Class / Patent application number | Description | Number of patent applications / Date published |
382270000 | Variable threshold, gain, or slice level | 10 |
20090060377 | IMAGE PROCESSING METHODS AND IMAGE PROCESSING APPARATUSES UTILIZING THE SAME - An image processing method applied in an image processor for processing an image including first pixels each having a corresponding pixel value. The pixel values of first pixels are distributed within a first distribution range. Second pixels comprise a region and are obtained from first pixels when a difference between pixel values of adjacent second pixels is less than a predetermined value. Gained pixel values are obtained after applying a gain to the image. An amount of distortion is obtained by summing up weighted differences between a reference pixel value and gained pixel value of first pixels having gained pixel value not distributed within first distribution range. A weighting factor does not equal to 1 when first pixel is within the region, and equals to 1 when first pixel is outside the region. The gain is updated according to the distortion. Processed image is obtained by applying the updated gain. | 03-05-2009 |
20090074322 | Method For Dynamically Adjusting The Images Of A Web Camera - A method for dynamically adjusting an image taken by a webcam. After providing a first threshold value, an environmental reference value is calculated according to an exposure time and an average brightness value. The environmental reference value is compared with the first threshold value to determine whether to enter a noise-reduction mode to reduce noises of the image. | 03-19-2009 |
20100158407 | SYSTEM FOR NON-UNIFORMITY CORRECTION FOR IMAGE PROCESSING - A system for correcting image characteristic data from a plurality of pixels comprises at least one field programmable gate array (FPGA), a lookup table, and a correction module. The FPGA may include a plurality of configurable logic elements and a plurality of configurable storage elements. The lookup table may be accessible by the FPGA and may store a plurality of correction components associated with each pixel, including a gain value, an offset value, and a bad pixel value. The correction module may be formed from the configurable logic elements and configurable storage elements and may receive the characteristic data and the correction components. The correction module may generate corrected data for each characteristic data by utilizing the gain value, the offset value, and the bad pixel value. | 06-24-2010 |
20100183241 | RESTORATION METHOD FOR BLURRED IMAGES USING BI-LEVEL REGIONS - A blind image restoration method restores a motion blurred image and a blur kernel is estimated based on an intrinsic bi-level image region of the motion blurred image. In addition, the blur kernel is iteratively estimated. When the blur kernel is iteratively estimated, bi-level image priors are introduced to achieve better image restoration. | 07-22-2010 |
20100209015 | IMAGE CORRECTION APPARATUS, IMAGE CORRECTION METHOD, AND IMAGE CORRECTION PROGRAM - An image correction apparatus stores therein a plurality of correction curves for determining a correction amount, calculates a feature value of average brightness in an input image, determines whether the calculated feature value is equal to or greater than a first threshold, and, for the input bright image with the feature value equal to or greater than the first threshold, counts the number of pixels equal to or less than a second threshold in the input image. The image correction apparatus calculates a feature value of average brightness from pixel values of the counted pixels, on a basis of whether the calculated feature value is equal to or greater than a third threshold, or, whether the number of pixels equal to or greater than the third threshold is a fourth threshold or more, obtains a correction curve to correct the input image. | 08-19-2010 |
20110158552 | QUALITY ADJUSTING APPARATUS AND IMAGE QUALITY ADJUSTING METHOD - An image quality adjusting apparatus includes: an output module configured to alternately output, in time division, first and second frame-rate-converted frame images that are obtained by converting first and second input frame images to increase a frame rate, respectively; a detecting module configured to detect features of each of the first and second input frame images; and an image quality adjusting module configured to perform an image quality adjustment on the first frame-rate-converted frame image based on the detected features of the first input frame image and performing an image quality adjustment on the second frame-rate-converted frame image based on the detected features of the second input frame image. | 06-30-2011 |
20140050418 | SYSTEM AND METHOD FOR IMAGE COMPRESSION IN X-RAY IMAGING SYSTEMS - An imaging system includes an analog-to-digital converter configured to convert an analog pixel value into a first digital pixel value. The imaging system also includes an index value source configured to receive the first digital pixel value from the analog-to-digital converter and to generate a digital index value based on a comparison of the first digital pixel value to a digital reference value. In addition, the imaging system includes a transmitter in communication with the index value source and configured to transmit the digital index value. Further, the imaging system includes an image processing component configured to receive the digital index value and to generate a second digital pixel value based at least in part on the received digital index value and a lookup table of the image processing component. | 02-20-2014 |
20140133777 | THRESHOLD SETTING APPARATUS, THRESHOLD SETTING METHOD AND RECORDING MEDIUM IN WHICH PROGRAM FOR THRESHOLD SETTING METHOD IS STORED - Disclosed is a threshold setting apparatus including a creating unit which creates a plurality of images of tones by performing a tone conversion process on an original image including a subject by using a plurality of temporary thresholds which are different from each other, a subject detection unit which detects the subject in each of the plurality of images of tones which are created by the creating unit, an evaluation value calculating unit which calculates evaluation values relating to likeness to the subject from the plurality of subjects detected by the subject detection unit and associates the evaluation values with the temporary thresholds, and a setting unit which sets a threshold suited for the tone conversion of the original image based on the plurality of evaluation values calculated by the evaluation value calculating unit. | 05-15-2014 |
382272000 | Based on a local average, mean, or median | 1 |
20090097777 | DIGITAL IMAGE TONE REMAPPING METHOD AND APPARATUS - A digital image tone remapping method is disclosed. The method includes computing an average luminance value of a digital image; generating a preliminary tone mapping function according to the average luminance value; generating a luminance statistic of the digital image; determining new remapped values for a plurality of skeleton luminance values according to the preliminary tone mapping function and the luminance statistic; generating a final tone mapping function according to the new remapped values and the plurality of skeleton luminance values; and remapping the digital image through the final tone mapping function. The present invention also discloses an apparatus performing the method. | 04-16-2009 |
382273000 | Based on peak levels | 1 |
20080212891 | One dimensional feature enhancement - A method and device of feature enhancement for digital image processing. A predefined feature in one dimension of the image is searched to obtain several peaks, and each peak is either a local maximum or local minimum. Each peak is enhanced by adding an offset to increase the local maximum or decrease the local minimum. The offset of each peak is computed by calculating the difference between each peak and the preceding peak, then multiplying by a preset ratio. | 09-04-2008 |