Abstract: An image forming apparatus stores image data generated from a document scanned by a scanner on a removable medium. When storage on the removable medium is not completed, part of the image data that has been stored by that time is deleted from the removable medium.

Abstract: Deriving illumination compensation parameters and detection of illumination dominant transitions types for video coding and processing applications is described. Illumination changes such as fade-ins, fade-outs, cross-fades, and flashes are detected. Detection of these illumination changes is then used for weighted prediction to provide for improved illumination compensation.

Abstract: The present invention provides a display panel and a display method thereof, and a display device. The display panel comprises a plurality of sub-pixel arrays, each sub-pixel array is composed of eight sub-pixels arranged in two rows and four columns. In each sub-pixel array, four sub-pixels in a same row include three color sub-pixels and one compensation sub-pixel, the three color sub-pixels include one red sub-pixel, one green sub-pixel and one blue sub-pixel, colors of two sub-pixels in a same column are different from each other. The display method comprises: causing a plurality of color sub-pixels with the same color near a sub-pixel position to display, so that the required color component is displayed at the sub-pixel position under an average effect of the color sub-pixels with the same color; and performing display compensation on a sub-pixel position by using a plurality of compensation sub-pixels near the sub-pixel position.

Abstract: Systems and methods are disclosed herein to a package essence analysis method comprising receiving, by a computer, first and second video files; indexing, by a computer, the first and second video files; decoding, by a computer, a selected frame of the first video file by referencing a first frame image using the index of the first video file; decoding, by a computer, a selected frame of the second video file by referencing a second frame image using the index of the second video file; and performing, by a computer, video quality analysis by comparing the decoded selected frame of the first video file to the decoded selected frame of the second video file.

Abstract: In the dynamic gamut display systems, video input data is processed to extract metrics indicative of the gamut occupancy of the frame pixels. The extracted metrics are used to form a set of scale factors to be used by the display to synthesize an adapted gamut that matches the frame pixel color gamut from the native color primaries of the display. The generated gamut adaptation scale factors are used to convert the frame pixels' values to the adapted gamut which are provided to the display for modulation using the synthesized adapted gamut for each video frame or a sub-region of a video frame. The methods enable increased display brightness, reduced power consumption and reduced interface and processing bandwidth. Also disclosed is an adapted video frame data formatting method that maps the benefits of the adapted gamut into a reduced frame data size enabling bandwidth savings when used for video distribution.

Abstract: A display device includes a controller and a display. The controller is configured to receive a first color coordinate control signal and a second color coordinate control signal, and generate an image data signal by adjusting an input image signal according to the first and second color coordinate control signals. The display is configured to display an image according to the image data signal. The first and second color coordinate control signals are transmitted to the display device by a pair of three-dimensional (3D) glasses.

Abstract: Function approximation circuitry approximates an arbitrary function F over discrete inputs. Discrete values of the function F are stored in a lookup table (LUT) component for various inputs. An addressing module generates an address from an input. An interpolation factor module generates an interpolation factor from the input. An interpolation module generates an output, which is an approximate value of the function F for the input, from the interpolation factor, and from outputs of the LUT component when the LUT component is addressed by the address.

Abstract: An image data processing method and a device thereof are disclosed, and the method includes: receiving and executing a gamma correction process for first red, green and blue sub-pixel image data to obtain second red, green and blue sub-pixel image data; generating a first white sub-pixel image data, and third red, green and blue sub-pixel image data according to the second red, green and blue sub-pixel image data; and obtaining fourth red, green and blue sub-pixel image data and a second white sub-pixel image data through an inverse gamma conversion process.

Abstract: The present invention is a posture estimation device for estimating a wide variety of 3-dimensional postures by using a skeletal model. The posture estimation device (200) has: a skeletal backbone estimation unit (230) for estimating the position of a feature location of a person within an acquired image; a location extraction unit (240) which generates a likelihood map indicating the certainty that a location other than the feature location of the person exists in the acquired image based on the position of the feature location of the person; and a skeletal model evaluation unit (250) for evaluating, based on the likelihood map, a candidate group which includes a plurality of 2-dimensional skeletal models as candidates and such that each 2-dimensional skeletal model is configured from a line group representing each location and a point group representing coupling between each location and corresponds to one posture of the person.

Abstract: An image processing system adaptable to a dual-mode image device includes an adaptive color correction system coupled to receive an image, and configured to adaptively correct for color distortion according to a chief ray angle (CRA) of a pixel of the image and an IR signal from the dual-mode image device associated with a light source.

Abstract: According to an aspect, a display device includes: an image display panel; a color conversion device including a signal processing unit and a signal output unit; a planar light-source device; and a light-source-device control unit. The signal processing unit includes a color conversion circuit that converts an input signal in a reference color area into a converted input signal generated in a definition color area where a chromaticity point of at least one of a first color, a second color, and a third color is inside of a reference color area, and a four-color generation circuit that generates an output signal and a light-source-device control signal from the converted input signal. The signal output unit outputs the drive signal to each sub-pixel based on the output signal. The light-source-device control unit outputs a drive voltage for emitting white light on the planar light-source device based on the light-source-device control signal.

Abstract: Certain aspects of a method and system for compression and decompression for handling web content may include a communication system that comprises a server in a server computing cloud that coordinates operation of one or more set-top boxes. The server may be operable to receive a request to display one or more frames of web content from the one or more set-top boxes. The server may be operable to receive one or more parameters associated with the one or more frames of the requested web content from the one or more set-top boxes. The server may be operable to dynamically encode at least a portion of one or more frames of the requested web content into one or more color spaces based on the received one or more parameters.

Abstract: An image scaling processor includes a coefficient table storing interpolation coefficients, a multiplier that multiplies each of pieces of pixel data constituting input image data and each of the interpolation coefficients stored in the coefficient table, an adder that repeatedly adds pieces of multiplied data output from the multiplier and obtains a total sum of the pieces of multiplied data for a predetermined number of the pieces of pixel data, a selector that outputs a total sum of the pieces of multiplied data at a timing at which the total sum of the pieces of multiplied data is obtained for the predetermined number of the pieces of pixel data, and a shift circuit that shifts an output of the selector to adjust a bit count of the output image data to a bit count of the input image data.

Abstract: A combination selecting unit (20) creates a plurality of element combinations of which each is a combination of two display elements, and selects element combinations in which a distance between two display elements is a threshold value or less. A combination classifying unit (30) selects element combinations, in which any one of color difference, saturation difference, brightness difference, and both brightness and saturation of a color combination of two display elements exceed respective predetermined threshold values, from the element combinations. Then, the combination classifying unit (30) calculates an appearance ratio for each color combination. The appearance ratio is a ratio of the number of the element combinations belonging to the color combination to the total number of the element combinations created by the combination selecting unit (20).

Abstract: A system enhances reduced resolution grey scale luminance data for display on a monitor. An interface receives a pixel grey scale luminance value represented by a first number of bits exceeding a display monitor input bit length. A data processor indicates a difference comprising the number of bits. In response to the difference, the data processor derives R, G, B pixel luminance values by adjusting one or more of the R, G, B pixel luminance values to provide corrected R, G, B pixel luminance values representing the grey scale luminance value and at least one of the corrected R, G, B pixel luminance values is different from remaining ones of R, G, B pixel luminance values. The data processor outputs the corrected R, G, B pixel luminance values for display on R, G, B channels of the monitor.

Abstract: Methods and graphics processing pipelines for performing inline chroma downsampling of pixel data. The graphics processing pipeline includes a chroma downsampling unit for performing buffer-free downsampling of chroma pixel components. A vertical column of chroma pixel components is received in each clock cycle by the chroma downsampling unit, and downsampled chroma pixel components are generated on every clock cycle or every other clock cycle. Vertical, horizontal, and vertical and horizontal downsampling can be performed without buffers by the chroma downsampling unit. A programmable configuration register in the chroma downsampling unit determines the type of downsampling that is implemented.

Abstract: A digital signal processor and method are disclosed having an instruction set with one or more non-linear functions using a look-up table of reduced size. A digital signal processor evaluates a non-linear function for a value, x, by obtaining two or more values for the non-linear function that are near the value, x, from at least one look-up table, wherein the at least one look-up table stores a subset of values for the non-linear function; and interpolating the two or more obtained values to obtain a result, y. The interpolation may comprise, for example, a linear interpolation or a polynomial interpolation. In a further variation, a modulo arithmetic operation can be employed for a periodic non-linear function.

Abstract: The present invention relates to the art of color space conversion technique, and discloses a method for processing RGB data and a system for the same. The method comprises: S1: converting input values of three colors RGB into a HSV color space; S2: adjusting a brightness value V while keeping a hue value H and a saturation value S unchanged in the HSV color space; S3: converting the H, S, V values processed by step S2 from the HSV color space to the R, G, B, W color space to display. By converting the RGB color space to the HSV color space firstly, then enhancing the brightness V while keeping H, S unchanged in the HSV color space, and finally converting the HSV color space to the RGBW color space, it can be achieved that the brightness for display is enhanced while better hue, color saturation and natural color transition are maintained at the same time.

Abstract: The invention discloses a method for editing propagation of video and image content based on local feature structure preservation, comprising: mapping all pixels in the input original image and/or video key frames to a selected feature space; finding K nearest neighbor pixels for each pixel according to feature vectors' Euclidean distance in the selected feature space; using Locally Linear Embedding (LLE) dimension reduction to construct the locally linear relationship between each pixel and its K nearest neighbor pixels in the selected feature space; According to the present invention, it is possible to accurately perform such image or video processing as automatic color transformation, interactive color editing, gray image colorization, video cloning and image matting.

Abstract: A computer-implemented method includes presenting one or more user interface controls configured to receive selection of a first color space, from a plurality of first color spaces corresponding to media encodings for recording cinema or video data, and a second color space, from a plurality of second color spaces corresponding to output devices, receiving the selection, combining a first transform corresponding to the first color space and a second transform corresponding to the second color space, in accordance with the selection, to form a combined transform, and providing the combined transform for use in previewing the cinema or video data in accordance with the output devices corresponding to the selection.

Abstract: There is provided an image processing apparatus comprising: a common color reproduction range generation unit configured to select the data of interest as common color reproduction range data if the data of interest is determined by the first color reproduction range determination unit to fall within the color reproduction range of the first output device and is determined by the second color reproduction range determination unit to fall within the color reproduction range of the second output device; and a table correction unit configured to correct output values for respective grid points of a first color conversion table included in the image processing apparatus in accordance with differences between the reference values and the colorimetric values corresponding to the common color reproduction range data.

Abstract: A 3D image capturing device and a controller chip thereof. The controller chip includes a first and a second sensor interface, a pixel data synchronization module, a 3D image generator and an output interface. The first and second sensor interfaces are coupled to a first and a second 2D image capturing device, respectively, to receive a first and a second image. The pixel data synchronization module synchronizes the pixel data of the first and second images. Based on the synchronized first and second images, the 3D image generator generates a 3D-image. By the output interface, the 3D-image capturing device transmits the generated 3D image to be received by a host.

Abstract: A device includes converters for converting first image data of an RGB-type into second image data of a YCbCr-type, into third image data of the YCbCr-type, and into fourth image data of the RGB-type, wherein a CbCr-coordinate system has six regions defined by coordinates of a reference color and of six primary colors, and when coordinates of the second image data are located in a region defined by coordinates of the reference color, a first primary color, and a second primary color, the coordinates of the second image data are determined by the coordinates of the reference color, the first primary color, the second primary color, coordinates of a target reference color corresponding to those of the reference color, coordinates of a first target primary color corresponding to those of the first primary color, and coordinates of a second target primary color corresponding to those of the second primary color.

Abstract: A method for viewing a simulated light output generated for a first display on a second display includes a variety of steps. First, the simulated light output is generated based on qualities of the first display. Next, the simulated light output is compensated for color differences, temporal differences, luminance differences including gamma difference, and differences in viewing environment between the first and the second display, in real-time. Then, the simulated light output that has been compensated for the differences and for viewing environment is output for the second display.

Abstract: This disclosure generally relates to digital image and video signal processing, and more particularly to methods and systems for dynamic brightness correction. In one embodiment, an electronic circuit configured to perform an image correction method is disclosed, the method comprising: obtaining a pixel value of a color space component from an image; determining whether to perform mid-tone correction for the pixel value of the color space component; calculating, via the electronic circuit, a corrected pixel value based on the determination of whether to perform the mid-tone correction for the pixel value of the color space component; and outputting the corrected pixel value. The color space component may be one of: an Intensity component from a Hue-Saturation-Intensity color space; a Value component from a Hue-Saturation-Value color space; a Lightness component from a Hue-Saturation-Lightness color space; and a Brightness component from a Hue-Saturation-Brightness color space.

Abstract: A digital video stream of color images intended to be displayed on a matrix screen is formed of macropixels having at least four subpixels each. During processing, the color components of each image are transformed into an RGB format based on a polygonal representation of the color components and designed for the display of images using at least four colors by activating the four subpixels. The color components of the image are adapted in the course of the transformation.

Abstract: A first image stream has a first dynamic range and a first color space. First and the second image streams are received in a layered codec. The second image stream has a second dynamic range, which is higher than the first dynamic range. The first image stream is in the codec's base layer; the second image stream is in its enhancement layer. The first image stream is encoded to obtain an encoded image stream, which is decoded to obtain a decoded image stream. The decoded image stream is converted from the first non-linear or linear color space to a second, different color space to obtain a color converted image stream. A higher dynamic range image representation of the color converted image stream is generated to obtain a transformed image stream. Inverse tone mapping parameters are generated based on the transformed image stream and the second image stream.

Abstract: Image data representing an image captured by a video endoscopic device is converted from a first color space to a second color space. The image data in the second color space is used to determine the location of features in the image.

Abstract: A circuit for color space conversion and associated method compresses a portion of an xvYCC color space exceeding an sRGB color space into the sRGB color space via a simplified circuit design when a conversion from the xvYCC color space to the sRGB color space is performed, thereby improving visual effects. The circuit for color space conversion includes a conversion unit converting a pixel signal from the xvYCC color space to the sRGB color space. During the conversion, the conversion unit generates a pixel component on each dimension of the sRGB color space, and compresses the pixel component to output a compressed pixel component when a value of any pixel component is in a compression interval. The compressed pixel component does not exceed a defined range on a corresponding dimension of the sRGB color space.

Abstract: A system and method for effectively encoding and decoding a wide-area network based remote presentation scheme makes use of a scalable video codec (SVC) to encode multiple screen data. A RGB frame of each screen is converted into YUV444 which is subsequently converted into two YUV420 frames. The V frame of the YUV444 is divided into four sub-frames. Two of those sub-frames are combined with the Y frame to create the first YUV420 frame. A second YUV420 frame is created by combining the remaining two V sub-frames with the U frame. The two YUV420 frames are encoded separately by using SVC or together by using Multi-View Codec. An SVC decoder receives and decodes two such YUV420 frames. Those decoded YUV420 frames are then used to obtain the YUV444 frame which is subsequently converted in to RGB frame to display the image on a screen.

Abstract: A system, method and medium correcting a display image. The system includes a parameter calculation module to calculate a plurality of parameters required for a transform of a first image, based on a plurality of characteristic differences between the first image and a second image, into which the first image is to be transformed to visually match the second image, a first characteristic transform module to transform a first characteristic of the first image using the plurality of calculated parameters, the transformation resulting in an unrelated change to a second characteristic of the first image, and a second characteristic restoration module to restore the second characteristic changed by the transforming of the first characteristic.

Abstract: Techniques for accurate color representation of images stored within a social networking system. In an embodiment, an error metric and a target error threshold are determined. A binary search algorithm and a simulated annealing algorithm are performed. A color profile for transforming an image in a first color space to a second color space is created based on the binary search algorithm, the simulated annealing algorithm, the error metric, and the target error threshold. Determination of the error metric may comprise determining a frequency with which a color occurs in the image, assigning a weight to the color based on the frequency, and calculating the error metric based on the weight. Determination of the error metric may comprise dividing the image into a plurality of sections, assigning a plurality of importance values to the plurality of sections, and calculating the error metric based on the plurality of importance values.

Abstract: A system and techniques for converting a source image frame in a particular YUV format to another YUV format is presented. The system can include a texture component, a luminance component, and a chrominance component. The texture component can be configured to generate luminance input pixels and chrominance input pixels from the source image. The luminance input pixels can each include a luma component and the chrominance input pixels can each include a first chroma component and a second chroma component. The luminance component can be configured to generate luminance output pixels, where the luminance output pixels can each include a group of luminance input pixels. The chrominance component can be configured to generate chrominance output pixels, where the chrominance output pixels can each include a group of first chroma components or a group of second chroma components.

Abstract: There is provided a color processing apparatus comprising: a calculation unit configured to calculate, for each of a plurality of light sources, a first colorimetric value that is obtained by measuring a color having a spectral reflectance indicated by spectral reflectance information under the light source; a mapping unit configured to obtain, for each of the plurality of light sources, a second colorimetric value by mapping the first colorimetric value of the light source within a gamut under the light source; a color separation unit configured to obtain the output information from a plurality of the second colorimetric values, by adjusting the output information such that an error between a colorimetric value obtained by measuring a color output by the image output apparatus according to the output information under each of the light sources and the second colorimetric value for the light source is minimized.

Abstract: A system that adjusts chroma and luma values for a video signal is presented. During operation, the system receives a matrix of coefficients, which when applied to the chroma values and the luma values of a video signal produces substantially the same result as performing a sequence of discrete operations on the chroma values and the luma values, wherein the sequence of discrete operations includes one or more color-representation-conversion operations and one or more processing amplifier operations. For a given pixel of the video signal, the system performs a matrix-multiplication operation between a matrix representation of the chroma values and the luma values for the given pixel and the matrix of coefficients to produce a modified pixel.

Abstract: A color-unevenness inspection apparatus includes: an image pickup section picking up an image of an inspection target in a color-unevenness inspection; and an image generation section generating an uneven-color image by, in the picked-up image of the inspection target obtained by the image pickup section, calculating a chroma in each unit region and identifying an uneven-color region based on a magnitude of the calculated chroma. The color-unevenness inspection apparatus further includes: a calculation section calculating, for the uneven-color region in the uneven-color image, an evaluation parameter to be used in the color-unevenness inspection; and an inspection section performing the color-unevenness inspection based on the calculated evaluation parameter. The image generation section calculates the chroma, in each unit region of the picked-up image, while performing correction processing that reflects variations in color-unevenness visibility from color to color.

Abstract: A method for simulating a textured appearance on a uniform substrate includes using variable halftone dot orientations. A texture description is provided for generating electronic data representing a three-dimensional texture. Texture regions of the texture description are identified using pixel cells in the electronic data. Halftone dot orientations are assigned for each pixel cell based on a value of the pixel cell. The halftone dot orientation represents a recessed or a raised surface portion.

Abstract: A device 16 for displaying X-ray images, the device comprises a display 20 for displaying an X-ray image, a workstation 22 for processing image data and a user interface 24 for receiving commands from a user of the device. The user interface 24 is adapted for allowing the user to select a master image 34a and a slave image 34b from a plurality of images. The workstation 22 is adapted for transforming the slave image 34b by generating a color transformation 40 based on the master image 34a and the slave image 34b for optically adapting the slave image to the master image and by applying the color transformation 40 to the slave image 34b. The display 20 is adapted for displaying the transformed slave image 42.

Abstract: Display devices and systems are configured with display panels substantially comprising one of several embodiments of three primary color or multi-primary color subpixel repeating groups that are particularly suitable for directional display devices which produce at least two images simultaneously, such as autostereoscopic three-dimensional display devices or multi-view devices. Input image data indicating an image is rendered to a device configured with one of the illustrated subpixel repeating groups using a subpixel rendering operation.

Abstract: A pixel data conversion method for display with delta panel arrangement converts an input video signal into a temporary video signal which is a first RGB signal with 960 horizontal resolution in strip panel arrangement and converts the temporary video signal into an output video signal which is a RGB signal with 320 horizontal resolution in delta panel arrangement. Each line of the output video signal has 960 pixels, wherein a sequence of red pixel, green pixel, and blue pixel is repeatedly arranged for an odd-numbered horizontal line, and a sequence of green pixel, blue pixel, and red pixel is repeatedly arranged for an even-numbered horizontal line. The position of each pixel in an even-numbered horizontal line has a half-pixel dislocation to the position of each pixel in an odd-numbered horizontal line.

Abstract: A pixel data conversion method for display with delta panel arrangement converts an input video signal into a temporary video signal which is a first RGB signal with 640 horizontal resolution in a strip panel arrangement and converts the temporary video signal into an output video signal which is a RGB signal with 320 horizontal resolution in the delta panel arrangement. Each line of the output video signal has 960 pixels. A pixel size ratio is defined as a ratio of a pixel size of the delta panel to a pixel size of the strip panel. The 320 horizontal resolution is obtained by dividing the 640 horizontal resolution by the pixel size ratio and then by three.

Abstract: A method of processing an image signal includes: converting a source image signal into an image signal corresponding to a color space for a color gamut mapping; reducing a color gamut of the image signal; and mapping the image signal corresponding to colors within the reduced color gamut into an image signal corresponding to colors within a display color gamut, wherein the colors of the display color gamut are displayed by a display panel.

Abstract: A method is disclosed for compressing a sequence of initial digital values into a compressed sequence of compressed values, intending to restore these values into a decompressed sequence of decompressed values. For a first initial value of the sequence, the compressed value of the first initial value is equal to the first initial value and the decompressed value of the compressed value of the first initial value is equal to the first initial value.

Abstract: Methods and systems are provided for merging a plurality of video inputs resulting in a single coherent output. More specifically, in one exemplary embodiment, a device embeds alpha red green blue (ARGB) data in an RGB stream which allows for preservation of the alpha channel over the video interface link.

Abstract: A system for color space matching a plurality of signals is provided. The system can include a first and second sources operably connected to a first and second inputs, respectively. The first and second inputs can be operably connected to a switch (140). An external device identification (EDID) module (155) can be operably connected to the switch. A controller (150), having a plurality of display modes, can also be operably connected to the switch. Each of the plurality of display modes can have a corresponding unique EDID data structure stored in the EDID module, thereby providing a plurality of unique EDID data structures within the EDID module. The EDID module can select a single unique EDID data structure based upon the color space format of the second signal (125), and in response to the selection, the first source (190) can convert the first color space of the first signal (110) to the second color space format.

Abstract: Digital video communication system and method facilitate conservation of communication bandwidth are presented. A present invention method forwards sampled chrominance data to other components in the system. Pixel chrominance values are sampled in accordance with the sampling scheme. The sampled chrominance values (e.g., 422, 420, 411, etc.) are forwarded to another component. For example, a graphics processing unit performs sampling operations and forwards the chrominance sampled information to another component (e.g., a board, a display, etc.). The graphics processing unit can also perform color space conversion before forwarding the chrominance sampled information to the other component. The other component performs up-sampling. For example, a display can perform the up-sampling to generate synthesized full RGB values. The sampled chrominance data can be further compressed (e.g., MPEG, WMV, etc.) before forwarding the sampled chrominance data and before performing the up-sampling.

Abstract: A display control method of a display device involves detecting color characteristic parameters of one or more images to be displayed. The color characteristic parameters include RGB values that are compared with predetermined RGB values to obtain a comparison result. A working status of the color engine is controlled according to the comparison result.

Abstract: A device that may be used as a multi-color pixel is provided. The device has a first organic light emitting device, a second organic light emitting device, a third organic light emitting device, and a fourth organic light emitting device. The device may be a pixel of a display having four sub-pixels. The first device may emit red light, the second device may emit green light, the third device may emit light blue light and the fourth device may emit deep blue light. A method of displaying an image on such a display is also provided, where the image signal may be in a format designed for use with a three sub-pixel architecture, and the method involves conversion to a format usable with the four sub-pixel architecture.

Abstract: Techniques related to graphics rendering including techniques for improved multi-sampling anti-aliasing compression by use of unreachable bit combinations ae described.

Abstract: Systems and methods for controlling the output of a plurality of light sources. The system can include four or more light sources (e.g. light emitting diodes (“LEDs”)) and a controller. The light sources are included in, for example, a luminaire. The respective outputs of the plurality of light sources are controlled using a hue and purity (“HP”) control technique. The HP technique includes selecting a dominant hue (e.g., green, blue, red, etc.). The purity of the selected hue is then modified to include or remove wavelengths of light adjacent to the selected hue. For example, if the selected hue is green, gradually reducing the purity of the selected hue gradually increases the presence of cyan and amber in the output of the luminaire. As the purity is reduced further, additional wavelengths of light are included, but the output of the luminaire remains, in essence, green.