Abstract: A bit-resolution-extension method is provided. The resolution extension method includes normalizing n-m upper bit values of adjacent pixels based on an upper n-m bit value of each pixel of a sample image, analyzing a statistical distribution of a lower m bit value of the reference pixel by patterns of a set consisting of the normalized adjacent pixels, generating a memory address from normalized adjacent pixel values of the sample image, saving a representative value of the lower m bits by patterns to the memory address as a result of the analysis, normalizing adjacent pixel values based on each pixel value of an input image, generating the memory address from the normalized adjacent pixel value of the input image, reading a representative value of the lower m bits saved in the memory address, and adding the read lower m bits to the input image pixel values as lower bits.

Abstract: An image processing apparatus includes an information converting unit and an output unit. The information converting unit converts information into an information expression image formed by a dot arrangement pattern in which information is expressed by arranging a given number or less of dots in a unit display area which is an information unit. The output unit arranges the converted information expression image. The output unit superimposes the converted information expression image on image information. The output unit outputs the superimposed information expression image. In the dot arrangement pattern, the arrangement of the dots is determined so that the number of the dots denoting 1 or 0 of a bit sequence of a given error correction code word is a subset equal to or smaller than the given number, and the dot arrangement pattern is readable by a machine.

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: Disclosed are various embodiments for facilitating the selection of colors. An initial set of colors from a color space is generated in one or more computing devices for rendering in a user interface. Each color from the color space is expressed as a respective tuple of color component values. A selection of one of the initial set of colors is obtained. A subsequent set of colors from the color space is generated for rendering in the user interface. The subsequent set of colors is determined according to values of the N most significant bits of each of the corresponding color component values of the one of the initial set of colors, where N is a predetermined positive integer that is less than a bit length of each color component value.

Abstract: A system and method for displaying an image are provided. In one embodiment, the method includes receiving a data stream representing a frame of an image. The data stream may indicate a first color pixel cluster corresponding to a first color and a second color pixel cluster corresponding to a second color. The first color pixel cluster and the second color pixel cluster may be displayed. The first color pixel cluster may be different from the second color pixel cluster.

Abstract: An image-processor includes an acquiring unit and a correcting unit. The acquiring unit acquires image data and ambient light data indicating a degree of a first color temperature with respect to a second color temperature. The first color temperature represents a color temperature for a first ambient light. The second color temperature represents a color temperature for a second ambient light. A first image, which corresponds to the image data, is perceived in the first ambient light as an image having one color appearance. The first image is perceived in the second ambient light as an image having another color appearance. The correcting unit corrects the image data such that a color appearance of the first image under the first ambient light are reproduced under the second ambient light.

Abstract: A method and system for computing pixel parameters is disclosed. In one embodiment, the rasterizing of a geometric primitive comprising a plurality of vertices wherein each vertex comprises a respective color value, is performed by a rasterization module of a graphics pipeline. The rasterizing includes interpolating a respective color value for each pixel of the geometric primitive, wherein the respective color value is of a first bit width. The rasterizing also includes transforming the respective color value to a second bit width to produce a respective transformed color value for each pixel. Additionally, the rasterizing includes altering the respective transformed color value using a screen-location based dither table to produce a dithered transformed color value for each pixel. After the rasterizing, propagating the respective dithered transformed color value of each pixel to downstream modules of the graphics pipeline is performed.

Abstract: A playback apparatus includes an output unit configured to output main video data used as a main image, sub-video data used as a subsidiary image, cursor data to display a cursor, graphics data to display operation guidance, and sub-picture data to display subtitles, a first blend processing unit configured to superimpose the sub-video data, the sub-picture data, the cursor data and the graphics data, and a second blend processing unit configured to superimpose the superimposed data obtained by the first blend processing unit and the main video data.

Abstract: A coordinating apparatus for coordinating data transmission between a data providing device and a display device is provided. The display device conforms to a transmission standard. The coordinating apparatus includes a programmable coordinating module and an outputting module. The programmable coordinating module is programmed according to the transmission standard. The programmable coordinating module is used for receiving M bits of image data from the data providing device, extracting N bits of image data among the M bits of image data, and arranging the N bits of image data into N bits of arranged data. The outputting module is used for outputting the N bits of arranged data to the display device.

Abstract: There is provided a method for performing digital processing on an image signal output from CCD image sensors with a CMYG color filter array, the method including converting a digital CMYG signal of 10 bits each into a first YCbCr signal of 10 bits each, by using color interpolation, converting the first YCbCr signal of 10 bits each into an RGB signal of 8 bits each by using interpolation, performing color correction on the RGB signal of 8 bits each and converting a color-corrected RGB signal of 8 bits each into a second YCbCr signal of 8 bits each in a format which complies with the ITU-601 format, encoding the second YCbCr signal of 8 bits each and converting an encoded second YCbr signal of 8 bits each into an analog video signal, and adjusting automatic exposure and automatic white balance, using the RGB signal of 8 bits each and the second YCbCr signal of 8 bits each.

Abstract: A display device includes a color converter, a timing controller, and a display panel. The color converter converts R, G, and B data into R?, G?, B?, and W? data. The R?, G?, B?, and W? data includes first component data and second component data. The timing controller provides the first component data to a data driver during a first driving time and provides the second component data to the data driver during a second driving time. The data driver provides gray level display voltages corresponding to the first component data and the second component data to a data line, and the display panel displays the R?, G?, B?, and W? data in response to the gray level display voltage.

Abstract: A cubic, or other polynomial, approximation to a panel's gamma function. Embodiments contemplate a display system configured to apply a panel gamma function that is a third-order polynomial function, as well as its substantial inverse. This third order function is often easier to implement, and yields lower gate count than current power law gamma functions.

Abstract: An error reduction apparatus includes a combing absence detector to detect absence of combing from a luminance signal, a combing presence detector to detect presence of combing from a color-difference signal, a vertical low-pass filter to receive the color-difference signal, and a selector to select one of the color-difference signal and a color-difference signal to which the vertical low-pass filter is applied based on detection results of the combing absence detector and the combing presence detector, and if combing is absent in the luminance signal and combing is present in the color-difference signal, the error reduction apparatus applies the vertical low-pass filter to the color-difference signal and outputs the signal.

Abstract: The present invention is related to a gray-scale data bit processing method applied in a driving integrated circuit device of light-emitting diode (LED), and more particularly to a separating and recombining method applied to reduce the bit numbers of data to be processed to indicate the brightness of light-emitting diode, and thus a set of weight values and more updating rates are generated to obtain an identical sum of gray-scale weight values compared to the original one processed at a higher bit numbers of data operation.

Abstract: An image display device and a method for correcting a display characteristic thereof are provided. The image display device includes a composite color luminance determination unit which determines luminance of a composite color using luminance of a neutral color and luminance of a pure chromatic color, a display unit which displays an image signal using the luminance of the neutral color and the luminance of the pure chromatic color and the determined luminance of the composite color, a display characteristic measurement unit which measures a display characteristic parameter from the displayed image signal, and a display characteristic correction unit which corrects a display characteristic according to a result of comparing the measured display characteristic parameter and a preset target value. Accordingly, an accurate gamma correction can be performed.

Abstract: A device and a method for adjusting video luminance of at least a color in a display wherein the color is appointed by the user. The device comprises: a color flag generating module for transforming a plurality of color signals into a plurality of color flags; a luminance adjustment value calculating module for calculating a luminance adjustment output value according to a plurality of luminance adjustment input values of different colors and the plurality of color flags; and a luminance output module for applying the luminance adjustment output value to a luminance input signal so as to generate a luminance output signal. Using the device and the method according to the present invention, the user can respectively adjust the luminance of different colors.

Abstract: An image processing method is a method for correcting both an image quality of an overall image and an image quality of a partial image with excellent balance.

Abstract: A wide-angle video camera which captures high-resolution images using a Bayer filter to colorize the pixels. The image is processed to generate multiple views. The camera applies color processing pipelines independently and simultaneously to each of multiple regions of the full image captured by the sensor to generate a color image of acceptable quality for human viewing. An initial color image possesses greater color bit-depth compared to the output color image.

Abstract: A method of increasing the dynamic range of an image comprising a plurality of pixels each having a luminance value within a first luminance dynamic range. The method includes determining a background luminance value for each pixel of the image and determining a minimum and a maximum of the background luminance values. A conversion factor is then determined for each pixel of the image based on the minimum and maximum of the background luminance values. The image id converted from the first luminance dynamic range to a second luminance dynamic range by multiplying the luminance value of each pixel of the image by its conversion factor.

Abstract: A method for assembling image data for transport across a digital video interface includes receiving and converting first-formatted pixel data to a second-formatted pixel data. The second-formatted pixel data is readable by a rendering device, the second-formatted pixel data having a bit width that differs from an input bit width standard of the digital video interface. The second-formatted pixel data is assembled into a transport packet having a bit width which is equal to the input bit width standard of the digital video interface. The digital video interface is operable to receive the transport packet comprising the second-formatted pixel data, and thereby communicate the second-formatted pixel data to the rendering device.

Abstract: A method for grayscale display of a desired output shade comprises transmitting an enhanced grayscale input signal for the desired output shade to an enhanced grayscale engine. The input signal including a plurality of shade bits and a plurality of select bits. The method further comprises decoding the plurality of shade bits and the plurality of select bits to select an intermediate shade from a plurality of intermediate shades. The method further comprises forming an enhanced grayscale display. The method further comprises receiving the enhanced grayscale display signal from the enhanced grayscale engine and displaying an enhanced grayscale image on an output display. Responsive to a first user input, a standard grayscale display signal is selected. The standard grayscale display signal is received and a standard grayscale image is displayed on the output display.

Abstract: A color computer output is dynamically converted into a monochrome computer output based on a stored profile. The stored profile may be for a piece of hardware (e.g., a monochrome printer), or a user (e.g., a color-blind user).

Abstract: To eliminate a signal deviation that occurs when scaling processing is performed on image data including multiple signals having different data rates, there is provided an image processing apparatus which performs scaling processing on image data including multiple signals having different data rates and includes a first scaling processing unit that performs a first scaling processing according to a first scale factor in a first area; and a second scaling processing unit that performs a second scaling processing subsequent to the first scaling processing, according to a second scale factor in a second area adjacent to the first area, on a signal having a high data rate using the first scale factor, and performs the second scaling processing on a signal having a low data rate using the second scale factor obtained by correcting the first scale factor, after the first scaling processing.

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: 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: 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 and apparatus for dithering for multi-toning are provided. The apparatus includes a mask-pattern-generating unit that generates a mask pattern on R channel, G channel and B channel by selecting pattern values constituting the mask pattern on the channels based on randomly-determined seed values; a spatial-weight-determining unit that determines the weight for spatial dithering by using the pattern values and K-bit LSB data of the high-tone input image; and an output unit that outputs an M-bit image by applying the weight to M-bit input image data, exempting the K-bit LSB data, in a dithering apparatus for expressing an M+K bit high-tone input image in an M-bit low-tone output device.

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: 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: 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: 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 method for transmitting a coded information to a user via a graphical display. The method comprises the step of obtaining coded information by a scanner, which has to be positioned near the graphical display. The coded information is transmitted to a number of code points that are arranged in the direction of the fast refresh rate of the display.

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 color processing apparatus converts a target M-dimensional color signal in an input color space into an N-dimensional output color signal in an output color space. M and N are natural numbers and N>M. The apparatus includes a first calculation unit and a second calculation unit. The first calculation unit uniquely calculates (N?M) colorants of the converted output color signal from the target color signal with using plural color-signal pairs. In each pair, corresponding one of the (N?M) colorants of an output color signal in the output color space are associated with an input color signal in the input color space. The second calculation unit calculates the M colorants of the converted output color signal from the target color signal and the (N?M) colorants of the converted output color signal.

Abstract: A high dynamic range image editing system for editing an image file having pixels spanning a first range of light intensity levels in an image editing system that only displays differences in the light intensity levels of pixels within a second range of light intensity levels that is less than the first range of light intensity levels, without reducing the range of light intensity levels in the image file.

Abstract: Sub-pixel rendering with gamma adjustment allows the luminance for the sub-pixel arrangement to match the non-linear gamma response of the human eye's luminance channel, while the chrominance can match the linear response of the human eye's chrominance channels. The gamma correction allows the sub-pixel rendering to operate independently of the actual gamma of a display device. The sub-pixel rendering techniques with gamma adjustment may be optimized for the gamma transfer curve of a display device in order to improve response time, dot inversion balance, and contrast.

Abstract: The invention provides a Gamma conversion system applied on a source of image pixel data. Each image pixel data in the source of image pixel data has an M-bit pixel value with a first Gamma exponent. The Gamma conversion system comprises a storage module, a processing module, and a selecting module. The storage module therein stores I look-up tables. The processing module is respectively coupled to the source of image pixel data and the storage module, and the processing module comprises I converting modules, each of the converting modules corresponds to one look-up table. The selecting module is coupled to the source of image pixel data and the processing module respectively, and generates a selection signal according to the M-bit pixel value. In response to the selection signal, the processing module assigns one of the converting modules to convert the M-bit pixel value into an N-bit pixel value with a second Gamma exponent according to the look-up table corresponding to the assigned converting module.

Abstract: An image processing method for power saving is provided and includes the following steps. An original image is converted to a specific color space, so as to obtain a target image. A color converting table is created according to a color difference offset range, in which the color converting table records a plurality of power-saving pixel values. The color converting table is looked up, so as to convert original pixel values of a plurality of pixels of the target image into a part of power-saving pixel values. Furthermore, an output image is generated by using pixels with the part of the power-saving pixel values.

Abstract: A graphics processing unit is programmed to carry out cryptographic processing so that fast, effective cryptographic processing solutions can be provided without incurring additional hardware costs. The graphics processing unit can efficiently carry out cryptographic processing because it has an architecture that is configured to handle a large number of parallel processes. The cryptographic processing carried out on the graphics processing unit can be further improved by configuring the graphics processing unit to be capable of both floating point and integer operations.

Abstract: Embodiments of the present invention sets forth a method and system for reducing memory bandwidth requirements for an anti-aliasing operation. The first virtual coverage information for a pixel involved in an anti-aliasing operation is maintained in memory. If a certain operating condition of the anti-aliasing operation deterministically implies the second virtual coverage information for this pixel, the second virtual coverage information, as opposed to the first virtual coverage information, is used in the anti-aliasing operation. In such situations, since the virtual coverage information is implied, it does not have to be accessed from memory, thereby improving overall system performance.

Abstract: Image data systems and methods combine a plurality of images into a single multiple-palette image data file, or generate a selected image from the multiple-palette image data file. An exemplary embodiment receives first pixel information for a first pixel of a first image, the first pixel having a first color; receives second pixel information for a like-located second pixel of a second image, the second pixel having a second color; and specifies a color palette location value that identifies a first color palette array element in a first color palette of the first image and identifies a second like-located color palette array element in a second color palette of the second image. First color information stored in the first color palette array element defines the first pixel color. Second color information stored in the second image data color palette array element defines the second pixel color.

Abstract: An image special effect device includes: a graphic processor and a video processing block; the graphic processor converting coordinates in virtual three-dimensional space into two-dimensional coordinates on a display screen in accordance with a supply of information on the shape of a model in the virtual three-dimensional space, computing texture coordinates of an image that is pasted on the display screen and a reduction rate of the model on the display screen, and outputting information on the texture coordinates and reduction rate from an image data output unit; the video processing block writing input video data YUV into a memory after filtered by using a pre-filter coefficient corresponding to information on the reduction rate supplied from the graphic processor, and reading out the video data from the memory by using the supplied texture coordinates as information of read-address.

Abstract: The invention is characterized by the fact that an area sensor for outputting an analog signal responsive to the light reception amount of light of CMYG is used and when CMYG image data is converted into RGB image data, RGB image data having a domain also in negative values is generated without performing processing of putting the RGB image data into values of 0 or more, without decreasing the information amount of the CMYG image data. Further, the invention is characterized by the fact that when the image data is recorded in a file section 16 finally as a JPEG file, the pixel data of each color of YCbCr is represented as data type of eight bits and the information amount per pixel is 24 bits for recording more color information without increasing the memory capacity.

Abstract: Disclosed is color conversion method using a color look-up table. The method includes the steps of: generating a color look-up table using information on the difference of each channel before and after a conversion of each color; and converting the colors using the generated color look-up table. The step of generating the color look-up table includes identifying the maximum difference value among several difference values and generating a first compressed table to initially compress the difference values using the maximum difference value.

Abstract: An image processing apparatus, an image transmission apparatus, a display, an image processing method and an image transmission method, capable of suppressing tone or gray-level distortion before and after dithering as well as reducing and then increasing the number of bit-planes of an image. An image processing apparatus comprises a first image processor for performing multi-level dithering based on a two-dimensional dither matrix to reduce the bit-plane number of a raster image as an original image, a memory for storing image data of the raster image whose bit-plane number has been reduced by the first image processor, and a second image processor for performing bit addition for the image data read out from the memory to increase the bit-plane number thereof.

Abstract: Video conversion using a 3D graphics pipeline of a graphical processing unit (GPU) is disclosed. A plurality of video data formatted in a first video format is accessed from a memory unit. Moreover, the plurality of video data is converted from the first video format to a second video format using a 3D graphics pipeline of the GPU. The plurality of video data formatted in the second video format is sent to the memory unit. The 3D graphics pipeline applies a filtering technique. In an embodiment, the filtering technique is an interpolation technique.

Abstract: Disclosed is a video signal converting apparatus and a display device having the same which may convert a low-resolution video signal from a host into a different-resolution video signal capable of being displayed on the entire screen of a high-resolution supporting display device. The apparatus has a detector for detecting a first resolution signal indicative of a resolution of the first display signal using horizontal and vertical synchronization signals related to the first display, a comparator for comparing the first resolution signal with a second resolution signal indicative of a reference resolution; and a converter for converting the first display signal into the second resolution signal, if there is a difference between the first and the second resolution signals.

Abstract: Disclosed is a video signal converting apparatus and a display device having the same which may convert a low-resolution video signal from a host into a different-resolution video signal capable of being displayed on the entire screen of a high-resolution supporting display device. The apparatus has a detector for detecting a first resolution signal indicative of a resolution of the first display signal using horizontal and vertical synchronization signals related to the first display, a comparator for comparing the first resolution signal with a second resolution signal indicative of a reference resolution; and a converter for converting the first display signal into the second resolution signal, if there is a difference between the first and the second resolution signals.

Abstract: Gamma correction or other power Power functions and other self-similar functions are generated for correcting the light intensity for digital pixels implemented in hardware. Two levels of mapping of segments are preformed to reduce the total number of segments for a given precision. The A range of inputs is divided into successively smaller segments. Two levels of mapping of segments are performed. Each segment is smaller than the next by a factor of 1/a for a first or primary level, or 1/b for a second level of segments. All inputs are mapped of scaled up to the input range of the largest segment in the primary level. Then the largest primary segment is further divided into several second-level segments, and the input is again mapped or scaled into the largest of the second-level segments. Gamma correction The function is performed on the input scaled into the largest second-level segment. A linear approximation within the largest second-level segment is used.