Abstract: A method and an arrangement for improving the digital-signal-generated grayscale resolution of a monochrome visual display unit (3) to which the digital signals from an image source (1) can be supplied over n-bit wide RGB channels (2). Measures are proposed that make it possible to display distinguishable grayscale gradations on the visual display unit (3) regardless of whether a grayscale signal (6; 10) or RGB color signals (12, 13, 14) are transmitted to the visual display unit (3).

Abstract: A color data setting unit that sets a plurality of sets of fifth color data that are defined in a first color space in one to one correspondence with a plurality of fourth color data sets. An identifying unit identifies some of first reference points, that are in proximity to the fifth color data set for each of second reference points. A calculation unit calculates, for each of all the second reference points, color differences between the fifth color data set for the each second reference point and the some of the first reference points. A determining unit determines, for each of the first reference points, a single fifth color data set that has the smallest color difference among all the color differences that are calculated with respect to the each of the first reference points. A registering unit registers, at each of the first reference points, the fourth color data set that is set in correspondence with the single fifth color data sets.

Abstract: A color conversion method and apparatus for a multi-primary display (MPD) are provided with analyzing an input image to determine a transformation parameter; interpolating at least two look-up tables for color conversion according to the transformation parameter, in order to calculate a look-up table for the input image; and applying the calculated look-up table to the input image to perform the color conversion. Accordingly, it is possible to provide good color reproduction and efficiently use a color gamut of an MPD having color coordinates that are different from those of primaries of an input image.

Abstract: A projection system comprising an information processing apparatus capable of processing image data and a projector capable of performing a display process on the image data processed by the information processing apparatus, when the bit number representing the number of gradations of pixel data transmitted from the information processing apparatus to the projector is n-bit and the bit number representing the number of gradations which can be expressed by the projector is m-bit (m>n). The image processing apparatus outputs image data where m-bit pixel data is divided into k-pieces of pixel data of at most n-bits, and the projector synthesizes the k-pieces of pixel data based on a set synthesis rule to generate the m-bit pixel data in the pixel.

Abstract: Restriction information on a total colorant amount for a medium is obtained. Patches at grid points in a color space corresponding to a plurality of colorants at which the total colorant amount falls within a restriction represented by the restriction information, and a patch at a point surrounded by the patches are generated. Color values are obtained by measuring the colors of the patches printed on the medium. It is determined based on a color prediction value between the grid points whether the measured color values are appropriate, and if so, a color value at a grid point at which the total colorant amount exceeds the restriction is estimated based on the measured color values. A color separation table is created based on the measured color values and the estimated value.

Abstract: A display device which includes a display panel having a plurality of pixels and displaying images. Each pixel includes a data line, first and second gate lines, a first sub-pixel connected to the first gate line and the data line, and a second sub-pixel connected to the same data line and the second gate line, and a display driving unit receives an image signal, converts the image signal into a first sub image signal and a second sub image signal, supplies the first sub data voltage to the first sub-pixel through the data line and then supplies the second sub data voltage to the second sub-pixel through the same data line. The first sub data voltage corresponding to the first sub image signal, and the second sub data voltage corresponding to the second sub image signal.

Abstract: A color processing apparatus includes an image signal acquisition section, a color conversion matrix storage section, a matrix regularization processing section and a normal color conversion section. The image signal acquisition section acquires an image signal containing a predetermined input color signal. The color conversion matrix storage section stores information of a color conversion matrix which associates the input color signal and an output color signal with each other. The matrix regularization processing section reads the information of the color conversion matrix from the color conversion matrix storage section and converts the color conversion matrix into a nonsingular matrix. The normal color conversion section converts the input color signal acquired by the image signal acquisition section into an output color signal using the nonsingular matrix.

Abstract: In order to improve the accuracy of a code amount estimated by using a predictive residual when coding at a low data rate, an encoder is utilized to perform picture coding processing on a picture to be coded which is an input signal, by using a technique such as H.264. Specifically, a code amount predictor predicts the code amount on the basis of an evaluation value obtained by predictive-residual code amount evaluation value generating unit, a coding-condition code amount evaluation value generating unit, and a motion-vector-information code amount evaluation value generating unit. The predicted code amount is used for controlling coding in the encoder.

Abstract: In accordance with one embodiment, a method for emulating the color performance of a display system includes determining an expected first color gamut of the display system. Display data is converted into a format that emulates the first color gamut. The converted display data is displayed by a different display system having an expected second color gamut different than the expected first color gamut.

Abstract: A novel and useful system and method for the serving and display of extended bit depth (EBD) high resolution images on a web browser using multimedia platform code or code for a graphics framework. To display an EBD image, such as an x-ray or MRI image set, on a web browser, the image data is mapped into a plurality of channels of pixels of a color image which a web browser is able to handle, where each channel holds a portion of the full dynamic range of the original EBD image. At the client, a color transform is applied to the color image data which takes into account the user's desired VOI settings. The resulting display image has the exact values as if the VOI was applied to the original EBD image and is dynamically mapped to the display capabilities of the client viewing framework thus enabling a reviewer to detect any available details of the image.

Abstract: Systems and methods for converting between a first color space format and a second color space format are described herein. The system receives a video cell in a first color space format comprising a plurality of pixels. Each pixel in the cell has a luminance value and a chrominance value. The luminance values of each pixel are compared to determine the brightest pixel in the received cell. The cell is downsampled to generate a second cell in a second color space format. The second cell in the second color space format comprises a downsampled chrominance value that is computed based at least in part on the chrominance value of the brightest pixel. The method advantageously reduces tinting of a high intensity pixel by the chrominance component of a neighboring low-intensity pixel.

Abstract: The invention provides a printing control apparatus having a function for performing preview displaying prior to printing document data outputted by an application program. The apparatus comprises: a generator for generating a preview image based on the document data in accordance with a print setting; and a preview display controller for displaying, together with the preview image, a user interface which displays an option in a predetermined item of a print setting within a scope corresponding to a current print setting, when the predetermined item of the print setting corresponding to the preview image is to be changed. The printing control apparatus enables printing of the document data in accordance with the print setting changed through the user interface.

Abstract: Machine-enabled methods of, and devices for, encoding color bitmap data as indexed red-green-blue (RGB) data for display.

Abstract: On the basis of image data representing the area of a face image contained in an image represented by applied image data, a color correction value calculating circuit calculates a color correction value and a color image probability calculating circuit calculates the probability that the area of the face image is a color image. A color correction value adjusting circuit then adjusts the color correction value based upon the probability that the area of the face image is a color image. The adjusted color correction value is used in correction processing in an image correcting circuit.

Abstract: Methods and systems for performing interleaved to planar transformation operations in a mobile terminal having a video display are disclosed. Aspects of one method may include extracting similar color space components from a received block of interleaved YUV color space format video data as data is received, where the block may comprise 128 bits. The similar color space components may be extracted and transferred to a memory, where each type of the similar color space components may be stored contiguously in separate portions of the memory in planar format. The transferring of data may be via direct memory access of 32-bit words. When the line buffer that is receiving the interleaved video data is full, a direct memory access operation may be initiated. Direct memory access operation may also be initiated when the data for a similar color space component for a complete horizontal line is extracted.

Abstract: A method and apparatus for processing image pixel signals having at least two color components in which at least some of the image pixel signals are classified into a plurality of classifications and transformed by a transform function associated with the classifications.

Abstract: A method of redistributing an N-primary color input signal (IS) having a particular number?4 (N) of input components (I1, . . . , IN) into N-primary color output signal (OS) having the particular number (N) of output components (P1, . . . , PN) under a constraint (CON2). The method comprises defining (MPRC) three functions (F1, F2, F3) representing three (P1, P2, P3) of the output components (P1, . . . , PN) as a function of the remaining N-3 output components (P4, . . . , PN). Substituting (MPRC) the values of the input components (I1, . . . , IN) into the three functions (F1, F2, F3) to determine unknown coefficients (P1?, P2?, P3?) of the three functions (F1, F2, F3). And, determining (MPRC) optimal values of the output components (P1, . . . , PN) by applying the constraint (CON2) to the three functions (F1, F2, F3).

Abstract: A system and method for driving an AMOLED display is provided. The AMOLED display includes a plurality of pixel circuits. A voltage-programming scheme, a current-programming scheme or a combination thereof is applied to drive the display. Threshold shift information, and/or voltage necessary to obtain hybrid driving circuit may be acquired. A data sampling may be implemented to acquire a current/voltage relationship. A feedback operation may be implemented to correct the brightness of the pixel.

Abstract: A method for selecting a pixel output format includes selecting a first pixel to be output, and determining whether the first pixel to be output overlaps with a second pixel. The second pixel is available in the first format from a first source, and in a second format from a second source. The method further includes converting the second pixel in the second format to the first format to produce a converted second pixel. The converted second pixel is compared to the second pixel having the first format, and the second pixel having the first format or the second pixel having the second format is selected for output based upon the comparison.

Abstract: A method for detecting and diagnosing disease states in a body part is described. The method starts with a preparatory step of modeling the body part as a grid of many finite elements, then calculating an electrical property between two finite elements at which current from two corresponding electrodes flows through the body part. This is termed the weight (influence) of the element. With this baseline information, electrical impedance measurements made at the plurality of electrodes on the periphery of the body part can be used in a diagnostic module to calculate a Weighted Element Value (WEVal) for each element. In a preferred embodiment of invention, the difference in WEVal magnitude between corresponding elements of homologous body parts serves as an indicator of the presence of disease.

Abstract: A nonlinearly processed (gamma-corrected) video signal is subjected to three-dimensional signal level correction using three-dimensional correction values and corresponding to a position in a horizontal direction and a vertical direction of a pixel on a display screen of an image display unit and the signal level of the pixel data. Thereby, accurate gamma correction is made possible, and horizontal and vertical area information (grid block) can be disposed in an optimum positional relation according to resolution of the screen.

Abstract: Mapping spectral colors in an Interim Connection Space (ICS) of a full spectral space based on an objective function is provided. A spectral color value in the ICS is accessed, and a spectral gamut boundary of the destination gamut is accessed. The spectral color value is mapped into mapped spectral color value based on minimization of an objective function of coordinates of a first subspace of the ICS, by fixing coordinates of a second subspace of the ICS, subject to a constraint that a result is within the spectral gamut boundary. The first subspace is a null space of a transformation from the ICS to a color space, while the second subspace is an orthogonal complement of the first subspace in the ICS. The constraint is determined by a gamut section that is an intersection of the spectral gamut in the ICS and an affine subspace characterized by the fixed coordinates of the second subspace.

Abstract: In a method of mapping data from a source space to a target space, a space transformation look-up table (LUT) that contains a plurality of locations storing information is maintained, wherein each of the plurality of locations includes information specifying a function to be evaluated. First data defined according to a multi-dimensional source space is input, and second data defined according to a multi-dimensional target space is generated, by applying information contained in the LUT to the first data.

Abstract: An apparatus includes an extractor, a first subtractor, a second subtractor, a third subtractor, an offset generator and an adder. The extractor receives the color pixel and to provides a first, a second, and a third image value, wherein the first, the second, and the third image values are associated with the brightness of the color pixel. The first subtractor calculates a first offset between the first image value and a first expected image value. The second subtractor calculates a first difference between the first and the second image values. The third subtractor calculates a second difference between the first and the third image values. The offset generator defines a linear relation based on the first offset and the first image value, and generates a second and a third offset. The adder receives the second offset, the third offset, the second image value and the third image value to generate a second and a third expected image value.

Abstract: An evaluation apparatus includes an image reproduction section, which obtains a reproduction image by reproducing an original image with a plurality of color elements visually mixed for defining colors, and which obtains a plurality of reproduction images respectively corresponding to twelve types of color element groups having different types of color elements and/or different numbers of color elements from one another. The apparatus also includes a calculation section which calculates a level of a difference between colors of each of the plurality of reproduction images and colors of the original image; and a display section which displays the level of the difference calculated by the difference calculation section.

Abstract: A method for correcting color characteristics of a flat panel display comprises the steps of using a signal generating device to generate an input signal to the display and a color measurement instrument to measure color displayed by the display to obtain an output value; obtaining corrected color characteristic values necessary for the display to display a target output value Txyz through the relation of an inverse function RGB=f?1(XYZ) between the input signal RGB and output value XYZ, and storing the corrected color characteristic values and an identification code of the display into a storage medium. The corrected color characteristic values are downloaded to a hard disk of a computer from the storage medium according to the identification code; and the computer uses a driver of the display to activate the flat panel display to display a corrected color according to the corrected color characteristic values.

Abstract: There is provided a method of changing a theme for a user interface of a computer system comprising receiving an identification of an image with which to define a color palette of a theme for rendering elements of a user interface on a color display of the computer system; analysing the image to determine at least one predominant color; and defining the color palette in response to the analysis. The image may comprise a background image selected by a user for display by the computer system. Dynamic generation of the color palette matches the user interface to colors to provide flexible and appealing themes. A computer readable memory having recorded thereon instructions to carry out this method is also provided, as well as a device comprising such memory.

Abstract: A method and a device for reducing the waste of the central process unit (CPU) resource during the filling process of a vector graphic, and the method includes: parsing the vector graphic to obtain a series of polygons; mapping the polygons into a new drawing coordinate whose unit is 1/2n pixel using a transform parameter and a transform matrix, while updating an original drawing window into the new drawing coordinate at the same time, wherein the transform parameter is A, A=2n/K, n is a shift parameter, the unit of the vertex coordinate of the polygon is 1/K pixel, and n, K are valued for natural numbers; obtaining the portions of the polygons located in the new drawing window in the new drawing coordinate; transforming the portions of the polygons located in the new drawing window in the new drawing coordinate into a group of scan segments; and shifting the original code of the coordinate of the scan segments to right by n bit, and rendering the pixels of the shifted scan segments.

Abstract: An image display system draws a first image on top of a second image. Pixels of the first image include one or more color channels which encode color information, but do not include an alpha channel which encodes transparency information. The system encodes transparency information for the pixels in the first image using at least one bit in at least one color channel of each pixel. The system draws the first image on top of the second image using the transparency information encoded in the color channels of the pixels to obtain a combined image.

Abstract: An image forming system includes: a resource information storage unit that previously stores resource information to be combined with input print information; a first setting unit that sets an image characteristic of the resource information stored in the resource information storage unit; a second setting unit that sets an image characteristic of the input print information; and a color conversion unit that, when the image characteristic set by the first setting unit and the image characteristic set by the second setting unit are different, performs color conversion on the resource information based on the image characteristic set by the first setting unit, and performs color conversion on the print information based on the image characteristic set by the second setting unit.

Abstract: The invention relates to a method for enhancing color resolution and particularly for obtaining bit resolution in a display using a bits per pixel system frame buffer. The invention uses logic to create intermediate pixel values between bpp color values. The invention proposes to store the image in the system frame buffer always with a fixed number of bits and using Error Diffusion Dither. Then a postprocessing filter is provided to provide the enhanced color resolution using a greater number of bits per pixel as accepted by the display means. The invention also relates to a device exploiting the method.

Abstract: Appearance parameters for each object are set by pressing an appearance parameter setting button (208) for each object ID selected by a body object selection button (207). Upon generation of a two-dimensional image for pseudo three-dimensional presentation, the color values of each object are determined based on the appearance parameters set for that object. A satisfactory three-dimensional presentation image can be generated according to the adaptation state of a human visual perception.

Abstract: Methods and systems for displaying assistance messages to aircraft operators are disclosed. A method in accordance with one embodiment includes receiving an input from an aircraft operator at an aircraft flight deck, comparing a characteristic of the input to at least one target value for the characteristic, and, if the characteristic of the input differs from the at least one target value for the characteristic by at least a threshold amount, displaying an assistance message to the aircraft operator. The assistance message can include a complying input and/or an instruction for creating a complying input. The input and the assistance message can be displayed simultaneously.

Abstract: When each value of luminance signals of three primary colors in the primary video signal is less than the output lower limit value, in short, when the gradation level is negative, the negative gradation level of the present primary color is, in accordance with its magnitude, in other words, in accordance with the absolute value of the negative gradation level, replaced with positive gradation levels of other two primary colors. Therefore, in accordance with A VIDEO SIGNAL CONVERTER of this invention, even when the primary video signal includes a signal value having a negative gradation level, in short, even when one or more of each signal value of RGB is below the output lower limit value, a color according to the combination of those gradation levels (a combination of each level of primary colors (RGB)) can be reproduced (displayed) by a display means.

Abstract: A user may access a website via a mobile channel using a mobile device. As the user is logged into the website, the user may call or otherwise contact a representative via another communications channel with the mobile device or another user device, such as a phone or a user computing device or another mobile device. An emulator engine may determine the type of mobile device that the user is using to access the website via the mobile channel. An emulator for the mobile device that has been determined may be retrieved from an emulator library and provided to the representative computing device. The representative may view the same user interface on the representative computing device that the user sees on the mobile device.

Abstract: Methods, apparatuses, systems, and machine readable media for pixel transformations. One exemplary method includes: determining a state of a pixel format transformation, wherein a pixel format includes a predetermined number of pixel data components and a predetermined number of bits for each of the pixel data components and wherein the state includes a source pixel format and a destination pixel format and at least one intermediate pixel format; converting pixel data in the source pixel format to pixel data in the intermediate pixel format; and converting the pixel data in the intermediate pixel format to pixel data in the destination pixel format. In certain embodiments, a method includes building and compiling a function, at run-time, for the pixel format transformation based upon the state.

Abstract: A color selection and coordination system including a database of predetermined color relationships implementing a data-driven color model. A starting color is associated with a first color in the color database. One or more predefined color palettes associated with the first color may be retrieved, each palette including one or more coordinating colors, the coordinating colors being predetermined based on the first color and a color coordination algorithm.

Abstract: The present invention relates to the compression of color image data. A combination of hard decision pixel mapping and soft decision pixel mapping is used to jointly address both quantization distortion and compression rate while maintaining low computational complexity and compatibility with standard decoders, such as, for example, the GIF/PNG decoder.

Abstract: An image displaying device and a method for controlling color thereof. The image displaying device includes a lattice selection unit which selects a lattice of a look-up table (LUT) for reference of each pixel of an input image, a lattice control unit which determines whether the selected lattice requires to be changed for color adjustment and calculates a change degree of the lattice, an LUT conversion unit which converts the LUT by changing the lattice based on the calculated change degree, and a lattice reference/interpolation unit which refers to or interpolates the lattice based on the converted LUT. Accordingly, the LUT can be updated real time, thereby realizing more accurate adjustment of color.

Abstract: Provided is a method and apparatus for modulating sub-channel pixels in a multi grayscale monochrome output apparatus, more particularly, a method and apparatus for modulating sub-channel pixels in a multi grayscale monochrome output apparatus that can represent a high grayscale input image on a low grayscale output apparatus through sub-channel pixel modulation.

Abstract: An image processing device that performs color conversion processing using a lookup table (LUT) includes an acquiring unit that acquires an emulation LUT for applying emulation of a gamut to a target device from a device in use, the emulation LUT being generated using a device-in-use LUT for performing correction corresponding to input and output characteristics of the device in use and a target device LUT for performing correction corresponding to input and output characteristics of the target device, and a converting unit that performs gamut conversion in performing the emulation using the emulation LUT acquired by the LUT acquiring unit.

Abstract: In order to calculate the calorimetric value of a color patch under a given viewing illuminant, a plurality of colorimetric value sets obtained by measuring the colors of color patches under a plurality of illuminants are stored in a memory, the type of spectral distribution and white point information of the viewing illuminant are obtained (S12), and a calorimetric value set corresponding to the type of spectral distribution of the viewing illuminant is selected (S13). A colorimetric value set under the viewing illuminant is calculated from the selected calorimetric value set, on the basis of the white point information of the viewing illuminant and the white point information of the illuminant of the selected colorimetric value set (S14).

Abstract: An intelligent light source converts color and luminous flux data to luminous flux levels of individual color sources and automatically compensates for variations in operating conditions.

Abstract: A method of converting a three-primary input color signal (IS) comprising three input components (R, G, B) per input sample into an N-primary color drive signal (DS) comprising N?4 drive components (D1, . . . , DN) per output sample for driving N sub-pixels (SP1, . . . , SPN) of a color additive display. The N sub-pixels (SP1, . . . , SPN) have N primary colors. The method comprises adding (10), to three equations defining a relation between the N drive components (D1, . . . , DN) and the three input components (R, G, B), at least one linear equation defining a value for a combination of a first subset of the N drive components (D1, . . . , DN) and a second subset of the N-drive components (D1, . . . , DN) to obtain an extended set of equations. The first subset comprises a first linear combination (LC1) of 1?M1<N of the N drive components (D1, . . . , DN), and the second subset comprises a second linear combination (LC2) of 1?M2<N of the N drive components (D1, . . . , DN).

Abstract: The present invention provides an image processing device, a color correction table generation device, a display device, an image processing method, a color correction table generation method, a color adjustment method of a display device, and an image processing program capable of color matching to preferred colors of which excessive emphasis in chroma is suppressed. There are provided a chroma limit setting section for setting a chroma limit based on a optimal color, and a color correction table generation section for generating a color correction table by making a correspondence between an input color and an output color having chroma no greater than a chroma limit. The color correction table is stored in a color correction table storage section. The color correction execution section executes color correction along the color correction table so that the projector outputs a color with chroma no greater than the chroma limit.

Abstract: In creating a color conversion table, search time for searching a point at which a color difference with a target color corresponding to a grid point is minimum can be reduced effectively. In a predetermined grid point constituting a second pre-color processing table, a post-RGB value of a target color of the grid point is determined by interpolation computation using a first pre-color processing table created beforehand. An interpolation operation using each grid point data of a plurality of grid points in the neighborhood in the table is executed, thus the post-RGB value of an object grid point is determined. Next, a neighboring region of the obtained post-RGB value is set, and a post-RGB value of most approximate to the target color in the neighboring region is determined as grid point data of the object grid point.

Abstract: Tuning sizes of cells of an interpolated lookup table may be performed based at least in part on an area specific behavior of a quality metric. A weighted input shaper curve may be determined to reduce interpolation errors in a multi-dimensional color lookup table. An initial input shaper curve may be applied to a color lookup table to create an interpolation result. The interpolation result may then be assessed for accuracy. The accuracy assessment may include comparing the interpolation result with a reference representation. An interpolation error may be calculated as the error between one or more intervals in a prospective color lookup table as compared to a reference representation. The weighted input shaper curve may be based at least in part on the calculated interpolation error.

Abstract: A system and method of converting a red-green-blue (RGB) pixel to a red-green-blue-white (RGBW) pixel by using a W value extraction, the RGB-to-RGBW converting system including: a lookup table generator to generate an RGBW lookup table using one or more RGB lattice points; and an RGBW value computation unit to compute an RGBW value of an input pixel with respect to an RGB value of the input pixel based on the generated RGBW lookup table.

Abstract: A display device carries out an overshoot process on gray scale data of a target frame, the gray scale data being to be converted into a data signal, the overshoot process converting the gray scale data so that the gray scale data includes an overshoot amount in accordance with at least the gray scale data of a predetermined frame preceding the target frame and the gray scale data of the target frame, and further carrying out gray scale correction on overshoot-processed gray scale data obtained by carrying out the overshoot process on the gray scale data of the target frame, the gray scale correction being carried out by use of a correction amount corresponding to each of positions of respective columns to each of which the data signal is to be supplied, the respective columns being on a display panel.

Abstract: Disclosed herein is a color adjustment apparatus, including: a color information storage section configured to store color information regarding an arbitrary region designated through a pointer in an editing image region; and a color coordinate explicitly displaying section configured to explicitly display a mark, which specifies color coordinates corresponding to the color information, at a pertaining position on a hue ring or a hue bar chart prepared for color adjustment.