captures the image data, a correction unit configured to correct the set of amplitude values based on the light-source state so that a predetermined amplitude value is decreased, an inverse-conversion unit configured to inversely convert the set of the amplitude values which is corrected by the correction unit to produce corrected color-difference data, and a corrected image generator configured to generate corrected image data from the corrected color-difference data and the luminance data.04-01-2010
20090295939IMAGING DEVICE - An Imaging device has an Image sensor with a mosaic color filter array comprising three or four color elements. The color elements are arrayed such that each color element is opposite a pixel in said image sensor. The imaging device further has a color-transform a processor that carries out a color-transform process on a color signal in each pixel to generate a single color-transform signal in each pixel; and a color interpolation processor that interpolates at least one missing color-transform signal in each pixel using color-transform signals from surrounding pixels. The color-transform processor interpolates at least one missing color signal in each pixel using color signals generated over adjacent pixels, and multiplies the originally generated color signal and the interpolated color signal by color-transform coefficients to generate the single color-transform signal.12-03-2009
20120026357IMAGE INPUT DEVICE - Provided is an image input device capable of generating a luminance signal having a high ratio of S/N of an image, and further capable of providing the image with a little uncomfortable feeling even in the night time when the amount of photons is few, wherein, when a visible light luminance signal is relatively low, and an infrared component is predominant in an original image component, for example, correcting color-difference signals with added luminance prevents the color-difference signals with the added luminance from being too high, thereby it becomes possible to perform more natural color reproduction, which is close to original visible light, and gives a little uncomfortable feeling.02-02-2012
20100007765Spectral improvement of digital camera color images - Systems and methods for modifying a color image of a scene are provided. The systems and methods involve illuminating at least a portion of the scene with a light having a known spectral power distribution, and detecting a finite number of spectral components of light received from the scene under such illumination. The detected values of spectral components of light received from the scene are used to modify the color image or rendition of the scene.01-14-2010
20110267493FLUORESCENCE OBSERVATION APPARATUS - A fluorescence observation apparatus of the present invention includes a light source section that can emit a plurality of excitation light beams for exciting a plurality of fluorescent substances and a reference light, an image pickup section that picks up images of a plurality of fluorescent light beams emitted by emitting the plurality of excitation light beams to the plurality of fluorescent substances and reflected light of the reference light, an image generation section that generates image signals corresponding to the plurality of fluorescent light beams and the reflected light of the reference light whose images have been picked up by the image pickup section, and an image processing section that assigns a plurality of fluorescent light images related to image signals corresponding to the plurality of fluorescent light beams and a reference light image related to an image signal corresponding to the reflected light of the reference light to a plurality of color channels respectively and outputs the resulting image as a synthesized image, wherein the image generation section generates an image signal in which the one fluorescent light image and the synthesized image are arranged side by side on a same screen, and the image processing section calculates, when a color tone operation is performed on any one of the plurality of image signals generated by the image generation section, a color tone adjustment coefficient for achieving color tone balance with image signals other than the image signal subjected to the color tone operation and performs color tone calculation processing on the image signals to be assigned to the plurality of color channels using the calculated color tone adjustment coefficient.11-03-2011
20090147098IMAGE SENSOR APPARATUS AND METHOD FOR COLOR CORRECTION WITH AN ILLUMINANT-DEPENDENT COLOR CORRECTION MATRIX - An image sensor apparatus is disclosed. The image sensor apparatus includes an image sensor for generating pixel data corresponding to a scene under a scene illuminant. The image sensor apparatus also includes a memory for storing color correction information corresponding to a subset of candidate illuminants. A color correction module in the image sensor apparatus derives an illuminant-dependent color correction matrix based on the color correction information corresponding to the subset of candidate illuminants and applies the illuminant-dependent color correction matrix to the pixel data to generate a color corrected digital image.06-11-2009
20090147100CAMERA CONTROL APPARATUS, CAMERA CONTROL METHOD, AND CAMERA SYSTEM - A camera control apparatus comprises a processor adapted to control a display to display a plurality of sensed images respectively obtained from a plurality of cameras and a transmitter adapted to transmit a command to control another camera to execute color adjustment based on an image signal of a reference region of an image of a reference camera of the images displayed as a list by the processor.06-11-2009
20080266417White balance adjusting device, imaging apparatus, and recording medium storing white balance adjusting program - A white balance adjusting device includes a dividing unit which divides an image to be processed into plural small areas, a calculating unit which calculates evaluation values of each small area based on color information of the image, a judging unit which judges whether to use the evaluation values of a small area of attention for white balance calculation based on a relationship between the evaluation values of the small area of attention and the evaluation values of small areas adjacent to the small area of attention among the evaluation values of the plural small areas, and a calculating unit which performs white balance calculation based on a judgment result of the judging unit. Therefore, color failure is suppressed and white balance adjustment can be performed properly.10-30-2008
20090309996IMAGE PROCESSING APPARATUS, IMAGE PROCESSING SYSTEM, IMAGE PROCESSING METHOD, STORAGE MEDIUM, AND PROGRAM - In an image processing apparatus which can always provide an excellent processed image, an analysis unit analyzes condition information representing a condition at a time when an image is obtained and being included in image information, and determines an algorithm of an image correction process for the image based on the analyzed result.12-17-2009
20090309994Tone Correcting Method, Tone Correcting Apparatus, Tone Correcting Program, and Image Equipment - A face detecting unit detects presence/non-presence of a face and its position from an input image or its reduced image. A parameter calculation control unit calculates a correction parameter according to the presence/non-presence of the face. When the face is detected, a face area correction parameter calculating unit calculates a correction parameter having characteristics such that as a representative luminance value is larger, the image becomes darker, and as smaller, the image becomes brighter based on a boundary luminance level. When a face is not detected, a standard correction parameter calculating unit 12-17-2009
20110007181Image processing apparatus, method, program and image pickup apparatus - An amplifier gain setting section estimates a light source parameter which relies upon a spectral distribution of an image pickup light source based on an image signal. Then, a first adjustment control value for each color signal when adjustment is to be performed so as to establish a white balance based on the estimated parameter is modulated by an amount corresponding to a follow-up sensitivity toward a second adjustment control value when adjustment is to be performed so that an achromatic subject under a particular reference light source is reproduced as an achromatic subject. The modulated adjustment control value is set to a white balance amplifier. The follow-up sensitivity is set to the amplifier gain setting section in response to an illuminance level estimated from a detection value of the brightness.01-13-2011
20100201841SYSTEM AND METHOD FOR EFFECTIVELY PERFORMING A WHITE BALANCE PROCEDURE FOR ELECTRONIC CAMERAS - A system and method for effectively performing a white balance procedure for electronic cameras includes a neutral density diffusion light filter assembly adapted to be attached over the lens of a camera-type device equipped with an electronic device that captures image data using an image sensor device. Alternatively, the diffusion filter could be inserted internally in association with the lens assembly or built into the camera body as an external window associated with an independent image sensor device. The diffusion filter acts as an illuminance integrator of broad light acceptance angle to document light conditions (incident or reflective) that exist at the time an image is captured, thereby enabling a white balance operation at point of capture and production of a computer-generated image with little or no colorcast and requiring minimal (if any) subsequent manual color adjustment.08-12-2010
20100201840IMAGE PICKUP DEVICE, IMAGE PROCESSING METHOD, AND STORAGE MEDIUM - A first WB correction coefficient for modifying a tint of an image captured in an auxiliary light non-emission condition to a tint of a peripheral light of the auxiliary light non-emission condition is set by a first WB correction coefficient setting unit, and a second WB correction coefficient for modifying the tint of an image captured in an auxiliary light emission condition to the tint of the auxiliary light non-emission condition is set by a second WB correction coefficient setting unit. The tint of the image captured in the auxiliary light emission condition is then modified to the tint of the auxiliary light non-emission condition by an image processing unit on the basis of the first WB correction coefficient and the second WB correction coefficient.08-12-2010
20120033099PHOTO-DETECTOR AND METHOD FOR DETECTING AN OPTICAL RADIATION - An image acquisition system comprises a radiation photodetector implementing at least two tunable spectral responses indicating the photodetector sensitivity as a function of the wavelength. The photodetector includes means for receiving at least two configuration signals controlling the tuning of at least part of the shape of the at least two spectral responses. The system comprises a control module for receiving an identification signal indicating the spectral intensity of a source of light, detecting that the source spectral intensity shape in at least one spectrum portion is different from the reference spectral intensity shape in the at least one spectrum portion, and changing a configuration signal in order to change a spectral response shape in the at least one spectrum portion as a function of the difference between the shape of the source spectral intensity and the shape of the reference spectral intensity in the at least one spectrum portion.02-09-2012
20090207274Apparatus and method for adjusting white balance in a digital imaging device - A method and apparatus for adjusting a white balance in a digital imaging device. The method including the steps of: analyzing a histogram of an image to which a white balance algorithm is to be applied; classifying the image, to which the white balance algorithm is to be applied, according to color distribution determination criteria; and the white balance algorithm is applied to the image in a customized manner based on results of the classification based on color distributions. The apparatus includes an image sensor unit for photographing a subject and for creating an original image; and an image processing unit for finding an achromatic color region through estimation of a color temperature of the original image, for extracting a white point of the achromatic color region, and for adjusting a white balance of the original image.08-20-2009
20090207273IMAGING APPARATUS, WAVEFORM SIGNAL DISPLAY METHOD, STORAGE MEDIUM, AND INTEGRATED CIRCUIT - An imaging apparatus with an automatic adjustment function, such as a white balance adjustment function, enables a result of such adjustment to be checked easily using a vector display. A waveform generation unit 08-20-2009
20090207272ELECTRONIC DEVICE WITH TWO IMAGE SENSORS - An electronic device for producing an image of an object is disclosed. The electronic device may include a black-and-white camera having a first sensor area configured to receive luma data pertaining to the object. The first sensor area may correspond to a first pixel array, the luma data associated with the first pixel array. The electronic device may also include a color camera having a second sensor area configured to receive chroma data pertaining to the object. The second sensor area may correspond to a second pixel array. The chroma data may be associated with the second pixel array. The electronic device may also include first logic configured to correlate pixels in the first pixel array with locations on the second sensor area.08-20-2009
20120287302SYSTEM AND METHOD FOR VIDEO CODING IN A DYNAMIC ENVIRONMENT - A method is provided in one example embodiment and includes receiving a camera dynamic parameter; determining a reference transform parameter based on the camera dynamic parameter; applying the reference transform parameter to generate a video image; and encoding the reference transform parameter in a bitstream for transmission with the video image. In other more specific instances, the method may include decoding a particular video image; decoding a particular reference transform parameter; and applying a particular reference transform parameter to the particular video image. The entropy-decoded data can undergo inverse quantization and transformation such that reference transformed data is combined with the entropy-decoded data. Additionally, the entropy-decoded data can be subjected to filtering before decoded video images are rendered on a display.11-15-2012
20100283866Image input processing apparatus and method - An image input processing apparatus includes: an optical band separating filter; a color filter of a four-color arrangement having an equivalence in which the sum of two colors is equivalent to one other color in the visible light region or the sum of three colors is equivalent to once or twice one other color in the visible light region; an optical sensor section that generates an imaging signal; a data separating section that separates the pixel data of the imaging signal into pieces of pixel data of four colors; an infrared separating section that performs infrared separation by a subtraction using the equivalence among the pieces of pixel data of the four colors after the separation; a first and second integration sections; a camera control processing section that determines which of the integration values from the first and second integrating sections is used.11-11-2010
20100277610Apparatus, Method And Computer Program Product Providing a Light Source With Memory - An apparatus, method and computer program product are provided for a light source having a memory. The method includes: capturing image data in conjunction with use of a light source; obtaining a light source-related parameter from the light source; and performing image processing on the captured image data in order to form an image, wherein the image processing utilizes the light source-related parameter.11-04-2010
20110169980APPARATUS AND METHOD FOR OBTAINING HIGH DYNAMIC RANGE IMAGE - Provided is an apparatus and method for obtaining a high dynamic range (HDR) image. The apparatus includes an image sensor generating a first image by applying different exposure times for units of different predetermined regions, an image separating unit separating the first image into images, each of which is composed of regions having an identical exposure time, an image restoring unit restoring the separated images in such a way that each of the separated images has a resolution that is the same as a resolution of the first image, and an image synthesizing unit synthesizing the restored images into a second image.07-14-2011
20090102943IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND IMAGE SENSING APPARATUS - An image processing apparatus includes a spectrum estimation unit for estimating a spectrum for each pixel from multiband image data comprising image data in multiple different wavelength ranges; a memory for storing spectral data suitable for each of multiple different shooting modes; and a conversion unit for determining a shooting mode of the multiband image data and converting the spectrum into band data with different spectral characteristics using the spectral data stored in the memory, the spectral data suitable for the determined shooting mode.04-23-2009
20110199507MEDIUM STORING IMAGE PROCESSING PROGRAM AND IMAGING APPARATUS - A storage medium storing an image processing program in which the image processing program obtains a plurality of images and displacement information indicating a positional displacement between the plurality of images, calculates weighting information for performing weighting processing on the displacement information for each of a plurality of color components, performs the weighting processing on the displacement information for each of the plurality of color components, calculates a pixel value of a color component of a calculation target based on local inflection information of a color component other than the color component of the calculation target and the weighting information after conducting the weighting processing, and generates a composite image based on a calculation result. Accordingly, it is possible to reduce a processing time in image processing which generates, from the plurality of images having the positional displacement, the composite image having a higher resolution than those images.08-18-2011
20100214437DIGITAL IMAGE PROCESSING APPARATUS, METHOD OF CONTROLLING THE APPARATUS, AND RECORDING MEDIUM HAVING RECORDED THEREON A PROGRAM FOR EXECUTING THE METHOD - Provided are a digital image processing apparatus and a method of controlling the apparatus, and more particularly, is a digital image processing apparatus which embodies a focusing screen digitally instead of optically, and a method of controlling the apparatus. The digital image processing apparatus includes: a lens; a photographing device obtaining data of an original image from light which has passed through the lens; and a digital signal processor performing a blurring treatment on the original image obtained from the photographing device and displaying the original image.08-26-2010
20110267492INDOOR/OUTDOOR SCENE DETECTION USING GPS - A digital camera system, comprising: a digital image sensor; an optical system for forming an image of a scene onto the digital image sensor; a global positioning system sensor; a processor-accessible memory system; and a processor. The processor performs the steps of analyzing a signal from the global positioning system sensor to determine whether the digital camera system is indoors or outdoors; capturing an input digital image of the scene using the digital image sensor; processing the input digital image responsive to whether the digital camera system is indoors or outdoors; and storing the processed digital image in the processor-accessible memory system.11-03-2011
20120194697INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD AND COMPUTER PROGRAM PRODUCT - An information processing apparatus, information processing method and computer program product cooperate in detecting a first target object contained in image information. Image information of an image is received through an interface. A processing circuit determines whether a first target object in the image information has not yet been detected. A determination is also made regarding whether a second target object in the image information has been detected. An image quality parameter of the image is modified to assist subsequent detection attempts in recognizing the first target object when the first target object has not yet been detected but the second target object has been detected.08-02-2012
20090167892WHITE BALANCE CONTROL DEVICE AND WHITE BALANCE CONTROL METHOD - A first white balance correction value is computed by detecting white pixels from an image. A determination is made as to whether or not a corrected image signal in the face region falls into a second color signal region surrounding a first color signal region that represents a skin color if white balance of the image signal in the face region is corrected based on the first white balance correction value. When it is determined that the corrected image signal of the face region falls into the second color signal region, a second white balance correction value for correcting the image signal is computed based on relationships between the corrected image signal of face region and the first color signal region. The computed second white balance correction value is modified based on information obtained when the image was captured.07-02-2009
20080231726APPARATUS AND METHOD FOR IMAGE COLOR CORRECTION IN A PORTABLE DEVICE - A method and apparatus for image color correction in a portable device. A device 09-25-2008
20080278602CAMERA - A camera includes an optical system, an image sensor, a white balance correction section, an original image processing section, a geometric setting section which sets a desired geometric transformation for the original picture signal, a geometry converter which generates a geometrically converted picture signal based on the geometric setting made by the geometric setting section, an edge component extractor, an edge signal generator, and an image synthesizer which synthesizes the geometrically converted picture signal and signal at the edges to generate a picture signal. The edge signal generator performs geometrical transformation of the edges of the image based on the geometric setting and is parameter-controlled based on a geometry parameter computed from a coefficient to emphasize edges for controlling the enhancement at the edges amount for the edges of the image and magnification to zoom an image calculated based on the geometric setting.11-13-2008
20080278601Efficient Determination of an Illuminant of a Scene - An aspect of the present invention reduces computational complexity in determining a illuminant of a scene of interest by selecting only a subset of illuminants from several more potential illuminants, and searching for a current illuminant for a present image frame in only the subset of illuminants. Computational complexity may be reduced due to the searching in fewer illuminants. The subset of illuminants are selected according to various aspects to enhance the probability that the closest matching potential illuminant is accurately determined. The features can be used in image capture devices (ICDs) such as video cameras.11-13-2008
20080303919IMAGE PICKUP DEVICE AND CAMERA MODULE USING THE SAME - An image pickup device includes a signal processing unit which processes a signal generated by separating a luminous signal into wavelength components of two or more colors by use of a sensor unit including two-dimensionally arranged pixels to which a wavelength separating unit for separating light wavelengths is arranged at a front face of a photoelectric converting element which converts the luminous signal condensed by an optical lens unit into electric signals, wherein the optical lens unit includes at least one optical lens having different focusing positions in accordance with the wavelengths of the luminous signal, and the signal processing unit includes an outline signal generating unit which extracts an outline signal from an output signal of the sensor unit.12-11-2008
20080309790WHITE BALANCE ADJUSTMENT DEVICE AND WHITE BALANCE ADJUSTMENT METHOD - To determine white balance convergence in a reliable manner, a white balance adjustment device for adjusting white balance of an input image supplied sequentially in time is provided. The white balance adjustment device comprises first and second integrating units. Each of the integrating units corrects a color component of a preceding input image based on mutually different correction parameter values. The integrating units respectively compute first and second integration values by integrating corrected color components. The first and second values to be used to correct the color component of a subsequent input image are determined by a correction parameter determining unit. The correction parameter determining unit changes the first and second values according to magnitude relationship between the first and second integration values and a benchmark value of the integration value. An image which has undergone the white balance adjustment is generated by correcting the color component of the image with a third value established between the first and second values.12-18-2008
20090316019TONE ADJUSTMENT METHOD FOR DIGITAL IMAGE AND ELECTRONIC APPARATUS USING THE SAME - A tone adjustment method for a digital image and an electronic apparatus using the same are presented. The method includes steps. A digital image is loaded. A detail image layer and a primary image layer are generated according to the digital image. A tone mapping procedure is performed on the primary image layer, for generate a tone mapping layer. A detail gain lookup table is loaded and then a corresponding gain is looked up according to each pixel value in the primary image layer, for generate a detail gain adjustment layer. A detail gain control procedure is performed and then a detail gain adjustment is performed on the detail gain adjustment layer and the detail image layer, for generate a gain correction layer. The gain correction layer and the tone mapping layer are combined, and then a combined layer is output, thereby completing the tone adjustment for the digital image.12-24-2009
20080303918COLOR CORRECTING FOR AMBIENT LIGHT - An apparatus and method are described for adjusting the color balance of a display. According to the method, a sensor of the apparatus detects the color temperature of ambient light. A controller of the apparatus adjusts the color balance of the emissive display based on the detected color temperature of ambient light.12-11-2008
20100265358SYSTEM AND METHOD FOR IMAGE CORRECTION - A system and method for correcting image data. Embodiments of the present invention provide calibration and image correction to overcome various lens effects including lens shading and lens imperfections. In one embodiment, the correction of image data is performed via utilization of a spline surface (e.g., Bezier surface). The use of spline surfaces facilitates efficient hardware implementation. The image correction may be performed on a per channel and illumination type basis. In another embodiment, the present invention provides a method for determine a spline surface to be used for calibrating an image signal processor to be used in correcting image data.10-21-2010
20080246856IMAGING APPARATUS AND IMAGING METHOD - An imaging apparatus includes one or a plurality of optical filters, an image sensor, an imaging signal processing part, a detecting part, and a control part. The one or the plurality of optical filters are selectively arranged in a path of an optical system for obtaining imaging light. The image sensor is provided for converting the imaging light obtained through the optical system into an imaging signal. The imaging signal processing part is provided for subjecting the imaging signal from the image sensor to a color-temperature correction processing. The detecting part is provided for detecting a type of the one or the plurality of optical filters arranged in the optical system. The control part is provided for adjusting a color temperature that is set at the imaging signal processing part to a color temperature defined for each filer detected by the detecting part.10-09-2008
20080204573IMAGE SENSING APPARATUS AND METHOD - It is an object of this invention to reduce image sensing errors due to wrong white balance control using wrong color temperature information in an image sensing device capable of performing white balance control using a color image signal from an image sensing device. In order to attain the above object, when the color in the vicinity of the locus of a blackbody cannot be extracted in detection of a color temperature in a color image signal, color temperature information is corrected on the basis of a piece of color temperature information output from a calorimetric sensor, thereby controlling the white balance of a color image signal output from an image sensing element. The number of achromatic data extracted from the color image signal is counted. The color temperature is calculated by weighting a color temperature obtained from the color image signal and that obtained from the calorimetric sensor in accordance with the count, thereby performing white balance control.08-28-2008
20090180001IMAGE PROCESSING APPARATUS, IMAGING APPARATUS, METHOD AND PROGRAM - An image processing apparatus includes a tone conversion section configured to execute luminance tone compression on an entered image by use of a predetermined conversion curve; a linear matrix processing block configured to execute correction based on matrix operation on an image entered via the tone conversion section; and a hue and saturation adjustment block configured to execute hue and saturation conversion processing based on a set parameter on an image entered via the linear matrix processing block. The apparatus further includes a brightness decision block configured to determine whether brightness of the image to be processed is lower than a certain brightness level; and a control block configured to control a combination of the operations to be processed by the processing section and blocks on the basis of setting of a tone conversion function of the tone conversion section and a decision result obtained by the brightness decision block.07-16-2009
20090180000IMAGE PROCESSING SYSTEM AND CAMERA INCLUDING THE SAME - An image processing system is configured to include an imaging system which has a CCD to capture an image of a subject and outputs as pixel data an image signal of the subject output from the CCD, a conversion buffer memory which temporarily stores the pixel data according to each pixel position, a database which stores correction information for each pixel, and a corrector circuit which performs correction processing on each pixel data stored in the conversion buffer memory based on the correction information stored in the database, and sequentially outputs the corrected pixel data. In the image processing system, the correction information in the database is changed in accordance with a change in a magnification of the imaging system.07-16-2009
20130120607IMAGE COMPOSITION APPARATUS AND STORAGE MEDIUM STORING A PROGRAM - An image composition apparatus 05-16-2013
20090160969Image capturing apparatus - An image capturing apparatus can use a reading time from an image sensor efficiently. To achieve the object, the image capturing apparatus includes an image capturing unit which separates a color image of a subject being captured by an image sensor having pixels of colors into three or more fields and outputs said three or more fields successively, and an image processing unit which generates a low-resolution image which is lower in resolution than the color image obtained by the image capturing unit, based on output of one or more fields among said three or more fields, said one or more fields being able to extract color information of all the colors, wherein the image processing unit starts generation of the low-resolution image in a period in which fields other than said one or more fields for generating the low-resolution image are read.06-25-2009
20090160968CAMERA USING PREVIEW IMAGE TO SELECT EXPOSURE - A digital camera comprises an image sensor for providing initial sensor image data and final sensor image data; a lens for exposing the image of a scene onto the image sensor; an exposure control system for adjusting an exposure level of a final image on the image sensor in response to a scene type; and a processor for processing the initial sensor image data to select one of a plurality of scene types, and to process the final sensor image data in response to the scene type.06-25-2009
20090027514IMAGE PICKUP APPARATUS AND METHOD - A digital still camera has a CCD image sensor, and picks up an image to produce an image signal. Colorimetric sensors have a sensor outer surface oriented in a measuring direction being different from a direction of an optical axis of the CCD image sensor, and colorimetrically measure ambient light. Lighting color temperature of the ambient light is determined according to a result of colorimetry. Image color temperature of the image is retrieved according to the image signal. A gain for each of color components is determined according to the lighting color temperature and the image color temperature. The color components of the image signal are amplified with the gain, to adjust white balance. Also, a camera body accommodates the CCD image sensor and the colorimetric sensors. The sensor outer surface is positioned on at least one of an upper surface and a lateral surface of the camera body.01-29-2009
20120069212IMAGE CAPTURE WITH ADJUSTMENT OF IMAGING PROPERTIES AT TRANSITIONS BETWEEN REGIONS - Image capture by using an imaging assembly having spectral sensitivities which are tunable in accordance with a capture parameter. First and second capture parameters are applied respectively to first and second regions of a scene, and a preview image is captured and displayed, together with a user interface which permits a user to adjust a transition of the capture parameter at a boundary between the first and second regions. Further preview images may be captured and displayed until the user is satisfied with the appearance of the preview image at the boundary of the first and second regions. A final image is captured using the first and second capture parameters together with any adjustment to the transition of the capture parameters at the boundary between the first and second regions.03-22-2012
20090167891IMAGE CAPTURING APPARATUS - In an image capturing apparatus, a hue shift is prevented. A digital camera has a gray level correction function. Image data obtained with a CCD 07-02-2009
20090102944COLOR SIGNAL PROCESSING CIRCUIT, IMAGE PICKUP APPARATUS, AND COLOR SIGNAL PROCESSING METHOD - The color signal processing circuit includes a first calculation unit generating an R/G value, a second calculation unit generating a B/G value, and a position specifying unit specifying, based on the R/G and B/G values, a position expressed as a color temperature of the light of a light source in a color coordinate system defined by R/G and B/G coordinate axes as the position of the light source. The color signal processing circuit further includes a pull determining unit determining a displacement amount between the light source position specified and a position of a target point on a blackbody radiation curve defined in the color coordinate system, sets gain values for the R, G, B color signals for achieving a white balance based on the displacement amount, and supplies the gain values to white balance amps amplifying the R, G, B color signals, and carries out white balance processing.04-23-2009
20090021602AUTO WHITE BALANCE CORRECTION VALUE CALCULATION DEVICE, METHOD, PROGRAM, AND IMAGE PICKUP DEVICE - A normal AWB (auto white balance) correction value is calculated based on inputted image data. Further, a face area is identified from the inputted image data and a face AWB correction value is calculated based on image data in the face area. Then, first feature data and second feature data are extracted from the inputted image data and image data in the face area, respectively. A total AWB correction value is calculated in accordance with at least one of the face AWB correction value and the normal AWB correction value based on a comparison result of the first feature data and the second feature data. Thus, an erroneous correction can be prevented in an AWB correction using a face detection function.01-22-2009
20110205390SIGNAL PROCESSING DEVICE AND IMAGING DEVICE - According to one embodiment, a signal processing device includes a high spatial frequency range component evaluation unit configured to evaluate a high spatial frequency range component of each of basic colors for each of divided regions for an image picked up by an image pickup device, the divided regions being obtained by dividing an imaging surface of the image pickup device into a plurality of regions, a subject distance estimation unit configured to estimate a subject distance for each of the divided regions on the basis of the high spatial frequency range component, a filter coefficient generating unit configured to generate a filter coefficient for each of the divided regions on the basis of the subject distance, and a filter operation unit configured to perform a filter operation on the high spatial frequency range component by use of the filter coefficient.08-25-2011
20090231462IMAGE-PICKUP APPARATUS AND WHITE-BALANCE CONTROL METHOD PROVIDED THEREFOR - The present invention allows for selecting a predetermined chromatic color for extraction from among a plurality of chromatic colors based on the result of identification of acquired photographing information. When the value of a white extraction area of the photographing information is smaller than a first threshold value, it is determined whether the value of the area of the selected predetermined chromatic color is greater than or equal to a second threshold value. If the value of the predetermined chromatic-color area is determined to be greater than or equal to the second threshold value, white balance is controlled by bringing the value of the predetermined chromatic-color area near to a predetermined target color value.09-17-2009
20090213243Shading compensation device, shading compensation value calculation device and imaging device - A shading compensation device which compensates for shading which differs for respective colors. A pixel counter counts co-ordinate positions of image data which is supplied from a black level correction section. A relative position calculation section compares the image data with compensation value tables and calculates relative co-ordinate positions of pixels which are objects of processing. A compensation value interpolation section refers to the compensation value tables, which are stored for the respective colors in a compensation value table memory, and interpolates shading compensation values for the relative co-ordinate positions calculated by the relative position calculation section. A multiplier multiplies the image data which is the objects of processing with the new shading compensation values obtained by the interpolation processing. Thus, shading-compensated image data is generated.08-27-2009
20090002516IMAGE CAPTURING APPARATUS, SHOOTING CONTROL METHOD, AND PROGRAM - An image capturing apparatus includes an image capturing unit configured to capture an image of a subject to obtain an image signal; a display unit configured to display an image based on the image signal and a specific index; an instruction-receiving unit configured to receive a specific instruction; and a control unit configured to perform control such that, in a case where a specific mode is set, when an auto-focus point is designated using the instruction-receiving unit, it is determined whether the face of a subject is located at the auto-focus point, and then if it is determined that the face of the subject is located at the auto-focus point, auto-focusing, auto-exposure, and auto-white-balance suitable for the position of the face are performed.01-01-2009
20090231461IMAGE CAPTURE DEVICE PROVIDING COLOR ADJUSTMENT AND COLOR ADJUSTMENT METHOD THEREOF - A digital still camera (DSC) includes an encoder, a display panel, and a color adjustment unit. The encoder is configured to encode an image signal in the DSC into a first preview image. The display panel is configured to display the first preview image to allow determination of the need for color adjustment. The color adjustment unit is configured to adjust the color of the image signal in response to a user input made based upon the determination. The adjusted image signal is also encoded by the encoder as a second preview image displayed by the display panel in real time to allow determination of the need for further adjustment, or to store the adjusted image signal.09-17-2009
20090251562IMAGE CAPTURING APPARATUS, IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - An image capturing apparatus includes: a subject image signal generating unit that generates a subject image signal from incident light forming a subject image; a luminance signal and color difference signal generating unit that generates a luminance signal and a color difference signal from the subject image signal; a color difference signal accumulative adding unit that accumulatively adds the color difference signals with lapse of time and outputs an accumulatively added color difference signal; and a signal output unit that outputs the luminance signal generated by the luminance signal and color difference signal generating unit and the accumulatively added color difference signal output by the color difference signal accumulative adding unit.10-08-2009
20090219408ELECTRONIC CAMERA - An electronic camera is provided with: a gain information calculator for calculating gain information indicating a gain of a color information signal in a predetermined aperture state based on a gain of a color information signal obtained by performing a white balance adjustment using an object image signal; a storer for storing the gain information calculated by the gain information calculator, a detector for detecting a difference between an aperture state at a time of photographing and a predetermined aperture state; a corrector for correcting the gain information stored by the storer based on the difference detected by the detector; and an adjustor for adjusting the color information signal at a time of photographing by using the gain information corrected by the corrector.09-03-2009
20090256928Method and device for detecting color temperature - A method for detecting color temperature and an apparatus thereof are disclosed. According to the present invention, the apparatus for detecting color temperature converts RGB color information, generated by interpolating an image signal sequentially inputted in units of pixel from an image sensor, to a three-dimensional coordinate value of luminance, R-G color difference information, and B-G color difference information, and then renews the added value per color, if included in a filtering zone corresponding to a characteristic curve of the image sensor. Then, an average value per color is generated in units of frame, and the compensation rate per color is determined such that the average value per color becomes identical to each other. With the present invention, accurate colors can be displayed by detecting the color temperature of the current light source and correcting the distorted color information.10-15-2009
20100265356Image processing method, image processing apparatus, image capturing appartus and image processing program - There is described an image processing method, which makes it possible to continuously and appropriately corrects excessiveness or shortage of light amount in the flesh-color area. The image processing method includes: a light source condition index calculating process for calculating an index representing a light source condition of the captured image data; a correction value calculating process for calculating a correction value of the reproduction target value, corresponding to the index representing the light source condition; a first gradation conversion condition calculating process for calculating a gradation conversion condition for the captured image data, based on the correction value of the reproduction target value; an exposure condition index calculating process for calculating an index representing an exposure condition of the captured image data; and a second gradation conversion condition calculating process for calculating a gradation conversion condition for the captured image data, corresponding to the index representing the exposure condition.10-21-2010
20090251561System and method for adaptive local white balance adjustment - The disclosure describes embodiments of an apparatus comprising an image sensor including a pixel array having a plurality of pixels and an automatic white balance (AWB) circuit coupled to the pixel array. The AWB circuit is used to determine a local white balance component for each pixel, determine a global white balance component for each pixel, and apply a white balance adjustment to each pixel, the applied white balance adjustment comprising a combination of the local white balance component and the global white balance component. The disclosure also describes embodiment of a process including receiving image data from each pixel in a pixel array, determining a local white balance component for the image data from each pixel, determining a global white balance component for the image data from each pixel, and applying a white balance adjustment to the image data from each pixel, the applied white balance adjustment comprising a combination of the local white balance component and the global white balance component. Other embodiments are also disclosed and claimed.10-08-2009
20120105670IMAGE SENSING APPARATUS AND IMAGING SYSTEM - An image sensing apparatus includes a pixel array, a first color filter, a second color filter, and a light shielding portion. The amount of electric charges generated in a first pixel after light of a first wavelength enters the first pixel is larger than that of electric charges generated in a second pixel after light of a second wavelength enters the second pixel. The light shielding portion defines the aperture regions of the first and second pixels so as to set the aperture area of the first pixel larger than that of the second pixel.05-03-2012
20120105668REGION OF INTEREST EXTRACTION - An example image capture device determines a region of interest using a first image captured while a light source is powered off and a second image captured while a light source is powered on and uses the region of interest to automatically set configurations. In one example, an image capture device includes a controlled light source, an image sensor configured to capture images, and a processing unit configured to cause the image sensor to capture a first image of a scene while the controlled light source is powered off, cause the image sensor to capture a second image of the scene while the controlled light source is powered on, calculate luminance differences between a plurality of regions in the first image and a plurality of collocated regions in the second image, and determine that a region of interest includes those regions for which the luminance differences exceed a threshold.05-03-2012
20090256930COLOR PROCESSING APPARATUS AND COLOR PROCESSING METHOD - A color processing apparatus for evaluating the gradation characteristic of a color conversion table that is used to convert signal values in input color space into signal values in output color space and has a plurality of grid points includes an acquisition unit configured to acquire signal values in the output color space corresponding to four adjacent grid points in the input color space through the color conversion table, a calculation unit configured to calculate a property of a tetrahedron formed by the signal values in the output color space, and an evaluation unit configured to evaluate a gradation characteristic of the color conversion table based on the property of the tetrahedron. The property of the tetrahedron may be the volume of the tetrahedron or the surface area of the tetrahedron.10-15-2009
20100013952APPARATUS AND METHOD FOR CONTROLLING GAIN OF COLOR SIGNAL - An apparatus for controlling gain of color signal includes an auto white balance algorithm applying unit determining a white estimation region from an input image, and calculating a first color signal gain for correcting an average color signal level of pixels of the white estimation region to white, a pixel determining unit determining a form of each pixel according to brightness and color using the color signal level of the each pixel of the input image, and a color signal gain determining unit determining a color signal gain to be applied to the each pixel according to the form of the each pixel of the input image as any one of the first color signal gain, a second color signal gain determined by the color signal level of the each pixel for correcting the each pixel to white and a unit gain.01-21-2010
20090316018Image Signal Processing Method and Image Signal Processing Device - It is possible to improve a response of a dynamic range expansion processing. The present image signal processing method includes a first step (ST12-24-2009
20100149374GAIN CALCULATING DEVICE - A more preferable WB gain is calculated during strobe illuminated photography. When a WB gain for an image captured through strobe illuminated photography is calculated, the degree of contribution of strobe light is first estimated. When the degree of contribution is estimated, the image is first divided into a plurality of blocks, and typical brightness values and typical color values of the respective blocks are determined (S06-17-2010
20100265357GENERATION OF SIMULATED LONG EXPOSURE IMAGES IN RESPONSE TO MULTIPLE SHORT EXPOSURES - Simulating a long exposure-time image from a sequence of short exposure-time images captured at slightly different times. The sequence of images is combined in a temporal integration process to create a long exposure image that simulates the output from a still camera, steadied by a tripod, whose light-sensitive material has been exposed to the same scene from the time of the beginning of the first input image of the sequence to the last image of the input sequence. The method overcomes limitations of hand-held video and image recording devices, allowing the user to easily create effects normally associated with high-end digital still cameras under expert control.10-21-2010
20100149372IMAGE DATA PROCESSING WITH MULTIPLE CAMERAS - Pictures can be taken with multiple (e.g., two) cameras, and the statistics associated with any of those pictures can be used to correct (e.g., color balance) any of the other pictures. Generally speaking, first image data captured by a first camera is accessed (e.g., retrieved from memory). Similarly, second image data captured by a second camera is accessed. The first image data and second image data are acquired at or about the same time using the first and second cameras together (e.g., at the same location, so that each camera is subject to the same light source). The first image data can then be processed (e.g., color balanced) using information that is derived using the second image data.06-17-2010
20100149373Apparatus and method of reproducing color - A color reproduction apparatus may include a white balance performing unit to perform white balance with respect to an image obtained from a sensor using a white balance gain, an image restoring unit to restore an RGB image from the white-balanced image by interpolating a color filter array image, a first color corrector to correct a color distortion caused by a light source by applying first correction data, and a second color corrector to correct a color distortion caused by a characteristic of a sensor by applying second correction data.06-17-2010
20100157091SOLID-STATE IMAGE SENSOR - A solid-state image sensor has a plurality of pixels, a read-out circuit and a signal processing section. The plurality of pixels includes a plurality of first pixels, a plurality of second pixels, a plurality of third pixels and a plurality of fourth pixels. The signal processing section includes a color acquisition section, a first judgment section configured to determine whether or not the white data value W in the target pixel block is smaller than a predetermined first set value, and a white color correction section configured to perform correction processing of the white color data value W in the target pixel block based on the following Expression (1) when the judgment result of the first judgment section is NO, and to output the white data value W by itself without performing the correction processing based on the Expression (1) when the judgment result of the first determination section is YES;06-24-2010
20100157092GENERATING A COLOR CHARACTERIZATION MODEL FOR AN INPUT IMAGING DEVICE - A method of generating a color characterization model for an input imaging device includes capturing a target having plural patches using the input imaging device to produce plural digital values in a device-dependent color space, the plural digital values having corresponding target measurements in a color characterization set. The method further includes determining if any of the plural digital values are collinear with each other, and removing, in a case where it is determined that digital values are collinear with each other, at least one of the collinear digital values and corresponding target measurements from the color characterization data set. In addition, the method includes generating the color characterization model for the input imaging device based on the plural digital values and corresponding target measurements remaining in the color characterization set. An apparatus for generating a color characterization model for an input imaging device is also provided.06-24-2010
20090115870IMAGE PROCESSING APPARATUS, COMPUTER-READABLE RECORDING MEDIUM RECORDING IMAGE PROCESSING PROGRAM, AND IMAGE PROCESSING METHOD - An image processing apparatus includes: interpolation G calculating units that calculate a plurality of types of G interpolation candidates G05-07-2009
20100259639AUTOMATIC BACKLIGHT DETECTION - In a particular embodiment, a method is disclosed that includes receiving image data at an auto white balance module and generating auto white balance data. The method further includes detecting a backlight condition based on the auto white balance data. An apparatus to automatically detect a backlight condition is also disclosed.10-14-2010
20100259638IMAGING TERMINAL HAVING COLOR CORRECTION - There is provided an imaging terminal comprising a hybrid monochrome and color image sensor pixel array having a first subset of pixels provided by color pixels having color filter elements and a second subset of pixels provided by monochrome pixels without color filter elements. The terminal can be operative to capture a frame of image data including monochrome image data representative of light incident on the monochrome pixels and color image data representative of light incident on the color pixels. The terminal can be operative to activate a color correction processing module that utilizes the monochrome color image data.10-14-2010
20090046171NON-LINEAR COLOR CORRECTION - A method for imaging includes defining a set of one or more color correction parameters having values that vary over a predefined color space. For each of the pixels in an input image, the location of the respective input color is determined in the color space, and a value of the one or more color correction parameters is selected responsively to the location. The respective input color is modified using the selected value so as to produce a corrected output color of the pixel in an output image.02-19-2009
20100188524IMAGING DEVICE AND IMAGING METHOD - An imaging device is provided which includes a hue value setting portion that sets at least one hue value from among a plurality of hue values, a color component region detection portion that detects a region having a color component that includes the set hue value, from image data of a photographic subject, and a color component region display portion that, based on the image data of the photographic subject, converts, of the photographic subject, the detected region having the color component to a first color, converts regions other than the detected region having the color component to a second color different from the first color, and displays the photographic subject on a display portion.07-29-2010
20080211925White balance correction apparatus and method - A specific target included in an image is detected by a specific target detection unit based on a specific target evaluation value representing likeliness of the specific target. Using a first white balance correction value calculation unit for obtaining a first white balance correction value for the region of the image other than the specific target, a second white balance correction value calculation unit for obtaining a second white balance correction value for the specific target region, and a white balance correction value comparison unit for making a comparison between the first and second white balance correction values, white balance in the region other than the specific target is corrected using the first white balance correction value, and white balance in the specific target region is corrected using the second white balance correction value, if the white balance correction values are different from each other.09-04-2008
20100225779Method and Device to extend camera battery life - The battery power consumption in a camera is adjustable based on the level of camera activity determined from formation on scene changes. Information can be gathered from statistical data on auto-white balance, auto-exposure and auto-focusing calculations, or from scene movement and camera movement. When the activity level is low, the viewfinder frame rate can be reduced, the accuracy of analog-to-digital conversion in the camera can be reduced, and the entire camera operation can be slowed down.09-09-2010
20090207271Image Processor Correcting Color Misregistration, Image Processing Program, Image Processing Method, and Electronic Camera - An image processor captures image data which include at least correction object color components and reference color components and has one kind of color component per pixel. The image processor acquires or detects information about positional shifts of the correction object color components and corrects positional shifts of correction object color components. In this correction, image structures lost from correction object color components are compensated for by image structures extracted from reference color components.08-20-2009
20100225781IMAGE PROCESSING DEVICE, IMAGE PROCESSING METHOD, AND IMAGING DEVICE - A pixel-interpolation processing unit generates a sensitivity level value of an insufficient color component according to interpolation processing of image signals. A sensitivity level value of an insufficient color component in a pixel of attention is calculated, according to an arithmetic operation corresponding to an acquired color component of the pixel of attention, by assuming a geometric figure including sensitivity level values of acquired color components as vertexes. As the geometric figure, the same figure is used irrespectively of which color component the acquired color component is.09-09-2010
20110109767IMAGE CAPTURE APPARATUS AND IMAGE CAPTURING METHOD - An image capture apparatus including: an image capturing unit; a light emitting unit; a first image capture controller configured to control the image capturing unit to capture a plurality of images at a first timing; a second image capture controller configured to control the image capturing unit to capture an image under a capturing condition illuminated by the light emitting unit at a second timing that is either directly before or directly after the first timing; an addition combination section configured to positionally align the images captured under control by the first image capture controller and to perform an addition combination on the aligned images to generate a combined image; and a combination section configured to combine the combined image generated by the addition combination section with the image captured under control by the second image capture controller.05-12-2011
20100238316APPARATUS AND METHOD FOR CLASSIFYING IMAGES - An image classification apparatus and method for Automatic White Balance (AWB) are provided. An input image is divided into blocks including pluralities of pixels. A hue value and a chroma value are calculated for each of the blocks. A color-changed block is detected by calculating, for each one of the blocks, differences between the hue and chroma values calculated for all blocks adjacent to the one of the blocks and the hue and chroma values calculated for the one of the blocks. A hue variance and a chroma variance are calculated for the entire input image if a number of the detected color-changed blocks is greater than or equal to a first threshold. The input image is determined as a non-monochromatic image, if the hue variance is greater than or equal to a second threshold or the chroma variance is greater than or equal to a third threshold.09-23-2010
20110058064IMAGING DEVICE, IMAGE PROCESSING METHOD, IMAGE PROCESSING PROGRAM AND SEMICONDUCTOR INTEGRATED CIRCUIT - A line-by-line filter process is performed to extract luminance data and color carrier data from an original image (i.e., a CCDRAW image) obtained from a single-sensor color imaging element, without separating the original image into R, G, and B data corresponding to a Bayer array. A color difference data demodulation process and a median noise removal process are performed with respect to the color carrier data to obtain color difference data. Band limitation filter processes having different characteristics are performed with respect to the luminance data and the color difference data, respectively. Moreover, separate resizing processes are performed with respect to the luminance data and the color difference data, respectively. A modulation process is performed to convert the resized color difference data to color carrier data. A color array reproduction process is performed to recombine the color carrier data and the resized luminance signal.03-10-2011
20100128142IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND STORAGE MEDIUM STORING IMAGE PROCESSING PROGRAM - An image processing apparatus comprises a white balance setting unit that performs a setting of white balance correction processing on an image data, a white balance correction unit that performs white balance correction processing corresponding to the setting by the white balance setting unit on each of a plurality of RAW image data obtained in a photography operation, and an image synthesizing unit that generates synthesized image data by synthesizing a plurality of image data subjected to the white balance correction processing.05-27-2010
20110176029Multispectral and Colorimetric Imaging System - Methods and apparatus enable capture of images of a scene in response to various spectral distributions of light, as well as processing of the captured images to adjust them and, in the case of particular sets of spectral distributions, to derive images accurately representing the colors of the scene.07-21-2011
20100220211PHOTOGRAPHING SYSTEM FOR PERFORMING COLOR CORRECTION OF AN IMAGE OF A SUBJECT USING SPECTROSCOPIC INFORMATION OF THE SUBJECT - A photographing system for photographing a subject includes a color information detecting section for detecting color information of the subject, a color image capturing section for capturing a color image of the subject, and a color correcting section for performing color correction of a color image captured by the color image capturing section from corresponding position information of the color information detecting section and the color image capturing section, so as to enable highly accurate color correction.09-02-2010
20090256929COLOR PROCESSING APPARATUS, IMAGE PROCESSING APPARATUS, AND METHOD THEREFOR - A first image obtained by capturing white paper placed under an illuminant having known illuminant information using an image capturing device is input together with identification information of the illuminant, and illuminant information of the illuminant having the known illuminant information is obtained together with the identification information of the illuminant. A table is generated by associating a chromaticity of the first image with the obtained illuminant information based on the identification information. A second image obtained by capturing the white paper placed under an illuminant having unknown illuminant information using the image capturing device is input, and illuminant information of the illuminant having the unknown illuminant information is estimated from a chromaticity of the second image by referring to the table.10-15-2009
20090073282IMAGING APPARATUS AND IMAGING METHOD - First YUV data produced from a pixel output in which one RAW-RGB data is read out from an SDRAM and is compensated in a dynamic range expansion compensating section of a YUV converting section and second YUV data produced from a pixel output which is equal to or more than a predetermined saturation level without performing a compensation process in the dynamic range expansion compensating section are loaded in a YUV compositing section, and then third YUV data is produced by compositing brightness data taken out from the first YUV data and color difference data taken out from the second YUV data.03-19-2009
20090073281IMAGE SENSOR - An image sensor includes a plurality of pixels having a plurality of color sensitivity characteristics and a mixing portion for mixing charges stored in a plurality of the pixels having the same color sensitivity characteristic provided adjacent to a plurality of the pixels having the same color sensitivity characteristic.03-19-2009
20130128074DISPLAY UNIT, IMAGE SENSING UNIT AND DISPLAY SYSTEM - A host unit 05-23-2013
20090115869PHOTOGRAPHING APPARATUS AND PHOTOGRAPHING METHOD - Disclosed is a photographing apparatus of interlace transferring type comprising a photographing device which carries out transfer of electrification of all pixels stored in the photographing device by dividing into a plurality of fields when transferring the electrification, which has a plurality of color filters and which includes a color signal of at least RGB or YeCyMgG in the transfer data of each field for transferring the electrification, an extraction unit for extracting characteristic data of an image from transferred data before processing for the image is started, a generating unit for generating control value carrying out correction of image based on the extracted characteristic data, and a photographing processing unit for processing the image by use of a control value formed by said characteristic data.05-07-2009
20110032380PRINTING SYSTEM AND METHOD - Color charts each formed from patches corresponding to different colors are uniformly arranged at different positions on a print medium almost equal in size to an object to be photographed by a camera. The printed color charts are photographed by the camera one by one so that one color chart falls within the photographing range of the camera while keeping the distance between the camera and the print medium constant, acquiring photographing data. Under the same conditions, parts of the object are photographed one by one so that a part of the object at the same position as the position of one photographed color chart on the print medium falls within the photographing range of the camera, acquiring photographing data. Color coordinate values are acquired from the photographed color charts. By using the values, the color of the acquired photographing data is converted. The printing apparatus prints the converted data.02-10-2011
20120033100IMAGE CAPTURING DEVICE AND IMAGE CAPTURING METHOD - One of objects of the invention is to provide an image capturing device and an image capturing method, which is capable of capturing an image of the target at the proper angle by a simple device configuration. An image capturing device of the present invention includes: a housing; an image capturing unit capturing an image of a target; an image display unit that is capable of displaying the image; a position detection unit detecting a position of the housing; and an image correction unit correcting an original image acquired from the image capturing unit based on the position detected by the position detection unit, when a preview image of the captured image is displayed on the image display unit.02-09-2012
20080278600Camera Apparatus - It is an object of the present invention to provide a camera apparatus that can take images over a long period of time while automatically controlling, in white balance, the images. The camera apparatus comprises image providing means 11-13-2008
20090002518IMAGE PROCESSING APPARATUS, METHOD, AND COMPUTER PROGRAM PRODUCT - An image processing apparatus and method capable of improving illuminant estimation accuracy and performing a stable white balance correction. A specific subject detection unit detects a specific subject having a specific color from assigned image data. A specific chromaticity calculation unit calculates a specific chromaticity from data representing the specific color of the specific subject. Then, a standard chromaticity that approximates to the calculated specific chromaticity is determined from standard chromaticities. A chromaticity difference calculation unit calculates one or more sets of chromaticity difference information representing a chromaticity difference from the determined standard chromaticity to the calculated specific chromaticity. A white chromaticity correction unit obtains one or more white chromaticities corresponding to the selected one or more standard light sources and corrects the one or more white chromaticities by referring to the one or more sets of chromaticity difference information.01-01-2009
20100302406METHOD FOR COMPENSATING IMAGE DATA - A method for compensating image data is adapted for an image sensor. The image sensor has a plurality of photo sensors arranged in an effective region and an optical black region. The method for compensating image data includes a plurality of monochromatic light representative values S12-02-2010
20110122286IMAGE PICKUP APPARATUS AND DISPLAY CONTROL METHOD - An image pickup apparatus uses an image pickup device. A manual focus adjusting unit is configured to control a focus lens in response to a user's input operation. An edge detecting unit is configured to detect edge components from an image signal obtained by the image pickup device and to output detection levels of the detected edge components. A color signal replacement unit is configured to replace a signal of a pixel corresponding to the detection level with a predetermined color signal when the detection level satisfies a predetermined condition. A display unit is configured to display an image based on an output image signal from the color signal replacement unit.05-26-2011
20100315530METHOD FOR PERFORMING DIGITAL PROCESSING ON AN IMAGE SIGNAL OUTPUT FROM CCD IMAGE SENSORS - There is provided a method for performing digital processing on an image signal output from CCD image sensors with a CMYG color filter array, the method including converting a digital CMYG signal of 10 bits each into a first YCbCr signal of 10 bits each, by using color interpolation, converting the first YCbCr signal of 10 bits each into an RGB signal of 8 bits each by using interpolation, performing color correction on the RGB signal of 8 bits each and converting a color-corrected RGB signal of 8 bits each into a second YCbCr signal of 8 bits each in a format which complies with the ITU-601 format, encoding the second YCbCr signal of 8 bits each and converting an encoded second YCbr signal of 8 bits each into an analog video signal, and adjusting automatic exposure and automatic white balance, using the RGB signal of 8 bits each and the second YCbCr signal of 8 bits each.12-16-2010
20100165142ELECTRONIC DEVICE AND WHITE BALANCE ADJUSTMENT METHOD FOR THE ELECTRONIC DEVICE - An electronic device and a white balance adjustment method for the electronic device installed with a camera unit are provided. The camera unit is installed with a light sensor and a digital signal processor (DSP). The light sensor senses light that strikes the electronic device, to determine a source of the light, and acquires illumination parameters of the light source. The DSP adjusts white balance settings of the camera unit according to the illumination parameters, and converts an image of an object captured by a charge coupled device into a user recognizable image. The user recognizable image is displayed on a display device of the electronic device.07-01-2010
20090066805VIDEO CAMERA - An image sensor has an imaging surface irradiated with an optical image of an object scene, and repeatedly generates an object scene image. A CPU repeatedly determines whether or not a specific variation exceeding a reference is generated in the object scene captured by the image sensor, in parallel with a generating process of the object scene image by the image sensor. When a determination result is updated from a negative result to an affirmative result, the CPU waits for an elapse of a designated period, then, determines presence or absence of a generation of a flicker, and executes a flicker countermeasure process, as needed.03-12-2009
20090066806Image processing device, image processing method, and image processing program03-12-2009
20110109766CAMERA MODULE FOR REDUCING SHUTTER DELAY, CAMERA INCLUDING THE SAME, AND METHOD OF DRIVING THE SAME - A camera module includes an image sensor configured to convert an optical signal received through a lens into an electrical signal and generate full-size image data, an image signal processing unit configured to calibrate and output the full-size image data, a first memory unit configured to periodically receive and store the full-size image data from the image signal processing unit, a scaling unit configured to scale down the full-size image data received from the first memory unit and periodically output scaled-down image data to a display device, and an encoder configured to receive the full-size image data stored in the first memory unit, convert it into a compressed file in a predetermined format, and output the compressed file upon opening of a shutter.05-12-2011
20110025879METHOD AND APPARATUS FOR CONTROLLING A CAMERA MODULE TO COMPENSATE FOR THE LIGHT LEVEL OF A WHITE LED - A method and an apparatus enabling use of a light source emitting a light of changing intensity and changing spectrum as a flash with a camera module having a white-balance routine and an exposure routine, wherein an initial value representative of a color spectrum emitted by the light source is transmitted to the camera module, the light source is turned on, and the camera module is signaled to scan a plurality of images of the scene while the light source is turned on, allowing the white-balance and exposure algorithms to be employed with each image scanned to refine the first initial value to refine the degree of compensation employed in correcting a color and a light level in the last one of the images of the plurality of images scanned.02-03-2011
20110025878Determining the Illuminant in a Captured Scene - A method for determining an illuminant in a scene includes, applying, to sampled outputs of a sensor array used to capture the scene, a plurality of color-correction profiles, wherein each color-correction profile corresponds to a particular illuminant, thereby forming a plurality of color-corrected sampled outputs. The method further includes identifying the illuminant in the scene as corresponding to the color-corrected sampled output having the least color variance.02-03-2011
20110115941APPARATUS AND METHOD FOR BALANCING COLOR OF FLASHED IMAGE USING DEPTH ESTIMATION - Disclosed herein is an apparatus and method for balancing the color of a flashed image using depth estimation. The apparatus includes a depth value measurement unit, a region identification unit, a color impression estimation unit, and a color balancing unit. The depth value measurement unit measures the depth values of the respective regions of an image to be captured using a camera preview image. The region identification unit identifies the regions of the preview image as a region influenced by camera flash or a region not influenced by camera flash using the depth values measured by the depth value measurement unit. The color impression estimation unit estimates the color impression of actual illumination in the region not influenced by camera flash. The color balancing unit corrects the color of the region influenced by camera flash.05-19-2011
20110115942IMAGE PROCESSING DEVICE, IMAGING APPARATUS, IMAGING PROCESSING METHOD, AND PROGRAM - An image processing device includes an image correction unit which receives a synthesized image and pseudo color pixel information indicating a pseudo color pixel position included in the synthesized image and executes pixel value correction. The image correction unit selects non-pseudo color pixels as reference pixels from a reference region set in a surrounding region of the pixel to be corrected, sets a similarity weight coefficient in which a large weight is set as a pixel value of the reference pixel that is close to a pixel value of the pixel to be corrected and a pixel position weight coefficient in which a large weight is set as the pixel value of the reference pixel that is near a pixel position of the pixel to be corrected, with respect to the reference pixels, and determines a correction pixel value of the pixel to be corrected by a weighted summation process.05-19-2011
20090033762Color photographing apparatus - A proposition is to provide a color photographing apparatus capable of reducing the failure probability of white balance adjusting. For this purpose, the color photographing apparatus includes a discriminating unit calculating an accuracy of a shooting scene belonging to a specific group having a similar illumination color based on a feature vector of the shooting scene and a discriminant criterion preliminarily calculated by supervised learning, and a calculating unit calculating an adjusting value of the white balance adjusting to be performed on an image shot in the shooting scene based on the calculated accuracy and the image.02-05-2009
20100033595WHITE BALANCE ADJUSTMENT APPARATUS AND WHITE BALANCE COEFFICIENT CALCULATION METHOD - A white balance adjustment apparatus which is input image data acquired by an imager element to adjust a balance among color signals of the image data of a present frame includes an evaluation acquisition unit configured to acquire a plurality of groups of color signal data at each pixel position, as evaluation values, from the image data of the present frame and image data of at least one previous frame which is acquired before the present frame. The evaluation value acquisition unit includes an overlap area detection unit configured to detect image areas overlapping with each other between the image data of the at least one previous frame and the image data of the present frame. The evaluation values to be acquired from the image data of the at least one previous frame are selectively acquired in response to a detection result from the overlap area detection unit.02-11-2010
20110128406IMAGE PICKUP APPARATUS CAPABLE OF CORRECTING IMAGE QUALITY DEGRADATION DUE TO OPTICAL MEMBER, METHOD OF CONTROLLING IMAGE PICKUP APPARATUS, AND NONVOLATILE STORAGE MEDIUM - An image pickup apparatus capable of forming a corrected image which does not give a feeling of wrongness to a user. In the apparatus, an image pickup element photoelectrically converts an optical image to output the same as image data. A target correction value is calculated for correcting image quality degradation due to a lens unit, based on lens characteristic information and a status of the lens unit. A system controller sets a rate of change to stepwise make the current correction value closer to the target correction value, and repeatedly calculates the correction value according to the target correction value and the rate of change. The image data is corrected based on the repeatedly calculated correction value. The rate of change is changed depending on the relationship between a preceding value of the correction value calculated in the past and the target correction value.06-02-2011
20100123794SYSTEM AND METHOD FOR CAPTURING AND REPRODUCING AN IMAGE OPTIMIZED FOR CHARACTERISTICS OF A REPRODUCING APPARATUS - A system for capturing and reproducing an image may include a digital image processor which captures an image, acquires characteristics of a reproducing apparatus, processes the captured image according to the characteristics of the reproducing apparatus to obtain an optimal image, and transmits the optimal image to the reproducing apparatus. The system may also include the reproducing apparatus which may then display the optimal image and a connection unit which transmits and receives data including the characteristics of the reproducing apparatus and the optimal image between the digital image processor and the reproducing apparatus.05-20-2010
20100225780WHITE BALANCE ADJUSTMENT APPARATUS, WHITE BALANCE ADJUSTMENT METHOD, RECORDING MEDIUM STORING WHITE BALANCE ADJUSTMENT PROGRAM AND IMAGING APPARATUS - A white balance adjustment apparatus comprises an area estimation unit that estimates at least one light, source color estimation area for estimating a light source color in a photographed image, a distance calculation unit that calculates a distance of the light source color estimation area in a depth direction of the photographed image as the distance of the light source color estimation area, a chromaticity calculation unit that calculates a chromaticity of the light source color estimation area, and a white balance adjustment value calculation unit that calculates a white balance adjustment value on the basis of the distance of the light source color estimation area and the chromaticity of the light source color estimation area.09-09-2010
20110085052IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - An object is to suppress a false color and moire that occur in a high-frequency region. Color interpolation circuits of a color-difference signal generating circuit separate an image signal obtained from an image pickup device, in which a plurality of color filters are arranged in a predetermined pattern and in which pixels corresponding to the respective color filters are provided, into image signals of the respective color filters (R, G1, G2, and B), and perform an interpolation process on the image signals of the respective color filters. Then, a false color determining circuit determines whether a target region is a high-frequency region on the basis of at least any of slopes of image signals of the G1 filter and the G2 filter and a difference between the image signals of the G1 filter and the G2 filter in the target region.04-14-2011
20110211089Mobile Electronic Device Having Camera With Improved Auto White Balance - An improved mobile electronic device and camera provide an improved auto white balance system where constraints can be imposed the correlated color temperature (CCT) that is employed by the auto white balance system. For instance, if a distance between a subject and the camera is determined to exceed a threshold for closeness, the CCT can be constrained so that it is above a preset CCT that corresponds with sunrise or sunset. Other distance thresholds and the content of an image, as well as the brightness of the image, can be further employed in determining the CCT to employ.09-01-2011
20110096191COLOR-UNEVENNESS INSPECTION APPARATUS AND METHOD - A color-unevenness inspection apparatus includes: an image pickup section picking up an image of an inspection target for a color-unevenness inspection; an image generation section generating an uneven-color image by determining one or more uneven-color regions existing in the picked-up image of the inspection target obtained by the image pickup section, and by classifying unit regions included in each of the uneven-color regions into a plurality of color groups; a calculation section calculating, on the uneven-color regions in the uneven-color image, an evaluation parameter to be used in the color-unevenness inspection; a correction section making a correction to the calculated evaluation parameter in consideration of a difference of color-unevenness visibility between the color groups; and an inspection section performing the color-unevenness inspection, based on a resultant evaluation parameter obtained by the correction.04-28-2011
20110242358ELECTRONIC IMAGE PICKUP APPARATUS AND ELECTRONIC IMAGE PICKUP METHOD - An electronic image pickup apparatus comprises a color image pickup element having a plurality of drive modes including at least the first drive mode and the second drive mode. The color-conversion parameter storage section of the apparatus stores the first color-conversion parameter. The color-conversion parameter computing section of the apparatus computes from the first color-conversion parameter the second color-conversion parameter. The computation parameter storage section of the apparatus stores the computation parameter for computing the second color-conversion parameter. The color-conversion section of the apparatus converts the color data acquired by the color image pickup element in the first drive mode according to the first color-conversion parameter and the color data acquired by the color image pickup element in the second drive mode according to the second color-conversion parameter.10-06-2011
20100039528IMAGE PROCESSING DEVICE CORRECTING IMAGE DATA, IMAGE SENSOR AND IMAGE PROCESSING METHOD - An image processing device of an example of the invention comprises a section which acquires a gain value obtained by an automatic white balance process executed on image data to be processed, a section which, based on the gain value, determines a correction color matrix coefficient having a property of correcting a change in an appearance caused by a color temperature corresponding to the gain value, and a section which, based on the correction color matrix coefficient, performs a color adjustment on the image data obtained by the automatic white balance process.02-18-2010
20090322900WIRELESS DATA TRANSMITTING METHOD - A wireless data transmitted method is disclosed. Firstly, a carrier block is displayed. Then, color of the displayed carrier block is modulated in accordance with data to be transmitted. The data is transmitted by capturing an image of the displayed carrier block. The captured carrier block is recognized and the color thereof is calibrated. Finally, the transmitted data is obtained by demodulating the color of the captured carrier block.12-31-2009
20120242859OPTICAL CONTROL DEVICE, CONTROL DEVICE, OPTICAL SCOPE, AND SCANNING OPTICAL DEVICE - An optical control device is provided in a scanning optical device that applies light emitted from a light source to an observation target as spot light that is applied in a spot-like shape, and detects reflected light from the observation target while scanning with the spot light, the optical control device including an intensity enhancement section that enhances intensity of light within a specific wavelength band included in a wavelength band of white light emitted from a white light source, an irradiation section that applies specific wavelength band-enhanced white light to the observation target, the specific wavelength band-enhanced white light being white light for which intensity of light within the specific wavelength band is enhanced, and a light detection section that detects reflected light from the observation target when the irradiation section applies the specific wavelength band-enhanced white light to the observation target.09-27-2012
20110249140ELECTRONIC CAMERA - An electronic camera includes an imager. An imager repeatedly outputs an image representing a scene captured by an imaging surface. An adjuster adjusts an imaging condition by referring to any one of a plurality of adjustment references including a specific adjustment reference suitable for outdoors. A controller controls whether or not the referring by the adjuster to the specific adjustment reference should be permitted, with reference to a determined result of whether or not an average luminance of the image outputted from the imager satisfies a first condition and a determined result of whether or not a ratio of an area having a luminance deviating from a predetermined range occupying in the image outputted from the imager satisfies a second condition.10-13-2011
20100053366Device and method for image processing, program, and imaging apparatus - An image processing device includes a white balancing unit configured to perform white balancing on an image signal within a pull-in frame defined by the color temperature of a light source to output the resultant signal, and a control unit configured to, when the white balancing unit performs white balancing on an image signal obtained by capturing an image of a subject illuminated by light emitted from a light emitting device, adjust a region of the pull-in frame on the basis of color information of a light emission signal output from the light emitting device.03-04-2010
20110176030WHITE BALANCE CORRECTION INCLUDING INDICATIVE WHITE COLOR DETERMINATION BASED ON REGIONS IN A DIVIDED IMAGE - A white balance correction apparatus may include a dividing unit, a white evaluation unit, a white balance correction unit, and a camera orientation discrimination unit. The dividing unit divides an image into a plurality of divided areas. The white evaluation unit determines whether image data within every divided area is indicative of a color white according to white detection regions in a color temperature range defined based on a position of each divided area in the image. The white balance correction unit performs a white balance correction based upon image data determined to be indicative of the color white. The camera orientation discrimination unit discriminates orientation of a camera. In accordance with the discriminated orientation, the white evaluation unit changes a combination of position of each divided area and condition used.07-21-2011
20110176028IMAGE-CAPTURING DEVICE, IMAGE-CAPTURING METHOD AND STORAGE MEDIUM STORING IMAGE-CAPTURING PROGRAM - It is determined that a dynamic range of an image is to be widened when a subject lightness value is equal to or lower than a lightness value upper limit which is greater than a predetermined lightness value provided that at least either the subject lightness value is equal to or greater than the predetermined lightness value or that an image-capturing frame rate is equal to or higher than a predetermined frame rate. When a determination to widen the dynamic range is made, synthetic image data is generated by combining image data in a plurality of frames captured over varying exposure times. Then, the synthetic image data is displayed or recorded.07-21-2011
20100134649SIGNAL PROCESSOR - A signal processor capable of extracting evaluated values used for automatic control more appropriately, including: a feature detection unit which detects a feature change position of any target pixel and its peripheral pixels in an input picture signal; a hold unit which holds the position information; a region creation unit which creates a region by excluding the held positions from an evaluated value extraction region; and an evaluated value extraction unit which extracts evaluated values in accordance with the region; wherein unnecessary portions different in feature from the periphery are extracted in accordance with any pixel unit by detection of the feature change position so that the feature change position is excluded from the evaluated value extraction region.06-03-2010
20110096192IMAGING DEVICE, METHOD FOR CONTROLLING IMAGING DEVICE AND PROGRAM PRODUCT - An imaging device includes an imaging element which obtains an image, and an imaging sensor processing unit which resets an exposure of the imaging element by a feedback control based on an image data obtained by the imaging element. The imaging sensor processing unit continuously executes, by pipeline processing, the following processing of setting an exposure time of the imaging element in a first frame just after start-up of the imaging device, making the imaging element accumulate light with an exposure time set at a former frame in a second frame, and outputting the image data by applying a gain set by the second frame in a third frame.04-28-2011
20110096190AUTOMATIC WHITE BALANCING FOR PHOTOGRAPHY - Embodiments of the claimed subject matter are directed to methods for automatic white balancing in an image-capture device. In one embodiment, given an estimated illuminant color (e.g., derived from the Gray World method), a more optimal illuminant color can be found by projecting this point to a plot of common illuminants to determine the closest point on the plot of common illuminants. Once the closest point of the plot of common illuminants is derived, the actual image (e.g., pixel) data of the scene is adjusted by the value of the closest point on the plot of common illuminants so that the light is normalized for the scene.04-28-2011
20110249141METHOD AND APPARATUS FOR COLOR CORRECTION OF COLOR DEVICES FOR VARIOUS OPERATING CONDITIONS - Methods and apparatuses for color correction of color device for various operating conditions. In at least one embodiment of the present invention, operating under a current condition, a color correction operation that is derived from color correction operations defined for other conditions is performed on the color data. In another embodiment, a device profile for managing colors for a color device operating under one condition is interpolated from the device profiles for the color device operating under other conditions (e.g., based on the input received from a user interface according to the perception of the user or based on the measurement of a sensor). The interpolation can be based on the input received from a user interface according to the perception of the user or it can be based on the measurement of a sensor or a set of sensors. Various operating conditions for a color device (e.g., a scanner, a camera, a video camera, a printer, a display device such as a CRT monitor or an LCD display panel, a television set, or others) include chromaticity and illumination of ambient light, background color for a display device, characteristics of print media for a printer, humidity, temperature, pressure and ink level for an ink jet printer, the age of a light source for a scanner, and others.10-13-2011
20110249139Imaging control device and imaging control method - A imaging control device includes a scene recognition section which recognizes scenes showing a subject by analyzing obtained image data, a display section which displays the obtained image data, an imaging mode selection section which prepares a plurality of imaging modes where a parameter which adjusts image characteristics according to each scene is set in advance and which automatically selects an imaging mode corresponding to the recognized scene from a plurality of imaging modes, a first operation section which generates a first operation signal which locks the imaging mode at a current imaging mode during the operation of automatically selecting the imaging mode, and a second operation section which generates a second operation signal which adjusts a portion of the parameter in a state where the imaging mode is locked, where an adjustment range using the second operation section is within a range limited by the locked imaging mode.10-13-2011
20120120278IMAGING APPARATUS, IMAGING METHOD, AND COMPUTER-READABLE RECORDING MEDIUM - An imaging apparatus including an imaging unit that captures images of a photographic subject and continuously generates electronic image data; a display unit that displays, at a predetermined display frame rate, images corresponding to the image data generated by the imaging unit; an image processing unit that either performs a first-type special effect operation that can be displayed at the predetermined display frame rate or performs a second-type special effect operation that can be displayed at a faster display frame rate than the predetermined display frame rate; an operation input unit that receives input of a change instruction signal that provides an instruction for changing a combination of image processing operations during a special effect operation performed by the image processing unit; and a control unit that instructs the image processing unit to switch the special effect operation from the first-type special effect operation to the second-type special effect operation.05-17-2012
20120120277Multi-point Touch Focus - A camera includes a lens arranged to focus an image on an image sensor and a touch sensitive visual display for freely selecting two or more regions of interest on a live preview image by touch input. An image processor is coupled to the image sensor and the touch sensitive visual display. The image processor displays the live preview image according to the image focused on the image sensor by the lens. The image processor further receives the selection the regions of interest and controls acquisition of the image from the image sensor based on the characteristics of the image in regions that correspond to at least two of the regions of interest on the live preview image. The image processor may optimize sharpness and/or exposure of the image in at least two of the regions of interest. The image processor may track movement of the selected regions of interest.05-17-2012
20090027515IMAGE PICKUP APPARATUS - An image pickup apparatus includes: an image pickup unit capturing a subject; an image generation unit performing image processing by different parameter values of a same parameter on an original image captured by the image pickup unit, and generating a plurality of images; and a multi-window display unit displaying the plurality of images generated by the image generation unit or the original image and the plurality of images generated by the image generation unit. The parameter is exposure correction or white balance.01-29-2009
20120200734INCREASED LOW LIGHT SENSITIVITY FOR IMAGE SENSORS BY COMBINING QUANTUM DOT SENSITIVITY TO VISIBLE AND INFRARED LIGHT - A camera unit generates a processed digital image by augmenting color image data with infrared image data according to the level of ambient light exposure. The camera has an ambient light sensor that detects the level of ambient light in the camera unit and an image sensor that provides image data. One or more quantum dot layers may be included in the image sensor. A camera controller adapts the camera unit for operation in different modes that are selectable based on the levels of detected ambient light. The image data is processed into a digital image, according to the selected mode of operation for the camera unit, using color image data only when the level of ambient light is high, but augmenting the color image data with infrared image data when the level of ambient light is low to increase the color luminance of the final processed digital image.08-09-2012
20120200732IMAGE PROCESSING APPARATUS AND METHOD - A first white balance correction amount is calculated according to similarity between image data acquired by an image pickup unit and past image data acquired in the past, and a first white balance correction is performed on the image data according to the first white balance correction amount. A luminance correction amount and a color correction amount are calculated according to similarity between the corrected image data and the past image data corrected in the first white balance correction. Using one of them, the first white balance correction amount is corrected thereby to obtain a second white balance correction amount. According to the obtained correction amount, a second white balance correction, a luminance correction, and a color correction are performed on the image data acquired by the image pickup unit.08-09-2012
20110050949Color Adjusting Apparatus - A color adjusting apparatus includes a first holder. A first holder holds a plurality of first color adjusting values respectively corresponding to a plurality of representative colors. An adjuster adjusts a color of an original image by referring to the plurality of first color adjusting values held by the first holder. An outputter outputs an image having the color adjusted by the adjuster, toward a display device. A first detector detects a color space adopted by the display device in association with the adjusting process of the adjuster. A first setter sets magnitudes of the plurality of first color adjusting values held by the first holder, to magnitudes corresponding to the color space detected by the first detector.03-03-2011
20110001843IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND ELECTRONIC CAMERA - An image processing apparatus comprising: an input visual environment acquisition unit that acquires a shooting scene viewing condition at the time of shooting an image, an output visual environment acquisition unit that acquires a shot image viewing condition, a converting unit that converts the image using a predetermined color appearance model based on the shooting scene viewing condition acquired by the input visual environment acquisition unit and the shot image viewing condition acquired by the output visual environment acquisition unit, and a correction unit that corrects a parameter of the color appearance model used by the converting unit by using at least one of a shooting condition of the image and a scene judging result based on at least one of the image and the shooting conditions of the image.01-06-2011
20110001842METHOD OF AND APPARATUS FOR PROCESSING IMAGES - A method suitable for processing a digital image is disclosed. The method comprises, for each picture element of the digital image, processing an achromatic intensity level of the picture element using a first adaptation procedure featuring a first effective saturation function of the achromatic intensity, to provide a first intermediate intensity level. The method further comprises processing the achromatic intensity level using a second adaptation procedure featuring a second effective saturation function of the achromatic intensity, to provide a second intermediate intensity level. The method further comprises combining the first and the second intermediate intensity levels to provide a new achromatic intensity level associated with the picture-element.01-06-2011
20120200731COLOR RESTORATION APPARATUS AND METHOD - A color restoration apparatus is provided. The color restoration apparatus including a color correction gain generator configured to compensate for a first broad-band pixel value of a first image, which is acquired from a single-exposure environment, based on a saturation gain for compensating for a difference between a time of the saturation of a broad-band pixel value and a time of the saturation of a narrow-band pixel value, and to calculate a color correction gain based on a first narrow-band pixel value of the first image and the compensated first broad-band pixel value, and a color corrector configured to compensate for a second broad-band pixel value of a second image, which is acquired from a dual-exposure environment, based on a color gain difference compensation value for compensating for a difference between color gains applied to the second image, and to calculate a restored narrow-band pixel value based on the second narrow-band pixel value, the compensated second broad-band pixel value, and the color correction gain.08-09-2012
20100097491Compound camera sensor and related method of processing digital images - In one embodiment, a light sensor includes four cell arrays, one for each color of the Bayer pattern, and four lenses each focusing the light coming from the scene to be captured on a respective cell array. The lenses are oriented such that at least a second green image, commonly provided by the fourth cell array, is both horizontally and vertically shifted (spaced) apart by half a pixel pitch from a first (reference) green image. In a second embodiment, the four lenses are oriented such that the red and blue images are respectively shifted (spaced) apart by half a pixel pitch from the first or reference green image, one horizontally and the other vertically, and the second green image is shifted (spaced) apart by half a pixel pitch from the reference green image both horizontally and vertically.04-22-2010
20090244316AUTOMATIC WHITE BALANCE CONTROL - A system for performing automatic white balance (AWB) control in which the limited white area (200) is clearly defined by a formula which fits exactly to the black body radiator curve (202) in at least two domains, the formula being a function of those two domains. The function is then offset to the left and/or right to define the limited white area (200) around the black body radiator curve (202). No calibration at the time of manufacture is required, and no permanent memory to store respective parameters and measurements for automatic white balancing is necessary. The resultant limited white area (200) can be used provided a color matrix is employed beforehand, in order to transform the color space of the image sensor to a known color space. In this known color space, the exact location of the black body radiator curve is known, and therefore the above-mentioned formula can be used to form the LWA detection region around it.10-01-2009
20120200733IMAGE PROCESSING APPARATUS, IMAGING APPARATUS, COMPUTER READABLE STORAGE MEDIUM STORING IMAGE PROCESSING PROGRAM, AND IMAGE PROCESSING METHOD - In order to effectively and efficiently perform noise reduction by smoothing, an image processing apparatus of the present invention includes an image inputting part inputting an image in which a first pixels and a second pixels indicating mutually different color components are included and at least the second pixels are arranged at discrete positions, a color estimating part estimating first color component data at the second pixels based on first color component data of the first pixels, a calculating part calculating color-difference data at the second pixels based on the first color component data at the second pixels and second color component data of the second pixels, a smoothing part performing smoothing processing on a discrete color-difference image formed of the color-difference data being calculated at the second pixels, and a color-difference estimating part estimating color-difference data at pixels other than the second pixels on the input image.08-09-2012
20100321523METHOD, APPARATUS, AND SYSTEM FOR SELECTING PIXELS FOR AUTOMATIC WHITE BALANCE PROCESSING - A method, apparatus, and system that use a white balance operation. A selecting process is applied to each pixel selected and considered for automatic white balance statistics to determine the distance from the selected pixel to a white curve defined in a white area corresponding to an image sensor.12-23-2010
20100321522IMAGING APPARATUS, SIGNAL PROCESSING METHOD, AND PROGRAM - Output signals (pixel values) output from a sensor unit in which image sensors having six kinds of color filters with different colors are arranged are classified in association with three stimulus values, a color number is reduced by performing addition processing of the output signals (pixel values) in each classification to generate an image signal of three bands, and the generated image signal is used for the preview display so that a photographed image can be checked easily and immediately.12-23-2010
20100321521Method of automatic white-balance calibration - Provided is a method of automatic white-balance calibration. The method firstly uses a predefined gain. Each color value for pixels of an inputted image is calculated. A number of the placements representing the pixels within each gray region of a color space are then obtained. Next, a new gain is obtained by linearly combining those placements. Further, in order to overcome a possible chromatic aberration on account of the overlapping regions in the color space, the method introduces a specific deletion ratio to delete a portion of placements positioned in the overlapping regions. Therefore the method provides a proper image. Furthermore, users may decide a level of the chromatic aberration by adjusting the predefined gain.12-23-2010
20080204572Proximity-Based System and Method for Reducing Gain Imbalance in a Bayer Pattern and Digital Camera Employing the Same - A proximity-based system for, and method of, reducing Gr-Gb gain imbalance and a digital camera incorporating the system or the method. In one embodiment, the system includes: (1) a sensor configured to provide a input Bayer pattern array containing amplitudes corresponding to Gr and Gb cells and (2) a processor coupled to the sensor and configured to (2a) compute for at least some of the Gr and Gb cells: closeness measures for pluralities of adjacent, same-type cells, weights for pluralities of adjacent, opposite-type cells based on the closeness measures and weighted averages of the pluralities of the adjacent, opposite-type cells based on the weights and (2b) use the weighted averages to form an output Bayer pattern in which the Gr-Gb gain imbalance is reduced.08-28-2008
20110164145AUTOMATIC ILLUMINANT ESTIMATION AND WHITE BALANCE ADJUSTMENT BASED ON COLOR GAMUT UNIONS - A system for estimating an illuminant of a scene that was captured by an input image includes a control system that generates an input gamut that includes the input colors for the input image. Further, the control system compares the input gamut to an illuminant database that includes separate information from a gamut of observable colors for a plurality of possible illuminants to estimate the possible illuminant. Each illuminant can be represented by a separate illuminant gamut. Moreover, each gamut can be organized as a matrix. Additionally, the control system can combine the input gamut with each of the illuminant gamuts to generate a separate union gamut for each of the possible illuminants. The control system can compare the union gamut and the corresponding illuminant gamut for each possible illuminant to estimate the illuminant. After estimating the possible illuminant, the control system performs color correction on the input image.07-07-2011
20120274805Color Correction for Static Cameras - Methods and apparatus are provided for color correction of images. One or more colors in an image obtained from a static video camera are corrected by obtaining one or more historical background models from one or more prior images obtained from the static video camera; obtaining a live background model and a live foreground model from one or more current images obtained from the static video camera; generating a reference image from the one or more historical background models; and processing the reference image, the live background model, and the live foreground model to generate a set of color corrected foreground objects in the image. The set of color corrected foreground objects is optionally processed to classify a color of at least one of the foreground objects.11-01-2012
20110261224Digital camera and storage medium for image signal processing for white balance control - A CCD captures a subject image having passed through a taking lens and an image processing circuit performs various types of image pre-treatment including gamma correction and white balance on image data corresponding to n lines×m rows output by the CCD. The image processing circuit also performs format processing on the data. The data are then compressed at a compression circuit. The white balance adjustment and the like are implemented in line sequence at a line processing circuit which engages in signal processing in pixel sequence in units of individual lines in the output from the CCD. The image data having undergone the pre-treatment are then subjected to format processing prior to JPEG compression, at a block processing circuit that engages in signal processing in units of individual blocks each ranging over an n×m (N>n, M>m) block. In other words, the signal processing is performed in block sequence.10-27-2011
20110261225IMAGE CAPTURING APPARATUS, METHOD OF DETECTING TRACKING OBJECT, AND COMPUTER PROGRAM PRODUCT - An image signal processing unit partitions a frame image into a plurality of partitioned blocks and calculates for each partitioned block luminance information, color information, contrast information, and a motion vector quantity. A grouping unit groups the partitioned blocks into an image area of the same object based on the luminance information and the color information of each partitioned block. A moving amount calculating unit calculates a moving amount of an object contained in a grouped image area based on the motion vector quantity of each partitioned block, a detection value of a motion detection sensor, and a focal length calculated by a focal length calculating unit. A tracking object selecting unit selects an object in the image area of the highest contrast value as a tracking target object out of objects each having a moving amount exceeding a threshold value.10-27-2011
20120147212IMAGING APPARATUS AND METHOD OF CONTROLLING IMAGING APPARATUS - An imaging apparatus includes: an imaging optical system having an aperture; an imaging device that outputs an image signal; an electronic shading processing portion that adds an electronic shading to a photographic image corresponding to the image signal; and a control portion which determines whether or not an optical shading can be added to the photographic image based on the imaging condition, the control portion controlling the aperture and adding the optical shading when the optical shading can be added, and the control portion controlling the electronic shading processing portion and adding the electronic shading when it is difficult to add the optical shading.06-14-2012
20120147210IMAGE SIGNAL PROCESSING DEVICE AND SOLID-STATE IMAGING DEVICE - According to the embodiment, a feedback clamp circuit is included, which increases or decreases a clamp parameter so that a black level approaches a target value while controlling a change amount of the clamp parameter, which sets the black level, based on the black level read out from OB pixels.06-14-2012
20110254975IMAGE PICKUP APPARATUS - An image pickup apparatus such as a video camera has the capability of automatic white balance control whereby the white balance is quickly adjusted for any object even just after an operator has turned on a power supply. An image pickup element converts an optical image of an object into an electrical image signal. The image signal is applied to a signal processing circuit and separated into a luminance signal and color signals. The separated color signals or the R and B signals are amplified by gain control circuits under the control of the correction signals supplied by a correction signal computing part, and then applied to a color-difference signal forming circuit which in turn produces color-difference signals (R-Y) and (B-Y). An encoder circuit generates a television signal in the standard form from the above color-difference signals and the luminance signal. In this processing, the white balance is adjusted according to a white balance control signal generated on the basis of information about a state of illuminance onto an object picked up last time and stored in a data storing part.10-20-2011
20110134275SKIN TONE DETECTION IN A DIGITAL CAMERA - Disclosed is a method for processing sensor data in an image processor that implements at least one image enhancement process, the method comprising: a) performing a skin tone detection operation to identify skin tone areas in the sensor data; b) selectively modifying at least one image enhancement process for the identified skin tone areas; and c) applying the at least one modified image enhancement process to the identified skin tone areas.06-09-2011
20100214433IMAGE PROCESSING DEVICE - The present invention is an image processing device that certainly restores a non-linearly corrected image. A processing unit 4 restores a non-linearly corrected original image or an original image without being non-linearly corrected from a non-linearly corrected initial image data which has been fluctuated like deterioration and was non-linearly corrected by a predetermined way. The processing unit 4 repeats processing using any of fluctuation-factor information data which becomes a factor of fluctuating an image, the initial image data which is non-linearly corrected and the initial image data without being non-linearly corrected which is not non-linearly corrected and obtained by performing inversely non-linear correction against the non-linearly corrected initial data. The processing unit gradually generates any one of the non-linearly corrected initial data and comparison data which is approximated to the initial image without being non-linearly corrected and gradually approximates the energy of the non-linearly corrected initial data to zero. The processing unit performs basic processing of forming the original image data or the non-linearly corrected original image data.08-26-2010
20100214436METHOD OF ADJUSTING WHITE BALANCE OF IMAGE, RECORDING MEDIUM HAVING PROGRAM FOR PERFORMING THE METHOD, AND APPARATUS APPLYING THE METHOD - A white balance adjusting apparatus and method generate a display image by performing display image signal processing to an input image, specify an area of the display image, output at least two sample images by applying at least two types of correction gains to the area of the display image, and apply the correction gain that is applied to one of the at least two sample images to the input image. Accordingly, a white subject does not have to be searched for to adjust white balance, and an image having a color sensitivity desired by the user can be obtained by performing white balance on colors other than white.08-26-2010
20100214434APPARATUS AND METHOD FOR ADJUSTING WHITE BALANCE OF DIGITAL IMAGE - A method and an apparatus are provided for adjusting white balance of a digital image. An input image is converted into a YCbCr color space. White pixels of the converted input image are detected by determining whether each pixel of the converted input image is included in a preset region of the YCbCr color space. A gain of each channel is calculated from averages of R, G and B values of the detected white pixels. White balance adjustment is performed by applying the calculated gain of each channel to each pixel of the input image.08-26-2010
20100066857Methods, systems and apparatuses for white balance calibration - Methods, systems and apparatuses for white balance calibration. A calibration correction matrix is specifically calibrated for each individual imager, thereby providing improved automatic white balance performance. The individual imager calibration corrects for variation of the spectral response among different imagers. The calibration correction matrix is placed before the gray checker module, which analyzes the chromaticity of the image pixels and supplies resulting statistics to the automatic white balance decision engine for use in automatic white balance operations. The calibration correction matrix may be implemented as a 3×3 matrix.03-18-2010
20100194916IMAGE CAPTURE APPARATUS, METHOD OF CONTROLLING THE SAME, AND PROGRAM - An apparatus includes an image capture unit which includes an image sensor in which pixels for photoelectrically converting an object image are two-dimensionally arrayed in correspondence with color filters of a plurality of colors, and generates an image signal, a reducing unit which reduces the image signal output from the image capture unit to generate a reduced image, an image processing unit which performs development processing for the reduced image to obtain a first developed image containing luminance components and color difference components and performs development for the image signal output from the image capture unit to obtain a second developed image containing luminance and color difference components, an enlargement unit which enlarges the first developed image to the same size as that of the second developed image, and a composition unit which performs composition of the second developed image and an enlarged image.08-05-2010
20100194917IMAGING APPARATUS AND LIVE-VIEW IMAGE DISPLAY METHOD THEREOF - A digital camera has a live-view image shooting mode in which a process of shooting a subject, generating image data from imaging signals acquired by the shooting, and displaying a live-view image based on the image data on a display section is repeatedly performed. The digital camera includes a solid-state imaging device 08-05-2010
20100194915METHOD AND APPARATUS FOR PROCESSING COLOR VALUES PROVIDED BY A CAMERA SENSOR - In a method suitable for processing colour values provided by a camera sensor comprising pixels of different colours, values of a first colour at positions of pixels of a second and a third colour are interpolated (08-05-2010
20110187892IMAGE CAPTURING APPARATUS, IMAGE CAPTURING METHOD, AND PROGRAM - An object of this invention is to perform, for a photographed image, image processing which reflects the intention of the user without photographing again. In order to achieve this object, photographing data from an image sensor is temporarily stored in a memory, and an image of the photographing data as a result of digital development processing is displayed. When it is determined from the displayed image that the parameters of various image processes in digital development processing are not proper for the photographed image, the parameter settings are corrected again. Then, operation of reading out photographing data from the memory and performing digital development processing again is executed a necessary number of times. When an image quality intended by the photographer is obtained, the photographing data is recorded on a recording medium.08-04-2011
20110187891Methods and Systems for Automatic White Balance - A method for automatic white balance (AWB) in a digital system is provided that includes applying predetermined flash red, blue, and green gain values stored in the digital system to white balance a digital image when a flash is used to capture the digital image, and applying computed red, blue, and green gain values to white balance a digital image when the flash is not used to capture the digital image. Another method for AWB is provided that includes computing red, blue, and green gain values for white balancing a digital image, adjusting the computed red, blue, and green gain values with respective predetermined flash red, blue, and green gain adjustment values when the flash is used to capture the digital image, and applying the adjusted red, blue, and green gain values to white balance the digital image.08-04-2011
20110187890IMAGE PROCESSING APPARATUS - An image processing apparatus comprises an estimation unit which estimates, from color distribution information of an image obtained by capturing an object, a depth of water at which the captured object is positioned, and a white balance control unit which performs white balance control along an axis different from a black body radiation axis in accordance with the depth of water estimated by the estimation unit.08-04-2011
20110149110CAMERA SYSTEM AND IMAGE PROCESSING METHOD - Disclosed herein is a camera system including: a camera section including a subband dividing section configured to resolve image data of a color whose pixel positions are alternately shifted from each other into subband images, and a first transmission interface section configured to convert the subband images into a predetermined image signal, and output the image signal via a transmission line; and a camera control section including a second transmission interface section configured to convert the image signal input via the transmission line into the subband images, and an image decompressing section configured to decompress the subband images into the image data and synthesize the subband images into the image data output from the image pickup element.06-23-2011
20110149109APPARATUS AND METHOD FOR CONVERTING COLOR OF TAKEN IMAGE - A method for correcting color of an action image taken together with a reference image having a color reference plate includes activating a predetermined correction window for correction of the action image; displaying the action image and at least one correction window for color correction of the action image on the correction window; creating a lookup table, when at least one is selected from references displayed on the correction window, for converting respective pixels in conformity with the selected data; and correcting color of the action image using the created lookup table.06-23-2011
20090174791Image processor, image processing method and recording medium - A correction signal capturing section of a skin color correction processing section of an image processor captures WB-corrected R07-09-2009
20090174790Digital photographing apparatus and method for controlling the same - A digital photographing apparatus which, when operating in a manual mode for externally manipulating and setting photographing variables, determines when a photo is to be taken, and if photographing conditions are changed from those which occurred when photographing variables were set, notifies a user of the change so that a photo can be taken with desired photographic variables. A method of controlling a digital photographing apparatus to perform these operations is also provided.07-09-2009
20100026836Imaging Apparatus and Imaging Method - It is an object of the present invention to provide an imaging apparatus and an imaging method which enable various functions using face detection to be individually controlled in accordance with scene recognition results and which achieve more favorable imaging and image processing. To achieve the object, in an aspect of the present invention, information on a photographic scene is acquired to recognize the scene and to detect whether or not a face exists in the photographic scene, and various controls are performed based on the scene recognition result and the face detection result. That is, when performing various controls using face detection such as face frame display, face AE, face AF, face AWB, face tonal correction, and the like, it is now possible to individually control how such controls are to be performed based on a scene recognition result and achieve more favorable imaging and image processing in accordance with the scenes.02-04-2010
20100026835IMAGE SENSING APPARATUS AND METHOD FOR CONTROLLING THE SAME - Using correction values obtained based on image signals outputted from an image sensing unit by controlling the image sensing unit in the first mode, in which image signals are read out from a first photoelectric conversion element group arranged in a first region of an image sensing plane, the image signals outputted from an image sensing apparatus by controlling the image sensing unit in the second mode, in which image signals are read out from a second photoelectric conversion element group arranged in a second region that is smaller than the first region of the image sensing plane, are subjected to a white balance process.02-04-2010
20090147099METHOD OF PERFORMING AUTO WHITE BALANCE IN YCBCR COLOR SPACE - There is provided a method of performing auto white balance including: setting a plurality of sections of a whole range of a value of each of Y, Cb, and Cr in the YCbCr color space, according to a size of each value; calculating an accumulated Y, Cb, and Cr value of pixels included in each of the plurality of sections; determining effective sections according to the number of the pixels included in each of the plurality of sections; calculating a mean Y, Cb, and Cr value of pixels included in all of the effective sections by using the accumulated Y, Cb, and Cr value of each of the effective sections; calculating a mean RGB value by converting the mean Y, Cb, and Cr value into an RGB color space; and determining an RGB color gain of a Bayer image outputted from an image sensor by using the mean RGB value.06-11-2009
20100188525Perfecting the Effect of Flash within an Image Acquisition Devices Using Face Detection - Within a digital acquisition device with a built in flash unit, the exposure of an acquired digital image is perfected using face detection in the acquired image is provided. Groups of pixels that correspond to plural images of faces are identified within a digitally acquired image, and corresponding image attributes to the group of pixels are determined. An analysis is performed of the corresponding attributes of the groups of pixels. It is then determined to activate the built-in flash unit based on the analysis. An intensity of the built-in flash unit is determined based on the analysis. Alternatively based on similar analysis, a digital simulation of the fill flash is performed on the image.07-29-2010
20090207275IMAGE SENSING APPARATUS AND IMAGE PROCESSING METHOD THEREFOR - An image sensing apparatus comprising: a CCD, optical system for forming an image on the CCD; A/D converter for converting an image signal outputted by the CCD to a digital signal; color interpolator for performing color interpolation on the digital signal converted by the A/D converter and generating image data on R, G and B color planes; color space converter for converting RGB color space to YUV colorimetric system; and median filter for reducing pseudo color components, generated by the color interpolator, by controlling color difference signals U and V. By cutting high frequency components of the signal, filtered by the median filter, then thinning out YUV signals and performing JPEG compression, pseudo color components generated by color interpolation can be reduced.08-20-2009
20110050948APPARATUS AND METHOD FOR ADJUSTING AUTOMATIC WHITE BALANCE BY DETECTING EFFECTIVE AREA - An automatic white balance adjusting apparatus and method based on detection of an effective area. The automatic white balance adjusting apparatus may detect the effective area by using a color temperature, a luminance, and a correlation, and may adjust a white balance with respect to the detected effective area.03-03-2011
20110304744CALIBRATING COLOR FOR AN IMAGE - Calibrating color (such as adjusting color balance) for an image may include capturing a set of calibration images of a calibration target. The calibration target includes at least one color reference region illuminated by a light source having a distribution of frequencies that cycles over a fixed time period. The calibration images are captured over a calibration period that is greater than or equal to the fixed time period over which the distribution of frequencies cycles. Each of the calibration images is associated to a time identifier. A color balance adjustment is calculated for each of the calibration images, for forming a time-dependent color spectrum model of the color balance adjustments. The color spectrum model models changes in the light source over the fixed time period. In one embodiment, a subject image of a subject is captured for a determined exposure time. In the subject image, the subject is illuminated by the light source. Exposure time data is associated to the subject image. At least one subject color balance adjustment is calculated for the subject image from the exposure time data and the color spectrum model.12-15-2011
20100020193METHOD AND APPARATUS FOR WHITE BALANCE - A method and apparatus for white balancing. The method comprising estimating the color temperature of at least a portion of the image, wherein the color temperature estimation algorithm is based on computing histogram correlations of at least a portion of at least one reference image and at least a portion of at least one target image, and correcting the white balance of at least a portion of the image utilizing the estimated color temperature.01-28-2010
20120147211AUTO WHITE BALANCE ADJUSTMENT SYSTEM, AUTO WHITE BALANCE ADJUSTMENT METHOD, AND CAMERA MODULE - According to one embodiment, an auto white balance adjustment system includes a first color judgment gate generation unit and a second color judgment gate generation unit. The second color judgment gate generation unit defines a color-temperature range subject to a white balance adjustment for each light source. The color judgment gate switch unit switches between the first color judgment gate and the second color judgment gate, as a reference for selecting pixel data used for calculating the white balance gain.06-14-2012
20120147213White Balance Correction In A Captured Digital Image - A method for correcting white balance in a captured digital image includes storing raw sensor data representative of the captured digital image in a memory and normalizing the raw sensor data by applying an illuminant-independent shading and vignetting correction to the raw sensor data. The method continues with applying a plurality of illuminant-dependent shading and vignetting correction masks to the raw sensor data and comparing the illuminant-dependent shading and vignetting correction result with the illuminant-independent shading and vignetting correction result.06-14-2012
20120098995IMAGE PROCESSING DEVICE - An image processing device includes a storage unit, a processing unit, and a memory. The storage unit stores a dither matrix. The memory has instructions stored thereon that, when executed by the processing unit, cause the processing unit to function as: an acquiring unit that is configured to acquire an image including a plurality of pixels, each pixel having a color value; an updating unit that is configured to update a color value of at least one pixel by adding a random number to the color value; and a thresholding unit that is configured to convert the updated color value into a binary value by using the dither matrix.04-26-2012
20120044380IMAGE CAPTURE WITH IDENTIFICATION OF ILLUMINANT - Image capture of a scene in which there is an identification of an imaging property of the scene, such as the illuminant or dynamic range of the scene. An imaging assembly has a spectral response which is tunable in accordance with a capture parameter, and first and second different capture parameters are applied to the image sensor. Respective first and second images of the scene are captured. The first and second images of the scene are compared to identify an imaging property of the scene, such as the illuminant or multiple illuminants in respective ones of multiple regions in the scene. In accordance with the property identified for the scene, a third capture parameter is derived, such as to obtain color correction or white balance in accordance with each identified illuminant. The third capture parameter is applied to the image sensor, and a final image of the scene is captured.02-23-2012
20110063474WHITE BALANCE ADJUSTMENT SYSTEM FOR SOLID-STATE ELECTRONIC IMAGE SENSING DEVICE, AND METHOD OF CONTROLLING OPERATION OF SAME - A main solid-state electronic image sensing device and a subordinate solid-state electronic image sensing device are included in a digital camera. The light source is estimated from image data obtained from the main solid-state electronic image sensing device, and white balance gain conforming to the estimated light source is calculated for the purpose of white balance adjustment of the image data obtained from the main solid-state electronic image sensing device. In a case where the setting is such that white balance gain regarding image data that has been output from the subordinate solid-state electronic image sensing device conforms to the light source estimated from the image data of the main solid-state electronic image sensing device, the gain is calculated accordingly. In a case where the setting is such that white balance gain regarding image data that has been output from the subordinate solid-state electronic image sensing device conforms to a light source estimated from the image data of the subordinate solid-state electronic image sensing device, the gain is calculated in accordance with this setting. An appropriate white balance gain is performed in accordance with the main and subordinate solid-state electronic image sensing devices.03-17-2011
20110317028Image processing apparatus, image taking apparatus, image processing method and image processing program - Disclosed herein is an image processing apparatus including a color-flicker detection processing section configured to detect generation of color flickers from a plurality of images taken at different exposure times, wherein the color-flicker detection processing section: acquires a ratio of any specific one of a plurality of color signals of the taken images to another one of the color signals; obtains an evaluation value of the color flickers from the acquired ratio; and determines whether or not the color flickers have been generated on the basis of the magnitude of the evaluation value.12-29-2011
20110317027Image processing apparatus, image taking apparatus, image processing method and image processing program - Disclosed herein is an image processing apparatus including a synthesizing processing section configured to synthesize a plurality of images taken at different exposure times wherein, in processing to synthesize the taken images, the synthesizing processing section acquires a taken-image blending ratio varying in accordance with components selected from the taken images and carries out a blending process on a blend area in which pixels of the taken images are to be blended by applying the blending ratio to the blend area.12-29-2011
20110157414IMAGE'S CHROMATISM CORRECTION APPARATUS - A reference pixel is specified for a specified pixel whose (luminance) value is below a threshold, for example, in RGB data obtained by an image pickup operation. The reference pixel should be on a straight line passing through the specified pixel and a center of the image and spaced from the specified pixel by a distance depending on a reduction or expansion rate of a blue (B) component image of the optical image corresponding to an optical zoom magnification in the image pickup. Only when the B value of the specified pixel is greater than that of the reference pixel, the B value of the specified pixel is replaced with that of the reference pixel. By expanding or reducing the blue component image alone for the original RGB data, image data is obtained in which the magnification chromatism is corrected.06-30-2011
20110157413Image Pickup Apparatus and Image Pickup Method - An image pickup apparatus includes an image pickup unit that acquires a first image without a flash and a second image with the flash; a down-sampling unit that generates a third image by down-sampling the second image; a brightness difference calculator that calculates a brightness difference between the first image and the third image; a flash reflection intensity calculator that calculates a first flash reflection intensity from the brightness difference; and a white balance gain calculator that calculates a white balance gain based on the first flash reflection intensity. An image pickup method includes acquiring a first image without a flash and a second image with the flash, generating a third image by down-sampling the second image, calculating a brightness difference between the first image and the third image, calculating a first flash reflection intensity from the brightness difference, and calculating a white balance gain.06-30-2011
20110157412Photographing Apparatus and Method and Recording Medium - A photographing apparatus and method and a recording medium, the photographing apparatus including: an exposure control value calculator for calculating a first exposure control value for a first image obtained by performing non-flash photographing and a second exposure control value for a second image by performing flash photographing based on light received from a subject; a photographing unit for acquiring the first image by performing photographing based on the first exposure control value and acquiring the second image by performing photographing based on the second exposure control value; an exposure control value difference calculator for calculating an exposure control value difference that is a difference between the first exposure control value and the second exposure control value; and a subject brightness calculator for calculating a first subject brightness of the first image and calculating a second subject brightness of the second image.06-30-2011
20120002073METHOD OF DYNAMICALLY CHANGING A PARAMETER OF A FRAME - A method of dynamically changing a parameter of a frame is disclosed. An input frame is determined as a special scene or a general scene. A subsequent frame is predicted by changing the parameter of the subsequent frame according to a special-scene operation when the input frame is the special scene, and by changing the parameter of the subsequent frame according to a general-scene operation when the input frame is not the special scene. The predicted frame is determined whether to be a special scene. Accordingly, the parameter of the input frame is changed according to the special-scene operation when both the input frame and the predicted frame are the special scenes; the parameter of the input frame is changed according to the general-scene operation when both the input frame and the predicted frame are not the special scenes; and the parameter of the input frame is maintained without change when only one of the input frame and the predicted frame is the special scene.01-05-2012
20120008010ADJUSTMENT FOR OUTPUT IMAGE OF IMAGE DATA - When a memory card is inserted into a slot, the control circuit of a color printer obtains image output control information from a memory card and analyzes it. When auto light source is not set as the light source, the CPU references the reference values and coefficients for the characteristics parameters except for color balance and performs correction, and then adjusts the image data image quality to reflect the post-correction characteristics parameters. As a result, it is possible to automatically adjust the image quality of image data without losing the selectively set output conditions.01-12-2012
20120008008IMAGE PROCESSING DEVICE, IMAGING METHOD, IMAGING PROGRAM, IMAGE PROCESSING METHOD, AND IMAGE PROCESSING PROGRAM - An image processing device includes: an image generating unit that generates third image data on the basis of first image data and second image data different in exposure condition from the first image data; a subject recognizer that recognizes a predetermined subject on the basis of the first image data; and a brightness value condition detector that detects a brightness value condition of an area around the predetermined subject recognized by the subject recognizer in the first image data, wherein the image generating unit generates the third image data on the basis of the detection result in the brightness value condition detector.01-12-2012
20100214435Adjusting auto white balance - Techniques, systems and apparatus are described for adjusting auto white balance (AWB). An AWB adjusting device includes a map setting unit to perform map-setting on a number of light-source boxes that is at least M times greater than a number of registers by performing map-switching. M is an integer greater than or equal to 2. The AWB adjusting device includes a pixel counting unit for counting a number of white pixels of a standard image contained in each light-source box with map-setting. The AWB adjusting device includes a light-source selection unit to select a light source based on a maximum light-source box selected from the number of light-source boxes having a greatest number of the white pixels. The AWB adjusting device includes a balance gain applying unit to calculate a red gain and a blue gain based on a mapping value of the maximum light-source box to adjust AWB.08-26-2010
20120008009WHITE BALANCE ADJUSTMENT DEVICE, IMAGE CAPTURE DEVICE, WHITE BALANCE ADJUSTMENT METHOD, STORAGE MEDIUM, AND INTEGRATED CIRCUIT - A natural white balance is achieved in images that are captured while emitting a flash. The white balance of an image is adjusted using a WB adjustment portion and a mixture ratio calculation portion estimating a mixture ratio of an external light component and a flashed light component that are present in an image captured with emitting a flash, from the image obtained that is captured while emitting a flash and an image signal that is obtained without emitting a flash. Further, an external light WB coefficient determination portion determines an WB coefficient for the external light, a flashed light WB coefficient setting portion sets a WB coefficient for the flashed light, and a WB processing portion that continuously performs WB processing on the image captured while emitting a flash by using the mixture ratio as an interpolation ratio.01-12-2012
20090237525IMAGE PICK-UP APPARATUS, AN IMAGE PROCESSING APPARATUS AND AN IMAGE PROCESSING METHOD, WITH APPROPRIATE COLOR SPACE CONVERSION - An image pick-up apparatus includes an image pick-up device, a storage media which stores an image picked up by the image pick up device, a color space converter which converts a color space of the image; a storage media reader which reads out the image from the storage media, an external display interface, a coefficient determiner which determines a coefficient for color conversion based on comparison between a resolution of the image read out by the storage media reader and a resolution of a display which is connected to the external display interface, and a display controller which outputs the image of which color is converted by the color space converter based on the coefficient for color conversion to the display.09-24-2009
20120013764IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND COMPUTER-READABLE MEDIUM - An image processing apparatus for applying a color balance correction to input image data, comprises a holding unit which holds information indicating a locus of a change in highlight color when a color temperature for image data is changed on a color space; a highlight color calculation unit which calculates a highlight color from the image data; a distance calculation unit which calculates a distance between the highlight color and the highlight color locus held in the holding unit on the color space; a reliability calculation unit which calculates a reliability for a value of the highlight color calculated by the highlight color calculation unit in accordance with the distance calculated by the distance calculation unit; and a color balance correction unit which applies the color balance correction to the image data using the highlight color and the reliability.01-19-2012
20120013763IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND COMPUTER-READABLE MEDIUM - An image processing apparatus for applying a color balance correction to input image data, comprises a first highlight color calculation unit which estimates a light source at the time of shooting from pixel values of the image data, converts color values of the image data based on a condition of the estimated light source at the time of shooting, and calculates a first highlight color; a second highlight color calculation unit which calculates a second highlight color from the image data; a third highlight color calculation unit which calculates a third highlight color based on a positional relationship between the first highlight color and the second highlight color on a color space; and a correction unit which attains the color balance correction by converting the pixel values of the image data using the third highlight color.01-19-2012
20120013765IMAGING APPARATUS - An imaging apparatus includes an imaging unit, a white balance adjustment unit configured to adjust a white balance of image data output from the imaging unit, a determination unit configured to determine brightness of the image data, a filter control unit configured to control a filter in order not to cause light including a predetermined wavelength component incident on the imaging unit, and a control unit configured to, if the determination unit determines that the image data is darker than a predetermined value, execute both of a first mode for amplifying a gain of each color of the image data by the white balance adjustment unit and a second mode for controlling the filter by the filter control unit so as to cause the light including the predetermined wavelength component incident on the imaging unit.01-19-2012
20120057045IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND PROGRAM - The present invention generates first developed image data by correcting image data with use of a first white balance correction value corresponding to a first light source, generates second developed image data by correcting the image data with use of a second white balance correction value corresponding to a second light source, calculates a color evaluation value of each of blocks by adding and averaging color evaluation values of pixels in the image data for each of the divided blocks, calculates a combining ratio based on a difference between the calculated color evaluation value of each of the blocks and a color evaluation value of white under the second light source, and combines the first developed image data and the second developed image data according to the calculated combining ratio.03-08-2012
20100238317WHITE BALANCE PROCESSING APPARATUS, METHOD FOR PROCESSING WHITE BALANCE, AND WHITE BALANCE PROCESSING PROGRAM - A white balance processing apparatus including: an image data obtaining unit for obtaining image data on the basis of a photographed image; a light source condition determination unit for determining a condition of a light source in imaging as an outdoor light source in the case where subject luminance of the image data is relatively high, while determining a condition of a light source in imaging as an indoor light source in the case where the subject luminance of the image data is relatively low; and a white balance adjustment unit for determining a color to be converted into an achromatic color on the basis of color information of a pixel in the image data to adjust white balance of the image data, the color to be converted being selected from colors including a more bluish color with respect to the case that the condition of the light source is determined as an outdoor light source in the case where the determined condition of the light source is an indoor light source.09-23-2010
20120057044IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND RECORDING MEDIUM - An image processing method generates first developed image data by correcting first image data with use of a white balance correction value corresponding to flash light, generates second developed image data by correcting the first image data with use of a second white balance correction value corresponding to external light, calculates a combining ratio of each block based on a flash component and an external light component of each of blocks into which the first image data is divided, and combines the first developed image data and the second developed image data according to the calculated combining ratio.03-08-2012
20120307105IMAGE SIGNAL PROCESSING CIRCUIT, IMAGE CAPTURE DEVICE, IMAGE SIGNAL PROCESSING METHOD, AND PROGRAM - The present invention relates to an image signal processing circuit, an image capture device, and image signal processing method, and a program capable of reading special information, such as a bar code, using normal lenses with high precision without needing dedicated EDOF lenses and signal processing circuits. The image signal processing circuit has a processing circuit 12-06-2012
20120307104IMAGING DEVICE CAMERA SYSTEM AND DRIVING METHOD OF THE SAME - An imaging device including an electronic shutter and a pixel array with color pixels with different characteristics of spectral sensitivity arranged. The pixel array part has at least one clear pixel, the plurality of color pixels including (i) a first color filter pixel having a peak of spectral sensitivity characteristics for red, (ii) a second color filter pixel having a peak for blue, and (iii) a third color filter pixel having a peak for green. The clear pixel has a high transmittance arranged in an oblique pixel array system at a given position of a given row and a given column with respect to the first color filter pixel, the second color filter pixel, and the third color filter pixel. An electronic shutter is separately driven for the at least one clear pixel and for the plurality of color filter pixels.12-06-2012
20120307103IMAGING APPARATUS, IMAGING METHOD AND COMPUTER-READABLE STORAGE MEDIUM - An imaging apparatus includes: an imaging unit that generates electronic image data; a display unit that displays an image; an image processor that produces a visual effect on the image data in combination with a plurality of image processes to generate processed image data; a release input unit that accepts an input of a release signal of instructing the imaging apparatus to execute shooting; an image process controller that executes the plural kinds of special effect processes on one piece of image data generated after the acceptance of the input of the release signal and to generate plural pieces of processed image data; and a display controller that controls the display unit to display, for a predetermined time, one of an image corresponding to the piece of image data and at least one processed image corresponding to at least a part of the plural pieces of processed image data.12-06-2012
20120026355DIGITAL IMAGE PROCESSING APPARATUS AND METHOD OF CONTROLLING THE SAME - Provided are a digital image processing apparatus, and a method of controlling the same, the method including inputting a setup image having a first region input via a filter; extracting first color information from the first region; retrieving a stored image; generating a display image by changing colors of the stored image based on the first color information; and displaying the display image.02-02-2012
20120026356LIGHT-EMITTING APPARATUS, IMAGE PICKUP APPARATUS, AND CAMERA SYSTEM CAPABLE OF CHANGING EMISSION COLOR TEMPERATURE - A light-emitting apparatus which is capable of emitting light at desired emission color temperature even when aged deterioration of a light-emitting unit occurs. The light emitting unit has a plurality of LEDs that emit light in different colors, and is capable of changing emission color temperature of the light-emitting unit by changing the ratio of an amount light emitted by the LEDs. A emission color temperature of the light-emitting unit is set, and the light-emitting unit is flashed based on parameters corresponding to the set emission color temperature. Color temperature data on the image data is obtained based on image data obtained by performing image pickup by flashing the light-emitting unit based on the parameters. The parameters corresponding to the set emission color temperature are corrected based on the color temperature data on the set emission color temperature and the obtained color temperature data.02-02-2012
20120062763IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND CAMERA MODULE - According to one embodiment, an image processing apparatus includes a color mixture correction unit. The color mixture correction unit corrects the mixture of colors caused when an incident light having passed through color filters corresponding to neighboring pixels enters a target pixel. The color mixture correction unit references the signal level of the target pixel and the signal levels of the neighboring pixels. The color mixture correction unit calculates a correction amount corresponding to the signal level of a red pixel which is the neighboring pixel. The color mixture correction unit performs a calculation on the signal level of the target pixel using the correction amount.03-15-2012
20100177210METHOD FOR ADJUSTING WHITE BALANCE - A white balance adjustment method is disclosed, in which a plurality of input pixels are transformed into a digital component color space, a hue region of each of the color-space transformed input pixels is determined, and a transformation matrix is determined according to the determined hue region.07-15-2010
20120154625IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND PROGRAM RECORDING MEDIUM - An image processing apparatus, an image processing method, and a program recording medium are provided. The image processing apparatus includes a color reproduction correction unit for correcting an image signal formed by an imaging element according to a color reproduction matrix; a color reproduction matrix storage unit for storing a registered color reproduction matrix or an inverse matrix of the registered color reproduction matrix for each light source coordinates in a color space; and a color reproduction matrix calculation unit for interpolating inverse matrices of registered color reproduction matrices corresponding to at least two light source coordinates stored in the color reproduction matrix storage unit according to estimated light source coordinates in the color space, which are obtained from the image signal, and calculating an inverse matrix of a result of the interpolation as the color reproduction matrix.06-21-2012
20120154626IMAGE PROCESSING METHOD AND IMAGE PROCESSING APPARATUS FOR IMAGE RESTORATION - The image processing method includes a step of acquiring an input image produced by image capturing using an optical system, an image restoration step of performing an image restoration process on the input image to produce a restored image, the image restoration process using an image restoration filter produced based on an optical transfer function of the optical system, and a color shift detection step of detecting color shift included in the restored image, the color shift corresponding to chromatic aberration of magnification of the optical system. The method further includes a restored image color shift reduction step of performing a color shift reduction process on the restored image to reduce the color shift detected in the color shift detection step.06-21-2012
20130010157IMAGE-PICKUP APPARATUS AND WHITE-BALANCE CONTROL METHOD PROVIDED THEREFOR - The present invention allows for selecting a predetermined chromatic color for extraction from among a plurality of chromatic colors based on the result of identification of acquired photographing information. When the value of a white extraction area of the photographing information is smaller than a first threshold value, it is determined whether the value of the area of the selected predetermined chromatic color is greater than or equal to a second threshold value. If the value of the predetermined chromatic-color area is determined to be greater than or equal to the second threshold value, white balance is controlled by bringing the value of the predetermined chromatic-color area near to a predetermined target color value.01-10-2013
20130010156IMAGING APPARATUS AND CONTROL METHOD FOR IMAGING APPARATUS - The present invention is directed to performing imaging processing for dividing a video signal obtained by an imaging unit into a plurality of areas, and detecting in parallel respective evaluation values of video signals of the plurality of areas, reducing the video signal obtained by the imaging unit, detecting an evaluation value of the reduced video signal, and controlling an operation of the imaging apparatus using either the evaluation values of video signals of the plurality of areas or the evaluation value of the reduced video signal.01-10-2013
20130010155LIGHT-EMITTING APPARATUS AND CAMERA SYSTEM INCLUDING THE SAME - A light-emitting apparatus and a camera system including the same are disclosed. According to an aspect of the invention, a camera system is provided that includes a light source color detector for detecting a color temperature of a light source; an auxiliary light apparatus for changing a color temperature of auxiliary light according to the detected color temperature of the light source; and a white balance controller for adjusting white balance while the auxiliary light is being radiated. Accordingly, a photograph having a natural color sense can be reproduced by reducing a sense of color incongruity in a captured image.01-10-2013
20110037872IMAGE PICKUP APPARATUS - An object is to provide an image pickup apparatus which can improve convenience of white sheet data used for correcting the color of a picked-up image. Each image pickup data is converted into a file by an image filing unit and recorded by a medium-recording unit. Average value data of each color component data for part of the picked-up data is stored in an area different from the image pickup data recording area in each file.02-17-2011
20110102632IMAGE PICK-UP APPARATUS, WHITE BALANCE SETTING METHOD AND RECORDING MEDIUM - In an image pick-up apparatus 05-05-2011
20110102631DIGITAL CAMERA AND METHOD OF CONTROLLING THE SAME - A digital camera includes a color shading area detecting unit that detects color shading areas from an entire area of a screen, and a white balance (WB) gain calculating unit that calculates WB gains from available screen areas remaining after excluding the detected color shading areas.05-05-2011
20110102630IMAGE CAPTURING DEVICES USING DEVICE LOCATION INFORMATION TO ADJUST IMAGE DATA DURING IMAGE SIGNAL PROCESSING - Several methods and apparatuses for adjusting image data during image processing based on device specific information (e.g., location, orientation) for image capturing devices are described. In one embodiment, after having powered on the device and placing it in image capture mode, a location function determines location data of the device including a regional location. Next, an image capture function begins execution which captures one or more images of a scene that is before the camera lens. Next, adaptive image signal processing can occur based on the location data. For example, color adjustments (e.g., white balance, hue, saturation), sharpening, and contrast parameters for a given region may be adjusted during the image processing.05-05-2011
20120162464DIGITAL IMAGE PHOTOGRAPHING APPARATUS AND METHOD OF CONTROLLING THE SAME - A digital image photographing apparatus and a method of controlling the same. The method includes: determining a focal area by a touch; if the touch continues for a first time period, performing a photographing operation to generate a first capture image; and if the touch continues for a second time period that is longer than the first time period, a successive capturing operation is performed until the touch is ended. Accordingly, auto-focusing may be performed by using a touching method, and a photographing may be performed while maintaining an auto-focusing result, and then successive capturing may be performed.06-28-2012
20100289919Method and Apparatus for Compensating for Fixed Pattern Noise in an Imaging System - The invention relates to a method and apparatus for configuring an imaging system to compensate for fixed pattern noise, variations in pixel values captured from an image sensor that vary according to a fixed pattern. In a method for configuring an imaging system for compensating an additive term component of fixed pattern noise, a pixel array is exposed to a scene of known radiance and an average white value is determined for each pixel of an array. Each average white value is compared to a predetermined reference value to determine a correction value for each pixel. In a method for configuring an imaging system for compensating both an additive and multiplicative component of fixed pattern noise, a pixel array is exposed to a first scene having a first known radiance, and frames of the scene are captured, and then the array is exposed to a second scene having a second known radiance and frames of the second scene are captured. After first and second average white values are determined for each pixel additive and multiplicative term correction values for each pixel are then determined by solving for a system of equations relating the first and second average white values and first and second scene radiances. Correction values can be utilized to correct pixel values of a frame of image data, and a decoding algorithm for attempting to decode a frame of image data including corrected pixel values can be activated.11-18-2010
20100289918IMAGING APPARATUS - An imaging apparatus includes: a display unit for displaying color image data acquired by the imaging unit; a colorimetric position acquisition unit for acquiring colorimetric position data corresponding to a colorimetric part selected by a user in the image data displayed on the display unit; a colorimetric position data record unit for recording the colorimetric position data; a light source; a colorimetric unit, provided near the light source, for performing a colorimetric process at a colorimetric instruction from the user, and acquiring colorimetric data as a result of the colorimetric process; a colorimetric data record unit for recording the colorimetric data; and a storage unit for associating the image data displayed on the display unit, the colorimetric position data recorded on the colorimetric position data record unit, and the colorimetric data recorded on the colorimetric data record unit, and storing the data.11-18-2010
20120249827Method for Image Processing of High-Bit Depth Sensors - High-bit depth sensors often capture more information then can be displayed on a commercially available display. Due to this, image processing systems and methods are disclosed to ensure that as much information as possible is presented to a user in a meaningful and statistically significant manner. The image processing systems and methods disclosed herein allow a user to view and process data that would otherwise be invisible to the user.10-04-2012
20120249828APPARATAUS AND METHOD OF AUTOMATIC COLOR SHADING REMOVAL IN CMOS IMAGE SENSORS - A method of processing an image includes the steps of separating an image into multiple color channels, and dividing the image into multiple zones, in which each zone includes a sub-array of pixels. The method then calculates a color shading profile for each zone. The color shading profile is calculated as a linear function, typically a straight line. If a linear function cannot be determined for that zone, the method interprets a function for that zone using the nearest zone neighbors. The method corrects the color shading using the functions calculated for the respective zones.10-04-2012
20100245618WHITE BALANCE CONTROL APPARATUS AND METHOD - An apparatus includes an evaluation acquisition unit, a chromaticity value calculation unit, a weight coefficient calculation unit, a histogram analysis unit, an appearance at a light source calculation unit, a white balance coefficient calculation unit, and a white balance operating unit. the evaluation acquisition unit acquires color signal values from image data. The chromaticity value calculation unit calculates chromaticity values from the color signal values. The weight coefficient calculation unit extracts a signal value as a lightness value, and calculates a weight coefficient determined by the lightness value. The histogram analysis unit calculates the center position of a histogram, a histogram multiplication value and a histogram dispersion value. The appearance at a light source calculation unit calculates an appearance at a light source for each color temperature. The white balance operating unit executes a white balance operation with respect to the image data using a white balance coefficient.09-30-2010
20100245617AUTOMATED WHITE BALANCING IN DIGITAL PHOTOGRAPHY - A method for improving white balance measurement for digital cameras or the like uses color reference articles for placement within a scene coordinated with a digital camera capable of automatically recognizing the color reference supplied by the article. The reference articles comprise a signaling device (such as an RFID chip, an LED that emits in a specified and unique spectral area, or a watermark) that allows the digital camera to pinpoint the location of the reference article, its color value, size, and other information needed to use the reference article for color balancing. The digital camera receives the signal from the reference article and uses it for white balancing.09-30-2010
20100245616IMAGE PROCESSING DEVICE, IMAGING DEVICE, COMPUTER-READABLE RECORDING MEDIUM, AND IMAGE PROCESSING METHOD - An image processing device captures a normal light image of an observed region via a plurality of color filters having different spectral characteristics, respectively, generates a uniform image having low contrast by extracting each picture signal corresponding to a picture signal in a wavelength band for which light absorption characteristic of a contrast region in the observed region becomes low, and corrects each picture signal of a fluorescence image of the observed region by using the uniform image.09-30-2010
20120127335IMAGE CAPTURE WITH REGION-BASED ADJUSTMENT OF CONTRAST - Image capture with an image capture device including an imaging assembly having a spectral response which is tunable in accordance with a capture parameter. A first capture parameter is applied to the imaging assembly. A preview image of a scene is captured using the imaging assembly whose spectral response is tuned in accordance with the first capture parameter. A user interface is displayed by which first and second regions of the preview image are designated, and by which a target range is set for contrast between the first and second regions. A second capture parameter is derived for the imaging assembly, by implementing the target range for contrast between the first and second regions. The second capture parameter is applied to the imaging assembly. A second image of the scene is captured by using the imaging assembly whose spectral response is tuned in accordance with the second capture parameter.05-24-2012
20120127337IMAGE CAPTURE DEVICE - An image capture device according to the embodiment of the present invention includes an image capture section 05-24-2012
20120127336IMAGING APPARATUS, IMAGING METHOD AND COMPUTER PROGRAM - The present invention provides an imaging apparatus which, when a dynamic range is expanded, even if a subject is irradiated by a plurality of different light sources, can apply adequate white balances to respective light sources. The imaging apparatus captures two images from an image sensor at different exposures when a preview image, which is input from the image sensor but is not captured yet, includes an area which is irradiated by the different light sources and which comprises the different brightnesses. The imaging apparatus then composes a dark area of the one image captured at the over exposure and applied a white balance to and a bright area of the other image captured at the under exposure and applied a white balance to.05-24-2012
20120127334ADAPTIVE SPATIAL SAMPLING USING AN IMAGING ASSEMBLY HAVING A TUNABLE SPECTRAL RESPONSE - Image capture using an image capture device which includes an imaging assembly having a spectral response which is tunable in accordance with a capture parameter. A default capture parameter is applied to the imaging assembly, wherein the default capture parameter has high spectral dimensionality. A sample image of a scene is captured. The sample image is analyzed to identify multiple different regions in the scene, wherein each such region shares similar imaging properties that are dissimilar from imaging properties in other regions of the scene. A spectral mask is derived based on the analysis, wherein the spectral mask is derived so as to achieve good image capture tailored to the imaging properties of each different region of the scene. The spectral mask is applied as the capture parameter to the imaging assembly. A final image of the scene is captured and stored.05-24-2012
20100208098IMAGING APPARATUS - An imaging apparatus includes an imaging unit to acquire image data, an integration unit to calculate a white balance integration value, a first calculation unit to calculate a still image white balance control value, a second calculation unit to calculate a histogram white balance control value, and a histogram processing unit. The second calculation unit calculates the histogram white balance control value by converting a white balance control value which is used in white balance processing on the image data acquired by the imaging unit in an electronic view finder (EVF) mode to the still image white balance control value, and the histogram processing unit adjusts color balance of the image data acquired by the imaging unit using the calculated histogram white balance control value and performs the histogram processing in parallel with calculation of the white balance integration value.08-19-2010
20100208097IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - Both a high signal-to-noise ratio and wide dynamic range of the output video signal of a one-CCD color television camera are realized. An image signal processing apparatus of an imaging device using a solid-state image sensor in which different color filters are arranged includes an amplifying unit which amplifies color signals from the solid-state image sensor with a predetermined amplification factor, a separating unit which separates the color signals amplified by the amplifying unit into individual color signals, a white balance adjusting unit which subjects the separated color signals to white balance adjustment, a level detecting unit which detects a saturation level from the color signals subjected to the white balance adjustment depending on the amplification factor of the amplifying unit, a correction signal generating unit which generates correction signals from the other color signals than the color signal from which the saturation level is detected by the level detecting unit, and a first adding unit which adds the correction signals to the color signals subjected to the white balance adjustment.08-19-2010
20100208099IMAGING DEVICE AND IMAGING METHOD - An imaging device is configured to include an optical system which captures an image of a subject, an image sensor which converts the image captured by the optical system into an electric signal, a classifying unit which classifies the captured image into a plurality of areas according to brightness information and color information, a white balance correcting unit which set different white balance correction coefficients for the plurality of areas; and a white balance correction coefficient adjusting unit which adjusts a difference in the white balance correction coefficients for the plurality of areas to be within a first predetermined range.08-19-2010
20120212644IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND STORAGE MEDIUM - An image processing apparatus comprises edge detection unit, on-axis chromatic aberration edge detection unit which detects an edge determined to include chromatic aberration on an axis from the edges, color deviation amount acquisition unit which acquires color deviation amounts on the edges, and correction unit which performs chromatic aberration correction, wherein the on-axis chromatic aberration edge detection unit detects, as the edge which includes the chromatic aberration on the axis, an edge having signals corresponding to at least one color on the edge of the image data, which has a blur amount that is not less than a threshold value, and signals corresponding to at least another color which has a blur amount that is less than the threshold value, and the color deviation amount acquisition unit acquires the color deviation amounts from edges among the edges.08-23-2012
20120212643IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND CAMERA MODULE - According to one embodiment, an image processing apparatus includes a pixel interpolation unit. The pixel interpolation unit includes a calculating unit that adds, to a first frequency band component, a second frequency band component in a direction in which the amount of change in the sensitivity level value of an acquired color component is determined to be small. The second frequency band component is in a frequency band higher than the first frequency band component.08-23-2012
20120162465ELECTRONIC DEVICE WITH TWO IMAGE SENSORS - An electronic device for producing an image of an object is disclosed. The electronic device may include a black-and-white camera having a first sensor area configured to receive luma data pertaining to the object. The first sensor area may correspond to a first pixel array, the luma data associated with the first pixel array. The electronic device may also include a color camera having a second sensor area configured to receive chroma data pertaining to the object. The second sensor area may correspond to a second pixel array. The chroma data may be associated with the second pixel array. The electronic device may also include first logic configured to correlate pixels in the first pixel array with locations on the second sensor area.06-28-2012
20120218439IMAGE PROCESSING DEVICE, IMAGE PROCESSING METHOD, AND PROGRAM - An image processing device includes a color temperature estimating unit configured to estimate a color temperature of a light source in imaging, a white balance adjusting unit configured to perform first white balance adjustment in which white balance of an image signal is adjusted on the basis of the estimated color temperature when the estimated color temperature is within a predetermined color temperature range, and perform second white balance adjustment in which the white balance of the image signal is adjusted on the basis of the estimated color temperature even when the estimated color temperature is not within the predetermined color temperature range, and a color region extracting unit configured to extract a color region of a specific color by using the image signal to which the second white balance adjustment is applied.08-30-2012
20110199508IMAGING DEVICE, IMAGING METHOD AND COMPUTER READABLE RECORDING MEDIUM STORING PROGRAM FOR PERFORMING THE IMAGING METHOD - An imaging device includes an imaging element configured to convert light that has entered from an optical system into an electric signal, and to output the electric signal as an imaging signal, a macro shooting determination section configured to determine whether shooting is macro shooting or not, a low color temperature light source determination section configured to determine whether or not the shooting is performed in a lower color temperature light source based on color information, a first white balance correction coefficient calculator configured to calculate a white balance correction coefficient so as to obtain an image in which a color of the low color temperature light source is added, and a second white balance correction coefficient calculator configured to calculate a white balance correction coefficient so as to obtain an image in which the color of the low color temperature light source is not added in the lower color temperature light source and in the macro shooting.08-18-2011
20120224081CAMERA DEVICE AND METHOD FOR AUTOMATIC RED-EYE AVOIDANCE OF DIGITAL IMAGES - In a method for automatic red-eye avoidance of digital images captured from a person using a camera device, the camera device includes a camera lens and a red-eye flash light. The camera lens captures a digital image of the person, and a face area is detected from the digital image according to a face feature value. An eyes area is detected from the face area according to an eyes feature value, and two eyeball positions are detected from the eyes area according to an eyeball feature value. The method analyzes color of each eyeball positions, and determines whether one of the eyeballs of the person is red according to the analysis result. The method invokes a red-eye flash mode of the red-eye flash light if one of the eyeballs is red, and controls the camera lens to capture a non-redeye image of the person under the red-eye flash mode.09-06-2012
20120188401IMAGE PROCESSING APPARATUS - An image processing apparatus includes a taker which repeatedly takes an image expressing an imaged scene. An adjuster adjusts a white balance of the taken image, referring to a confirmed white balance adjustment coefficient. A calculator calculates an appropriate white balance adjustment coefficient based on a partial image indicating colors in a color range that includes a white color, out of the taken image. A detector detects a possibility of the partial image focused on by the calculator being an image expressing a human skin, based on the calculated appropriate white balance adjustment coefficient. A corrector brings a value of the calculated appropriate white balance adjustment coefficient closer to a value of the confirmed white balance adjustment coefficient, along with an increase in the value of the detected possibility. An updater updates the confirmed white balance adjustment coefficient by the appropriate white balance adjustment coefficient indicating the corrected value.07-26-2012
20120188402APPARATUS AND METHOD FOR COMPENSATING FOR VARIATIONS IN DIGITAL CAMERAS - A method of manufacturing a digital video camera is provided. The method comprises acquiring video images of colored light, and measuring a light intensity response of the video camera to the colored light. The method further comprises comparing the intensity of the measured response to a desired colored light intensity for determining a color intensity bias and storing the intensity bias for the colored light in the camera so that the bias can be applied when the camera is operating at an arbitrary lighting condition.07-26-2012
20120188400PIXEL ARRANGEMENT FOR EXTENDED DYNAMIC RANGE IMAGING - The present invention relates to an imager for improving image quality. The imager includes a pixel array of a plurality of pixels arranged in rows and columns. The imager also includes a color filter array (CFA) including a color pattern of a first color filter allowing a first pixel to detect a first color of light, and a second color filter allowing a second pixel to detect a second color of light and a third color of light. Each of the color filters in the color pattern are included in each row of the pixel array.07-26-2012
20120188399Methods and Systems for Automatic White Balance - A method for compensating an automatic white balance (AWB) reference generated for a first image sensor is provided that includes computing a red adjustment factor, a green adjustment factor, and a blue adjustment factor based on an average red value, an average green value, and an average blue value of the first image sensor and an average red value, an average green value, and an average blue value of a second image sensor, and modifying a red value, a green value, a blue value, and chromaticity values of the AWB reference based on the red adjustment factor, the green adjustment factor, and the blue adjustment factor to generate a compensated reference for the second image sensor. A method for tuning AWB references based on changes in chromaticity values of the references is also provided.07-26-2012
20120262601QUANTUM DOT IMAGE SENSOR WITH DUMMY PIXELS USED FOR INTENSITY CALCULATIONS - An image sensor of a camera unit comprises raw image pixels for generating raw image color representing the exposed scene image. The sensor also comprises dummy pixels for supplemental data pertaining to characteristics of light exposing the scene image. A image sensor processor generates a processed digital image by adjusting component color values, obtained from raw image color data, by one or more adjustment factors calculated from supplemental image data. The adjustment factors are calculated according a selected mode of operation.10-18-2012
20120262600WHITE BALANCE OPTIMIZATION WITH HIGH DYNAMIC RANGE IMAGES - Systems and methods to improve the white balance of a high dynamic range image are disclosed. In a particular embodiment, an imaging device includes a camera sensor and a processor, the processor configured to capture a lighter image and a darker image of a scene. The processor is then configured to white balance the lighter image based on the lighter regions of the image, and to white balance the darker image based on the darker regions of the image. The two images can then be combined to produce a final image.10-18-2012
20090002519IMAGE PROCESSING METHOD, APPARATUS AND COMPUTER PROGRAM PRODUCT, AND IMAGING APPARATUS, METHOD AND COMPUTER PROGRAM PRODUCT - An appropriate white balance coefficient is calculated using an evaluation value of a specific chromaticity or an imaging condition, in addition to face area detection information, in the following manner. A first white balance coefficient is calculated by a first white balance coefficient calculation unit based on a color image, and a second white balance coefficient is calculated by a second white balance coefficient calculation unit based on a specific subject of the color image. Then, a third white balance coefficient is calculated by a white balance combining unit by weighting the first white balance coefficient and the second white balance coefficient based on an evaluation result of a specific chromaticity evaluation unit or an imaging condition of an imaging condition control unit.01-01-2009
20110122285IMAGE PROCESSING FILE SETTING SYSTEM - A system setting an image processing parameter in an imaging apparatus and an information processing apparatus, downloads a parameter file from an external apparatus, and sets in the imaging apparatus an image processing parameter included in the parameter file downloaded from the external apparatus. In the information processing apparatus, image data is processed using the image processing parameter included in the parameter file. Thus, the information processing apparatus and the imaging apparatus can perform image processing using an image processing parameter obtained from one downloaded parameter file.05-26-2011
20110122284MULTIPLE ILLUMINATIONS AUTOMATIC WHITE BALANCE DIGITAL CAMERAS - A multiple source automatic white balancing method includes performing a first image processing on a subject image and generating a first processed image; performing a second image processing on the subject image and generating a second processed image; and generating a third processed image by blending the first and second processed images together based on an output of an outdoor weight map function.05-26-2011
20110122283IMAGE CAPTURING APPARATUS AND IMAGE PROCESSING METHOD - An image capturing apparatus that performs RGB three-band image capturing. Additional band pixels BG and OG having a spectral sensitivity peak wavelength between the B and G bands and between the R and G bands, respectively, are disposed on an image sensor consisting of RGB pixels. A feature quantity in the spectral characteristics of light incident on the sensor is obtained based on pixel values in the additional bands and pixel values in the RGB bands detected by the image sensor, and is applied to image processing of a captured object image. In order to maintain the image capturing resolution, in the image sensor, the number of additional band pixels is smaller than the number of R pixels, the number of G pixels, and the number of B pixels.05-26-2011
20100328487IMAGE CAPTURE APPARATUS - An image capture apparatus has an image capture unit to capture an object image, an acquisition unit to acquire a developing parameter for image data captured by the image capture unit, an analysis unit to analyze RAW image data generated by the image capture unit, an image composition unit to compose a plurality of RAW image data generated by the image capture unit and generate composite RAW image data, a composition ratio determination unit to determine a composition ratio for a plurality of developing parameters respectively for development of the plurality of RAW image data acquired by the acquisition unit, a parameter composition unit to compose the plurality of developing parameters and generate one composite developing parameter, and a development unit to develop the composite RAW image data using the composite developing parameter.12-30-2010
20080297620Reducing Computational Complexity in Determining an Illuminant of a Scene - In an embodiment, computational complexity of estimating the actual illuminant of a scene is reduced by examining only a subset of the pixel values generated for a received image frame. In another embodiment, number of rotations of color values is minimized by selecting an area which contains the color cue values of a color in an original/unrotated coordinate space and has boundaries which parallel the axis of the original coordinate space, and rotating a color value only if the color value is within the selected area. In another embodiment, such an area is used in conjunction with a histogram-based approach to determine the actual illuminant.12-04-2008
20110037873METHOD AND APPARATUS PROVIDING AUTOMATIC COLOR BALANCING FOR DIGITAL IMAGING SYSTEMS - Pixels from an image are sampled for gray world statistics. To avoid the effect of saturated regions, the pixels are pruned. If a predetermined percentage of the pixels are included in the gray world statistics, color channel gain is calculated and applied to the image. As a result, color balance is achieved in a simple and efficient manner.02-17-2011
20100231747METHOD AND SYSTEM FOR FOCAL LENGTH-SPECIFIC COLOR ENHANCEMENT - A method of controlling a digital photographing device, the method including analyzing the color distribution of an input image, determining an enhancement color from the input image according to a predetermined criterion based on the analyzed color distribution, and enhancing the enhancement color in the input image. The predetermined criterion may be that a color distributed at a ratio higher than a predetermined ratio is determined as the enhancement color. The predetermined enhancement color may further depend on the focal length of the image.09-16-2010
20100231746IMAGING DEVICE AND IMAGING METHOD - An imaging device is configured to include a dividing unit which divides a generated image into blocks, a white balance evaluation value acquiring unit which acquires color information and a white balance evaluation value of each block, a classifying unit which combines the blocks into areas based on the color information, a correction coefficient calculating unit which calculates a white balance correction coefficient for each of the areas, a white balance setting unit which sets the calculated white balance correction coefficient for each of the areas, and a green area determining unit which determines whether or not each of the blocks is a green area based on the color information. The white balance setting unit sets a different white balance correction coefficient for a block determined as a green area from the one set for the area including the block in question.09-16-2010
20100231745IMAGING DEVICE AND SIGNAL PROCESSING METHOD - The present invention provides an imaging device that generates, for, each of a red color, a green color, and a blue color, an image signal having pixels arranged adjacent to each other in a two-dimensional array, including a red color imaging element that senses incident light to output a red color signal (09-16-2010
20110254974SIGNAL PROCESSING APPARATUS, SOLID-STATE IMAGE CAPTURING APPARATUS, ELECTRONIC INFORMATION DEVICE, SIGNAL PROCESSING METHOD, CONTROL PROGRAM AND STORAGE MEDIUM - A signal processing apparatus is provided, for processing pixel signals corresponding to a plurality of respective pixels, the signal processing apparatus comprising a color matrix section for detecting brightness of the pixel and performs color adjustment on the pixel signals using a color matrix in accordance with the detected brightness of the pixel.10-20-2011
20120092522IMAGING APPARATUS, METHOD AND PROGRAM - An imaging apparatus displays and records any area in a synthesized image according to user's taste. The synthesized image is displayed based on the set display area and the record area is set to display the synthesized image, so that the display area is compared with the record area to enable easily confirming whether the actually acquired synthesized image satisfies the area desired by the user and assisting recording in an area where a better composition is provided even if the user is unfamiliar with the composition.04-19-2012
20120092521IMAGE PROCESSING APPARATUS HAVING FUNCTION OF CORRECTING IMAGE BASED ON AMBIENT ILLUMINATION, AND IMAGE PROCESSING METHOD - An image processing apparatus includes: an illumination sensor sensing the intensity of illumination; an image signal processing unit processing an input image signal obtained from an image sensor unit; and a codec unit coding image signal information obtained by the image signal processing unit to obtain a luminance coefficient representing a luminance signal of an image, and adjusting the luminance coefficient according to an ambient intensity of illumination sensed by the illumination sensor.04-19-2012
20120092520CROSSTALK FILTER IN A DIGITAL IMAGE PROCESSING PIPELINE - A technique for applying a crosstalk filter to raw image sensor data in a digital image processing pipeline is disclosed. Raw image sensor data generated by an image sensor, where each pixel in the raw image sensor data includes an intensity value for only a single color channel of a plurality of possible color channels, is processed in the digital image processing pipeline. For each pixel of the raw image sensor data, a corrected intensity value is computed based on intensity values associated with one or more additional pixels of the raw image sensor data that neighbor the pixel.04-19-2012
20130016249IMAGING APPARATUS CAPABLE OF CONTROLLING EXPOSURE INCLUDING FLASH AMOUNT CONTROL OF FLASH APPARATUS, AND CONTROL METHOD THEREOFAANM Mine; YosukeAACI Yokohama-shiAACO JPAAGP Mine; Yosuke Yokohama-shi JP - There is provided an imaging apparatus capable of reducing effects given by an object outside a dynamic range of the camera, and capturing an object image with appropriate exposure, when a camera performs imaging. The imaging apparatus is configured to separate image data into a plurality of blocks, extract a specific-color block using an average value of each color component acquired using only a pixel group whose pixel output is included within a predetermined range and the number of the groups, set a weighting coefficient of an exposure-amount calculation for the block to be determined as the specific color, and set the exposure based on the weighting coefficient and an average value of brightness acquired using only the pixel groups whose pixel output and the average value of the brightness of the block are included within the predetermined range.01-17-2013
20130016250PROCESSING COLOR AND PANCHROMATIC PIXELS - A method for forming a final digital color image includes capturing an image using an image sensor having panchromatic pixels and color pixels corresponding to at least two color photoresponses; providing from the captured image a digital panchromatic image and an intermediate digital color image; and using the digital panchromatic image and the intermediate digital color image to provide the final digital color image.01-17-2013
20110157411IMAGE PROCESSING METHOD, IMAGE PROCESSING APPARATUS, AND IMAGING APPARATUS - The present invention is directed to an image processing apparatus wherein a discrimination whether an input image is a vivid color scene can be made to match a perception or an intention of a human.06-30-2011
20130021495IMAGE PROCESSING APPARATUS, IMAGE PICKUP APPARATUS AND IMAGE PROCESSING METHOD - The image processing apparatus includes a gradient calculating part calculating intensity gradient at each pixel in a captured color image, a first color blur determining part determining that a pixel at which the intensity gradient satisfies a color blur condition using a first threshold is a possible color blur pixel, and a second color blur determining part detecting a saturated pixel in the color image, and determining, when a distance between the saturated pixel and the possible color blur pixel is within a second threshold, that the possible color blur pixel is a color blur pixel. The first and second color blur determining parts change the first and second thresholds depending on at least one of luminance and chroma of the possible color blur pixel.01-24-2013
20130021496METHOD AND SYSTEM FOR FACILITATING COLOR BALANCE SYNCHRONIZATION BETWEEN A PLURALITY OF VIDEO CAMERAS AND FOR OBTAINING OBJECT TRACKING BETWEEN TWO OR MORE VIDEO CAMERAS - A method for facilitating color balance synchronization between a plurality of video cameras within a system of video cameras includes detecting an object in a video sequence captured by a video camera in the system, determining an object color histogram for the detected object, updating a camera specific reference color histogram using the determined object color histogram, and determining one or more camera specific color histogram compensation coefficients by comparing the camera specific reference color histogram with a system reference color histogram. A system for facilitating color balance synchronization between a plurality of video cameras includes a video camera being connectable to a network of video cameras.01-24-2013
20080252748SYSTEM AND COMPUTER-READABLE MEDIUM FOR AUTOMATIC WHITE BALANCING - Systems and computer-readable medium are disclosed for automatic white balancing of an input image. Accordingly, the system includes a cast detector configured to receive and classify an input image based at least in part on a selection of constituent pixels of the input image. The cast detector is further configured to select the constituent pixels based on a computed reliability of each of the constituent pixels to convey at least one characteristic of a capture illuminant. The system further includes a cast balancer. The cast balancer is configured to perform white balancing of the input image based on the classification of the input image by the cast detector. The cast balancer is further configured to identify the capture illuminant based on at least one characteristic represented by each of the selected constituent pixels.10-16-2008
20100091133IMAGE PROCESSING APPARATUS AND METHOD - An image processing apparatus may include an image frame determiner to determine one standard image frame and at least one reference image frame using light field data about a scene, a point spread function determiner to determine a point spread function based on sub-pixel displacement between the standard image frame and the at least one reference image frame, an image interpolator to interpolate the standard image frame into a high-resolution standard image frame having a higher resolution than the standard image frame, and an image restorer to restore a high-resolution image by updating the high-resolution standard image frame using the generated high-resolution standard image frame, the point spread function, and the at least one reference image frame.04-15-2010
20080239094Method of and apparatus for image denoising - An image denoising system and method of implementing the image denoising system is described herein. Noise is decomposed within each channel into frequency bands, and sub-band noise is propagated. Denoising is then able to occur at any node in a camera pipeline after accurately predicting noise that is signal level-dependent, frequency dependent and has inter-channel correlation. A methodology is included for estimating image noise in each color channel at a sensor output based on average image level and camera noise parameters. A scheme is implemented for detecting a peak-white image level for each color channel and predicting image level values for representative colors. Based on a noise model and camera parameters, noise levels are predicted for each color channel for each color patch and these noise levels are propagated to the denoising node. A three dimentional LUT correlates signal level to noise level. Then, a denoising threshold is adaptively controlled.10-02-2008
20080225135Imaging Device Element - characteristic are improved. An imaging device having a hybrid RGBYC color filter using a primary color system RGB filter and a complementary color system YC filter is composed. Four G filters that directly relate to resolution and that is close to a luminance signal that human eyes sense are arrayed in a checker shape so that the number of the G filters is four times larger than the number of filters of each of the other colors. An array shown in FIG. 09-18-2008
20130176455IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - According to one embodiment, an image processing apparatus includes a calculation unit. The calculation unit calculates a reliability for each of pixel areas in such a manner that the reliability increases with increasing at least one of (1) a first evaluation value which increases with increasing planarity, in a color space, of a distribution of pixel values in each of the pixel areas, (2) a second evaluation value which increases with increasing wideness of pixel values in each of the pixel areas on an estimated plane approximating the distribution of the pixel values in each of the pixel areas in the color space, and (3) a third evaluation value which increases with decreasing distance between the estimated plane and an origin of the color space.07-11-2013
20090002517Color Correction Device, Color Correction Method, Dynamic Camera Color Correction Device, and Video Search Device Using the Same - A color correction device (01-01-2009
20130113958COLOR IMAGE SENSOR ARRAY WITH COLOR CROSSTALK TEST PATTERNS - An integrated circuit comprises a semiconductor substrate and a color image sensor array on the substrate. The color image sensor array has a first configuration of color pixels for collecting color image data, and at least one crosstalk test pattern on the substrate proximate the color image sensor array. The crosstalk test pattern includes a plurality of color sensing pixels arranged for making color crosstalk measurements. The test pattern configuration is different from the first configuration.05-09-2013
20130113957Digital Photographing Apparatus - A digital photographing apparatus including: a display unit for displaying a captured image; a position setting unit for setting a position on the display unit; an area setting unit for setting an area based on the position set by the position setting unit; a photometry unit for measuring luminance of the set area; an exposure value determination unit for determining an exposure value based on a photometric reference and a result of the measuring performed by the photometry unit. The digital photographing apparatus may capture a high quality image by properly adjusting exposure and white balance.05-09-2013
20130113956FACE DETECTION AND TRACKING - Methods and systems for face detection and tracking using an image-based capture device are disclosed herein. The method includes generating a depth image of a scene, generating a mask image from the depth image, and detecting a position of a face of a user in the scene using the mask image. The method also includes determining an intensity of the face using a first color channel of the mask image and adjusting a gain level of a first color channel of the image-based capture device directed at the scene to achieve a target intensity of the face.05-09-2013
20130201362IMAGE CAPTURING APPARATUS AND METHOD FOR CONTROLLING THE SAME - An image capturing apparatus comprises an image sensor configured to photoelectrically convert incident light into an image signal and to output the image signal; an exposure time control unit configured to control exposure time when an image is sensed by the image sensor; a gain control unit configured to control a gain to be applied to the image signal; a temperature detection unit; and a color suppression unit configured to determine, from at least one of the exposure time and the temperature, a noise level that changes with the exposure time and the temperature and to suppress, on the basis of a level of color deviation that corresponds to the determined noise level and of the gain, a color component of the image signal so that the color deviation is reduced.08-08-2013
20130093917Alleviating Dominant Color Failure in Automatic White Balance Using Histogram Trimming - Methods, devices and computer readable media for implementing novel dominant color alleviation techniques for color balancing are described. The techniques take advantage of unique properties of 2D image data histograms accumulated in a chromaticity space, along with other factors such as estimated scene lux and knowledge of plausible scene illuminant white point values within the chromaticity space. The accumulated 2D image data histograms may be refined and “trimmed,” such that the resultant image data passed to an auto white balance solution has much less influence from the dominant colors in the image, even those that overlap the plausible scene illuminant color region. The described techniques provide for white point estimates that are much less prone to dominant color failures.04-18-2013
20130093916Use of Noise-Optimized Selection Criteria to Calculate Scene White Points - Methods, devices and computer readable media for implementing a “selective gray world” approach for color balancing are described. The disclosed techniques involve the use of noise-optimized selection criteria and, more specifically, in some embodiments, the interpolation between corresponding values in noise-optimized weighting tables when calculating white balance gains. Estimated scene lux levels may provide a valuable indicator of expected scene noise levels. The image processing techniques described herein may be executed by an image capture device or a general purpose processor (e.g., personal computer) executing a user-level software application. The described color balancing techniques may be implemented by dedicated or general purpose hardware, general application software, or a combination of software and hardware in a computer system.04-18-2013
20130093914Transformations and White Point Constraint Solutions for a Novel Chromaticity Space - A novel chromaticity space is disclosed that may be used as a framework to implement an auto-white balance solution or other color image processing solutions that take advantage of the particular properties of the novel chromaticity space. The chromaticity space may be defined by using a series of mathematical transformations having parameters that are optimized to adapt to specific sensors' spectral sensitivities. The unique properties of the novel chromaticity space provide a conscious white point constraining strategy with clear physical meaning. In this chromaticity space, the ranges of possible white points under different kinds of lighting conditions can be defined by polygons. Because of the physical meaning the chromaticity space, the projection that is needed to bring an initially “out-of-bounds” white point back into the polygon also carries physical meaning, making the definition of projection behavior and its consequences conceptually clean and predictable.04-18-2013
20130100311SOLID-STATE IMAGING DEVICE, CAMERA MODULE, AND FOCUS ADJUSTMENT METHOD OF CAMERA MODULE - According to one embodiment, a solid-state imaging device includes an imaging processing circuit and a focus drive control section. The imaging processing circuit includes a luminance information generating section and a disparity amount calculating section. The luminance information generating section generates first luminance information from a first image signal. The disparity amount calculating section calculates a disparity amount based on the first luminance information and second luminance information. The second luminance information is contained in a second image signal. The focus drive control section controls the focus drive in accordance with a subject distance obtained using the disparity amount.04-25-2013
20130120609IMAGING DEVICE AND CONTROL METHOD FOR IMAGING DEVICE - An imaging device of the present invention comprises an image sensor provided with phase detection pixels for focus detection at some of its pixels, a contrast information detection section for detecting contrast information of a formed image from pixels, among pixel data output from the image sensor, positioned close to the phase detection pixels, a phase detection pixel correction determination section for determining whether or not to correct data of the phase detection pixel based on the detected contrast information, a weighting determination section for determining a weighting for neighboring pixels to the phase detection pixels based on the detected contrast information, a pixel correction section for carrying out weighted correction of the phase detection pixels based on the determined weighting, and a color conversion processing section for carrying out conversion processing for display of the image data or to create an image for storage, after the pixel correction.05-16-2013
20130128073APPARATUS AND METHOD FOR ADJUSTING WHITE BALANCE - An apparatus and method for adjusting a white balance, and more particularly, an apparatus and method for adjusting a white balance of an image captured with a complex light source are provided. The apparatus includes a camera unit, and a controller for controlling recognition of a facial image from an image captured by the camera unit and, if it is determined that the image has been captured with a complex light source based on a comparison between a white balance gain calculated based on a facial skin color of the recognized facial image and a white balance gain calculated based on a white balance scheme, for adjusting a white balance of the captured image based on a final white balance gain extracted by interpolating the two white balance gains.05-23-2013
20110216219IMAGE PICKUP APPARATUS AND CONTROL METHOD THEREOF - In an image pickup apparatus, image data obtained by an image pickup unit is subjected to predetermined image processing, and an image is displayed on an electronic viewfinder screen based on the image data that has undergone the image processing. A specified color is determined based on color information included in a predetermined region of an image that is currently being displayed on the electronic viewfinder screen, and image processing parameters are produced so that color conversion is carried out on the image while eliminating color components of colors other than the determined specified color.09-08-2011
20110211090REGISTER CONFIGURATION CONTROL DEVICE, REGISTER CONFIGURATION CONTROL METHOD, AND PROGRAM FOR IMPLEMENTING THE METHOD - A resister configuration control device which is capable of updating resister configuration values during a non-display period without increasing a circuit scale. A FIFO selector 09-01-2011
20110273584IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - Disclosed is an image processing apparatus capable of effectively correcting color crosstalk in moving image capturing by a simple method, and a control method thereof. When the aperture value changes, the current white balance coefficient is corrected, calculating an estimated white balance coefficient corresponding to the changed aperture value. Re-obtainment of a white balance coefficient starts using a frame image captured at the changed aperture value. During a period required to obtain again a white balance coefficient, the estimated white balance coefficient is applied to a frame image to undergo white balance processing.11-10-2011
20110273583IMAGE PROCESSING APPARATUS, CAMERA MODULE AND ELECTRONIC DEVICE - According to one embodiment, a false color mask signal generation circuit generates a false color pixel mask signal to exclude false color component pixels based on an edge component signal from an edge component extraction circuit. A white balance gain calculation circuit calculates a white balance gain from an integrated value calculated by the false color component pixels being excluded based on the false color pixel mask signal.11-10-2011
20080198240ERROR REDUCTION IN IMAGE SENSORS - A vignetting-type chromatic error, particularly found in image sensors having pixel dimensions of a few microns, may be corrected by applying to each color channel a gain factor which increases with the radial position of the pixel. The gain factor may be also controlled based upon ambient color temperature08-21-2008
20130093915Multi-Illuminant Color Matrix Representation and Interpolation Based on Estimated White Points - This disclosure pertains to devices, methods, and computer readable media for improved accuracy of color correction matrix (CCM) coefficient determination based on estimated white point, while maintaining a relatively smooth variation of CCM coefficients over the white point space. The techniques disclosed herein may be achieved via the storage of a limited number of determined CCM multiplier vectors and thus be effective in the camera image pipelines of real image capture devices. With the more accurate CCMs calculated with the disclosed techniques, visible improvement in rendered colors may be achieved as compared to using interpolation from a handful of corner CCMs. The color correction techniques described herein may be implemented by dedicated or general purpose hardware, general application software, or a combination of software and hardware in a computer system.04-18-2013
20120274806IMAGE CAPTURE APPARATUS AND CONTROL METHOD THEREOF - An image capture apparatus capable of auto bracketing. When a capture count for the auto bracketing is N (N is an integer of not less than three), a total of N−1 correction values are set by at least one on each of a positive side and negative side with respect to a reference value, and the apparatus sequentially expands or narrows a correction width serving as a difference between the reference value and each of the N−1 correction values in accordance with user's operation. When the capture count is two, the reference value and one correction value are set, and the apparatus sequentially increases or decreases the one correction value within the predetermined range in accordance with user's operation.11-01-2012
20110234845AUTO WHITE BALANCE CORRECTION VALUE CALCULATION DEVICE, METHOD, PROGRAM, AND IMAGE PICKUP DEVICE - A normal AWB (auto white balance) correction value is calculated based on inputted image data. Further, a face area is identified from the inputted image data and a face AWB correction value is calculated based on image data in the face area. Then, first feature data and second feature data are extracted from the inputted image data and image data in the face area, respectively. A total AWB correction value is calculated in accordance with at least one of the face AWB correction value and the normal AWB correction value based on a comparison result of the first feature data and the second feature data. Thus, an erroneous correction can be prevented in an AWB correction using a face detection function.09-29-2011
20110234844IMAGE SENSING APPARATUS AND METHOD OF CONTROLLING THE APPARATUS - This invention makes it possible to provide a technique for suppressing a decrease in resolution of a sensed image even when an image sensor on which solid-state image sensing elements with different sensitivities are arranged is used. A demosaic unit obtains a color component of a given pixel, sensed at the first sensitivity, by performing interpolation calculation using color components of pixels each of which is adjacent to the given pixel and is sensed at the first sensitivity. The demosaic unit also obtains a color component of a given pixel, sensed at the second sensitivity, by performing interpolation calculation using color components of pixels each of which is adjacent to the given pixel and is sensed at the second sensitivity.09-29-2011
20110234843Signal processing device, signal processing program and electronic camera - The present invention includes a color converting section carrying out color conversion processing and a coefficient correcting section setting a correcting coefficient group to a coefficient group of the color conversion. The coefficient correcting section sets a local area containing a pixel to be processed, and calculates “feature information of the local area” containing at least one of averaged color information, averaged luminance information, and flatness on the basis of the pixel signals of the local area. The coefficient correcting section determines a correcting coefficient group to be used for the pixel to be processed on the basis of the feature information of the local area. With this construction, the present invention suppresses influence of noise when changing the color conversion processing for each pixel.09-29-2011
20110234842IMAGE PROCESSING DEVICE - An image processing device that corrects a pixel value in image data, includes: an input unit that inputs image data having a plurality of color components and including a plurality of pixels each holding one color component; a calculation unit that calculates a maximum value among pixel values of a plurality of same-color neighboring pixels each holding a color component identical to a color component held in a processing target pixel selected from the pixels included in the image data and pixel values of a plurality of different-color neighboring pixels each holding a color component different from the color component held in the processing target pixel, which take up positions closer to the processing target pixel than the plurality of same-color neighboring pixels; and a correction unit that compares a pixel value of the processing target pixel with the maximum value and replaces the pixel value of the processing target pixel with the maximum value if the pixel value of the processing target pixel is greater than the maximum value.09-29-2011
20120281109PHOTOGRAPHING SYSTEM FOR PERFORMING COLOR CORRECTION OF AN IMAGE OF A SUBJECT USING SPECTROSCOPIC INFORMATION OF THE SUBJECT - A photographing system for photographing a subject includes a color information detecting section for detecting color information of the subject, a color image capturing section for capturing a color image of the subject, and a color correcting section for performing color correction of a color image captured by the color image capturing section from corresponding position information of the color information detecting section and the color image capturing section so as to enable highly accurate color correction.11-08-2012
20120281108IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - An image processing apparatus divides image data captured while a flash light is not emitted into a plurality of areas, calculates color evaluation value for each of the divided areas. The apparatus divides image data captured while the flash light is emitted into a plurality of areas and to calculate color evaluation value for each of the divided areas. The apparatus determines a movement for each of the plurality of areas in accordance with the calculated color evaluation value and the calculated color evaluation value. The apparatus performs white balance processing into image data in accordance with the determined movement.11-08-2012
20130155274AUTO WHITE BALANCE ADJUSTMENT SYSTEM, AUTO WHITE BALANCE ADJUSTMENT METHOD, AND CAMERA MODULE - According to one embodiment, a white balance fine adjustment starting instruction unit determines whether to start fine adjustment in white balance using a first threshold value. The white balance fine adjustment starting instruction unit determines whether to keep on performing the fine adjustment using a second threshold value. The second threshold value is set for the fine adjustment based on a second color judgment gate. The second color judgment gate defines the range of a target color temperature in white balance adjustment for each light source.06-20-2013
20130155275IMAGE CAPTURING APPARATUS, IMAGE CAPTURING METHOD, AND COMPUTER-READABLE RECORDING MEDIUM STORING IMAGE CAPTURING PROGRAM - An image capturing apparatus includes: an image capturing device in which a plurality of pixels having sensitivity to visible light and illuminating light in a certain wavelength range are arranged and that captures a moving image having a plurality of frames; a radiation device that radiates the illuminating light onto an image capturing region of the image capturing device; and a processor that executes a procedure, the procedure comprising: selecting, from among a plurality of frames captured by the image capturing device, a frame captured during an OFF period of the radiation device, and outputting the selected frame as a frame representing a visible image of the image capturing region.06-20-2013
20130155276IMAGE CAPTURING APPARATUS, AND CONTROL METHOD AND PROGRAM THEREFOR - To allow an AF mode to be quickly changed when the AF mode can be changed among a plurality of AF modes.06-20-2013
20130182142APPARATUS AND METHOD FOR IMAGE PROCESSING - An image processing apparatus and an image processing method are provided. The image processing apparatus includes a sample unit, an amplifier, an analog to digital converter, and a white balance unit. The sample unit is for sampling a pixel to obtain a pixel voltage. The amplifier is for amplifying the pixel voltage according to an analog gain. The analog to digital converter is for converting the amplified pixel voltage into digital pixel data, the digital pixel data including a number of first sub-pixel data which are corresponding to different colors. The white balance unit is for obtaining a number of second of sub-pixel data from white balance compensating the first sub-pixel data. The first sub-pixel data are white balance compensated respectively according to the analog gain and a number of white balance gains which are corresponding to different sub-pixels.07-18-2013
20130182143APPARATUS AND A METHOD FOR PROCESSING A MOVING IMAGE, AND A NON-TRANSITORY COMPUTER READABLE MEDIUM THEREOF - According to one embodiment, an image processing apparatus includes an acquisition unit, a clustering unit, a detection unit, and a correction unit. The acquisition unit is configured to acquire a moving image including a plurality of frames. The clustering unit is configured to cluster frames having a similar scene to the same group in the moving image. The detection unit is configured to detect at least one object region from each frame clustered to the same group, and to calculate a color distribution of the object region of the each frame. The correction unit is configured to select a typical color distribution of the object region from the color distribution of the each frame, and to correct a color of the each frame clustered to the same group, based on the typical color distribution.07-18-2013
20130120608LIGHT SOURCE ESTIMATION DEVICE, LIGHT SOURCE ESTIMATION METHOD, LIGHT SOURCE ESTIMATION PROGRAM, AND IMAGING APPARATUS - A light source estimation device includes: a light-source-estimation area setting section configured to detect a background in an image and to set a light-source-estimation area on the basis of a result of the background detection; and a light source estimation section configured to estimate a type of a light source when the image is captured on the basis of the light-source-estimation area.05-16-2013
20130194450IMAGE CAPTURING APPARATUS - An image capturing apparatus can use a reading time from an image sensor efficiently. To achieve the object, the image capturing apparatus includes an image capturing unit which separates a color image of a subject being captured by an image sensor having pixels of colors into three or more fields and outputs said three or more fields successively, and an image processing unit which generates a low-resolution image which is lower in resolution than the color image obtained by the image capturing unit, based on output of one or more fields among said three or more fields, said one or more fields being able to extract color information of all the colors, wherein the image processing unit starts generation of the low-resolution image in a period in which fields other than said one or more fields for generating the low-resolution image are read.08-01-2013
20130201363SYSTEMS FOR CONSTANT HUE AND ADAPTIVE COLOR CORRECTION IMAGE PROCESSING - An electronic device may have a camera module. The camera module may capture images. The electronic device may include image processing circuitry that color corrects the images. The image processing circuitry may desaturate the images globally and/or spatially based on global and/or spatial noise levels of the image. The image processing circuitry may desaturate the images substantially without changing the hue of the images. The image processing circuitry may generate a color correction matrix with constant hue in real time and may color correct images in real time as the images are captured by the camera module.08-08-2013
20130100313IMAGE PROCESSING DEVICE AND STORAGE MEDIUM STORING IMAGE PROCESSING PROGRAM - An image processing device includes an imaging unit generating RAW image data of a shot image and a gradation conversion unit. The imaging unit includes an imaging sensor which converts an image of a subject into an electrical signal. Then the gradation conversion unit performs gradation conversion according to a shooting condition for each of color signals based on a pixel array of the imaging sensor on the RAW image data of continuously shot images. Thus, it is possible to efficiently compress the RAW image data of continuously shot images.04-25-2013
20130100312IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD - An image processing device may include an image processing pipeline in which at least a magnification chromatic aberration correction processing unit that corrects magnification chromatic aberration of an imaging optical system, a distortion aberration correction processing unit that corrects distortion aberration of the imaging optical system, and an imaging processing unit that performs image processing with respect to image data and outputs image processed-image data to the distortion aberration correction processing unit are included in one pipeline, magnification chromatic aberration of the image data having been corrected by the magnification chromatic aberration correction processing unit, a sequencer that controls operations of respective elements included in the image processing pipeline, and a distortion correction range calculation unit that calculates a distortion aberration correction input range.04-25-2013
20120086830IMAGE PROCESSING DEVICE, WHITE BALANCE CORRECTION METHOD, AND IMAGING DEVICE - An image processing device of the present invention comprises: an image combining section for combining a plurality of combination image data and generating combined image data; a WB setting section for performing setting for white balance correction processing; an image WB gain calculation section for calculating image WB gain respectively for the plurality of combination image data in accordance with setting of the WB setting section; a combined image WB gain calculating section for calculating combined image WB gain for the combined image data in accordance with information relating to a combination ratio for the image combining section and image WB gain for the respective plurality of combination image data; and a WB correction section for carrying out white balance correction for image data according to the combined image WB gain.04-12-2012
20120086829IMAGE PROCESSING UNIT, IMAGE PROCESSING METHOD, AND IMAGE PROCESSING PROGRAM - An image processing unit includes a memory unit, a comparative image generator to generate a comparative image from a non-reference image, an image divider to divide a reference image, a non-reference image, and a comparative image into image blocks of a predetermined size, a motion data calculator to calculate motion data between the reference image and comparative image, an average calculator to calculate an average of pixel output values for each image block of the reference image and the comparative image, a threshold determiner to determine a threshold for synthesis determination according to the average of pixel output values of an image block of the reference image, a synthesis determiner to determine whether or not the image blocks of the reference image and of the non-reference image are suitable for synthesis, and a ratio determiner to determine a synthesis ratio of the image blocks determined as suitable for synthesis.04-12-2012
20120086828WHITE BALANCE METHOD AND WHITE BALANCE DEVICE - Disclosed are a white balance device and a white balance method. The device comprises a unit used to extract background pixels of an image; a unit used to obtain representative color of background; a unit for determining a global magnification ratio of the background pixels; a unit used to carry out pre-adjustment with regard to original color of each of the background pixels; a unit used to, for each of the background pixels, determine expected final background color of the corresponding background pixel, and then determine an accurate magnification ratio of the corresponding background pixel; and a unit used to, for each of the background pixels, carry out adjustment with regard to the original color of the corresponding background pixel by using the accurate magnification ratio of the corresponding background pixel.04-12-2012

Patent applications in class Color balance (e.g., white balance)

Patent applications in all subclasses Color balance (e.g., white balance)