For at least one component of a digitized image, if a magnitude of a difference between a pixel component value and a representative image-cell-value is less than a threshold for each pixel of a subset of pixels of an image cell of a digitized image, the corresponding pixel component values of corresponding pixels of a corresponding processed image cell are set to the representative image-cell-value. Otherwise, at least the most significant portion of the corresponding pixel component values of the corresponding pixels of the corresponding processed image cell are set to the value of pixel component values of the digitized image.

In some examples, a print cartridge includes a memory device comprising quantized coefficients derived from a lossy compression, at a selected step size, of a difference color table including a plurality of difference nodes in which each difference node represents a difference value that is a difference of a value of a node of a color table and a value of a corresponding node of a reference table, the quantized coefficients useable to produce a reconstructed difference color table including a first set of difference nodes each representing a difference value that is within an error threshold at the selected step size, and a second set of difference nodes each representing a difference value that is outside an error threshold at the selected step size. The memory device further comprises corrective information to correct the second set of difference nodes of the reconstructed difference color table.

An improved color space (YHB model) for compressing image files is provided. An example method includes storing a sum of an unweighted first color value and an unweighted second color value for each pixel in a plurality of pixels of an image as a first channel, sub sampling, among the plurality of pixels, a difference between the first color value and the second color value as a second channel, sub sampling, among the plurality of pixels, a third color value as a third channel, and storing the first channel, the second channel, and the third channel as the compressed image. In some implementations, the original image may be split into a low frequency version and a high frequency version. The system may apply the YHB model to the high frequency version and apply a conventional model or a second variation of the YHB model to the low frequency version.

A printing system is disclosed. The printing system includes a color management unit including one or more color caches to store input colors and corresponding output colors and a color engine (CE) to receive the input colors and perform Force-X transformations to map an input color into an output color based on a pre-defined color parameter.

An image sensor may include a pixel array having an NM array of merged pixels arranged in a Bayer pattern, each merged pixel including an k*l matrix of unit pixels of a same color, where k and l are integers greater than two; and an image signal processor to process signals output by the pixel array in accordance with a normal mode or a zoom-in mode. In the zoom-in mode, signals from the pixel array may be remosaiced such that signals corresponding to the unit pixels are arranged in a p*q matrix of unit pixels of a same color, wherein p is a non-negative integer that is less than k and q is a non-negative integer less than 1, the p*q matrixes being arranged in a Bayer pattern.

A method is described to greatly improve the efficiency of and reduce the complexity of image compression when using single-sensor color imagers for video acquisition. The method in addition allows for this new image compression type to be compatible with existing video processing tools, improving the workflow for film and television production.

An encoding device comprises: a dividing unit configured to divide an encoding unit of an image into a plurality of regions; a header generation unit configured to generate, for each boundary that partitions each of the plurality of regions along a direction which crosses a line, a boundary header used to identify the boundary; a trajectory generation unit configured to generate a piece of trajectory information representing a displacement of the boundary associated with progress of a line; and an aligning unit configured to, when generating encoded data including generated boundary headers and generated pieces of trajectory information, change, in accordance with the number of boundaries, a manner in which the generated boundary headers and the generated pieces of trajectory information are aligned.

A plurality of source image pixels of a subset of image pixels of a source image cell of a selected color component of a digitized image are processed to generate a corresponding color component for each corresponding processed image pixel of a corresponding processed image cell, wherein the processed image pixels of the processed image cell are in one-to-one correspondence with the source image pixels of the source image cell, a bit length of the color component of each processed image pixel of the processed image cell exceeds a bit length of color component of each source image pixel the source image cell, the processed image cell contains substantial color information in excess of what could be contained within a bit length equal to the bit length of each the source image pixel of the color component of the source image cell.

An object is to appropriately control a fixing process while making an attempt to increase speed by improving the PPM in an electrophotographic image forming apparatus. In the electrophotographic image forming apparatus, the control unit decompresses compressed quantized raster image data in units of pages. Then, the control unit derives an image feature quantity from decompressed raster image data in units of pages and notifies the printing unit of the derived image feature quantity. Then, the control unit transfers the decompressed raster image data to the printing unit in units of pages in response to an image transfer request from the printing unit. The printing unit sets a parameter relating to a fixing process in the printing processing based on the notified image feature quantity. Then, the printing unit performs the printing processing in accordance with the set parameter for the decompressed raster image data received from the control unit.

An information processing apparatus connected to an image forming unit and a reading unit is provided. The apparatus generates image data based on document data described in a page description language, encodes the document data to be multiplexed on the image data, outputs the image data to the image forming unit, restores the multiplexed document data from the image data read by the reading unit, and saves the image data read by the reading unit and the document data restored by a restoration unit.