Patent application number | Description | Published |
20120328095 | IMAGE DECRYPTION APPARATUS AND IMAGE DECRYPTION METHOD - An image decryption apparatus includes: an interface unit that acquires an encrypted image; and a processor adapted to: specify a block not presenting unevenness in brightness and a block presenting unevenness in brightness, among a plurality of first blocks into which the encrypted image is divided, and generate a decrypted image by moving each pixel of the encrypted image, in accordance with a predetermined rule; select, from among the second blocks located near the block of interest in a plurality of second blocks into which the decrypted image is divided, at least one second block that is included in the block not presenting unevenness in brightness on the encrypted image prior to generation of the decrypted image, as a reference value calculation block; and correcting the value of each pixel included in the block of interest, using the values of pixels included in the reference value calculation block. | 12-27-2012 |
20130028465 | DIGITAL WATERMARK EMBEDDING APPARATUS AND METHOD - An apparatus includes: a generator which generates a first pattern including a plurality of pixels having a first value, with an area of the first pattern changing in a constant cycle, and, a phase of cyclical change of the area changing based on a value of a symbol included in an inputted digital watermark information; a generator which generates a second pattern including a plurality of pixels having a second value, with an area of the second pattern changing with a frequency characteristic that is different from the cycle of change of the area; and a unit which superimposes the first and the second pattern into each image area of images in time series constituting an inputted video image to correct a value of each pixel in an image area to which the first or the second pattern is superimposed according to the first and the second value. | 01-31-2013 |
20130100502 | APPARATUS AND METHOD FOR PROCESSING IMAGES - An area designation unit designates a processing area within an input image. An image processing unit performs predetermined processing on the processing area. A marker area detection unit detects a marker area in the input image, the marker area being capable of accommodating a marker that demarcates the processing area. A marking unit determines a position in the marker area for placing the marker, based on priority conditions. | 04-25-2013 |
20130148842 | DIGITAL-WATERMARK EMBEDDING DEVICE, DIGITAL-WATERMARK EMBEDDING METHOD, AND DIGITAL-WATERMARK DETECTING DEVICE - A digital-watermark embedding device includes a content obtaining unit that obtains content; a watermark-information obtaining unit that obtains digital-watermark information; a generating unit that generates a synchronization flag on a basis of the digital-watermark information; and an embedding unit that embeds the digital-watermark information and the synchronization flag into the content. | 06-13-2013 |
20130170695 | DIGITAL WATERMARK EMBEDDING APPARATUS, DIGITAL WATERMARK EMBEDDING METHOD, AND DIGITAL WATERMARK DETECTION APPARATUS - A digital watermark embedding apparatus includes an interface unit which acquires video data and digital watermark information, and a processing unit which embeds the digital watermark information into the video data. The processing unit is adapted to: determine the position of a watermark pattern so that the watermark pattern moves with time according to the value of a symbol contained in the digital watermark information within a first moving range that contains at least a portion of a reference region on each image, and so that the average pixel value of the reference region overlapped with the watermark pattern varies in a periodic fashion as the watermark pattern moves; and correct the value of each pixel contained in a region where the reference region and the watermark pattern overlap each other by using the value of a corresponding one of the pixels contained in the watermark pattern. | 07-04-2013 |
20130251143 | IMAGE ENCRYPTION SYSTEM AND IMAGE DECRYPTION SYSTEM - An image encryption system includes an encrypter configured to generate an encrypted image including an encrypted area by encrypting a partial area of an input image; an identification information generator configured to generate identification information for identifying the encrypted area based on an image of the encrypted area; and a registration unit configured to register the identification information and a decryption key for decrypting the encrypted area by making an association between the identification information and the decryption key. | 09-26-2013 |
20140016775 | IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - An image processing apparatus includes: a dividing unit dividing at least one region on a digitalized image into multiple blocks; a scrambling unit producing an encrypted image by rearranging each block; a pixel value judging unit judging, for each block on the encrypted image, whether a difference between a statistically representative value of a pixel value of a first region included in the block and a statistically representative value of a pixel value of a second region is no smaller than a predetermined value, the second region being included in a block adjacent to the block and being adjacent to the first region; and a pixel value converting unit converting the pixel value of the first region in each block having the difference smaller than the predetermined value, while not converting the pixel value of the first region in each block having the difference no smaller than the predetermined value. | 01-16-2014 |
20140016817 | POSITION INFORMATION ADDING APPARATUS, POSITION INFORMATION ADDING METHOD, AND COMPUTER PROGRAM FOR ADDING POSITION INFORMATION AND POSITION DETECTION APPARATUS - A position information adding apparatus includes: a reference position setting unit which sets a plurality of reference positions for each of a plurality of pictures contained in digitalized video data; a region setting unit which sets a first position information adding region at a first position defined based on at least any of the plurality of reference positions and a second position information adding region at a second position different from the first position, for each of the plurality of pictures; and a position information embedding unit which embeds a first moving pattern which moves on the pictures in a first temporal period into the first position information adding region and a second moving pattern which moves on the pictures in a second temporal period into the second position information adding region. | 01-16-2014 |
20140023277 | IMAGE PROCESSOR AND IMAGE PROCESSING METHOD - An image processor includes an image degradation measuring unit configured to compute a degradation level of block data with respect to each of blocks within an image, a degradation determining unit configured to select, with respect to each of the blocks within the image, the block data of a target block of one of a plurality of the images based on degradation levels of respective block data of the target blocks of the plurality of the images, and an image synthesis unit configured to generate a sheet of an image by synthesizing the block data selected with respect to the blocks within the image. | 01-23-2014 |
20140108619 | INFORMATION PROVIDING SYSTEM AND METHOD FOR PROVIDING INFORMATION - An information providing system includes: a first device including a first memory and a first processor coupled to the first memory and configured to: transmit information regarding registered information registered in a server using user identification information for identifying a user, and receive information to be provided; and a second device including a second memory and a second processor coupled to the second memory and configured to: generate the information to be provided on the basis of the information regarding the registered information received from the first device, and transmit the information to be provided to the first device. | 04-17-2014 |
20140375692 | IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD - An image processing device includes a processor; and a memory which stores a plurality of instructions, which when executed by the processor, cause the processor to execute, taking an image containing an imaging lens; and embedding information in a display image based on image information of an object contained in the image. | 12-25-2014 |