Abstract: Innovations in rendering of high dynamic range (“HDR”) video on a display device having enhanced dynamic range (“EDR”). The peak brightness for an EDR display device is lower than the peak brightness for a typical HDR display device but higher than the peak brightness for a typical display device having standard dynamic range. The increased range of brightness values in an EDR display device can be utilized effectively to show bright highlights of the HDR video. For example, decision logic is configured to evaluate a peak brightness of a target display device and select an HDR-to-EDR tone mapping mode. A tone mapper is configured to apply tone mapping to input values for the sample values of HDR video, according to a tone mapping function, thereby producing output values for sample values of EDR video.

Abstract: Digital broadcast receiving method comprising receiving base and additional view video streams and stereoscopic characteristics information. The method comprising identifying a virtual channel carrying a 3D broadcast service delivering additional and base view video streams encoded using different codecs using a service type field, wherein the service type field is included in a TVCT of a PSIP in an ATSC-type digital broadcast and identifying a codec type of each of the base and the additional view video streams using a stream type field included in a PMT, wherein the stream type field is related to each of the base and the additional view video streams, and wherein a value of the stream type field indicates the codec type of each of the base and the additional view video streams. The method also comprising processing base and additional view video streams for supporting the 3D broadcast service using the TVCT.

Abstract: High definition media content processing techniques are described in which enhanced media content rendering techniques may be performed to output high definition media content. In an implementation, luma keying may be provided to define clear pixels in a composite output using an optimum set of graphics processing instructions. In another implementation, techniques are described which may provide clear rectangles in a composite output of one or more video streams. Clear rectangles to appear in the composite output are configured by a media playback application. A texture is arrived at to represent a union of each of the clear rectangles and is applied to form the clear rectangles in the composite output. In another implementation, capture techniques are described in which an image to capture is resolved as strips to an intermediate texture and then from the texture to a capture buffer in system memory.

Abstract: The device (1) comprises means (7) for assigning, for each pixel of a second image, a part of the three components (red, green, blue) defining the color constituting the pixel, to a component alpha containing an item of information relating to transparency and allowing management thereof, in such a way as to obtain a coded image, and means (2) comprising a digital electronic card (9) which is formed in such a way as to decode said coded image so as to extract the information relating to transparency, and to merge this image thus decoded with a first image, while taking account of said item of information relating to transparency, the image resulting from this merging being displayed by appropriate means (5).

Abstract: A detail improvement processing section (13) includes (i) a maximum value calculation processing section (17) configured to calculate a maximum value of pixel values of respective of a target pixel and peripheral pixels around the target pixel, (ii) a minimum value calculation processing section (18) configured to calculate a minimum value of the pixel values, (iii) a high-frequency component generation processing section (19) configured to calculate a high-frequency component on the basis of the pixel value of the target pixel, the maximum value, and the minimum value, and (iv) a mixing processing section (20) configured to correct the pixel value of the target pixel using the high-frequency component.

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 system includes: an image capture device configured to capture image data from a camera system, the image data being in a first mosaic layout; an image display device configured to display the image data in a second mosaic layout; and a processor configured to receive the image data in the first mosaic layout and to supply the image data in the second mosaic layout to the display without intermediate conversion to a fully collocated image layout.

Abstract: A method includes storing data related to a video frame or an image separately from data related to a subtitle of the video frame or the image in a memory of a data processing device, and comparing, through a processor communicatively coupled to the memory, a color parameter of the data related to the video frame or the image to a color parameter of the data related to the subtitle. The method also includes dynamically adjusting a color parameter of at least a portion of the data related to the subtitle and/or a color parameter of at least a portion of the data related to the video frame or the image based on the comparison. Further, the method includes overlaying the data related to the subtitle on the data related to the video frame or the image following the dynamic adjustment prior to rendering thereof on a display unit.

Abstract: A method for embedding an image in a video sequence for a mobile terminal. Preferably, the mobile terminal is a tablet or smartphone. The method comprises the steps of choosing an image to be embedded, reading the video sequence, displaying a frame, and determining the presence of an embedding zone in the frame. The embedding zone having been previously identified or deduced according to a predefined algorithm. The method further comprises the step of applying a deformation to the image to be embedded such that the image to be embedded coincides with the form of the embedding zone. The image combining the frame and the image to be embedded is displayed/disposed in place of the embedding zone.

Abstract: An exemplary method includes an adjunct content presentation system including adjunct content within a first image of a media content instance and a second image of the media content instance by setting a pixel value of a first group of pixels included in the first image and a pixel value of a second group of pixels included in the second image and corresponding to the first group of pixels to each be greater than a predetermined neutral pixel value, including the adjunct content within a compensating image by setting a pixel value of a third group of pixels included in the compensating image and corresponding to the first and second groups of pixels to be less than the predetermined neutral pixel value, and presenting the first image, the second image, and the compensating image. Corresponding methods and systems are also disclosed.

Abstract: The device (1) comprises means (7) for assigning, for each pixel of a second image, a part of the three components (red, green, blue) defining the colour constituting the pixel, to a component alpha containing an item of information relating to transparency and allowing management thereof, in such a way as to obtain a coded image, and means (2) comprising a digital electronic card (9) which is formed in such a way as to decode said coded image so as to extract the information relating to transparency, and to merge this image thus decoded with a first image, while taking account of said item of information relating to transparency, the image resulting from this merging being displayed by appropriate means (5).

Abstract: A wide gamut RGB digital display, such as an LCD display, digital television, printer, or any other suitable display, includes wide color gamut configuration message control logic that is operative to indicate, to an image source provider, wide gamut RGB indication information and wide color gamut format definition information that indicates that wide gamut RGB color data is to be received by the wide gamut RGB digital display. The wide gamut configuration message control logic is also operatively responsive to wide gamut confirmation information that is received from the image source provider. The wide gamut RGB digital display also includes logic that is operative to display received wide gamut RGB color data that was received in response to the wide gamut RGB indication information and the wide color gamut format definition information.

Abstract: A video composition model that provides a set of application programming interfaces (APIs) to set device contexts, and determine capabilities of graphics hardware from a device driver. After the model determines a configuration, the model determines input video stream states applicable to frame rates, color-spaces and alpha indexing of input video streams, interactive graphics, and background images. The model prepares the input video frames and reference frames, as well as a frame format and input/output frame index information. The input video streams, interactive graphics and background images are processed individually and mixed to generate an output video stream.

Abstract: There is provided an image processing apparatus capable of preventing colors from changing while being displayed when images are combined. The image processing apparatus according to an embodiment includes a video graphic processor that combines a plurality of image signals to generate a combined image signal and an HDMI Tx that transmits, when the combined image signal is transmitted, an identification flag of one of a first color space standard and a second color space standard having a color gamut wider than a color gamut of the first color space standard as the color space standard of the combined image signal and a host CPU decides the first or second color space standard so as to prevent change in color while being displayed.

Abstract: A display color-correcting system is provided. Color response values are measured that go into the vertices of polyhedra in a cubic color output space of the display. A set of corresponding values for the display is built from intermediate values determined between the measured color response values. The intermediate values are determined by decomposition and interpolation of interpolation volumes in the cubic color output space. Each of the interpolation volumes is the combined volume of a selected polyhedron within the cubic color output space and a predetermined volume of space between the selected polyhedron and the next polyhedron within the cubic color output space. The set of corresponding values is converted into decoupled RGB adjustment values that specify the RGB signals independently for the display to produce corrected colors. The RGB adjustment values are saved into one or more look-up tables.

Abstract: Embodiments of the invention are generally directed to conversion and processing of deep color video in a single clock domain. An embodiment of a method includes receiving one or more video data streams, the one or more video data streams including a first video data stream, the first video data stream being clocked at a frequency of a link clock signal. The method further includes converting the first video data stream into a converted video data stream having a modified data format, wherein the modified data format includes transfer of a single pixel of data in one cycle of the link clock signal and the insertion of null data to fill empty cycles of the converted video data stream, and generation of a valid data signal to distinguish between valid video data and the null data in the converted video data stream.

Abstract: A method of processing on screen display data with an image post processor includes receiving a data stream from a video processor at a post processing device having at least one port, the data stream including on screen display data overlaid on a white background and the on screen display data overlaid on a black background, finding a difference between the on screen display data overlaid on white and the on screen display data overlaid on black, using the difference to determine a complement of an alpha blend value, performing image processing on the image data with the post processor by applying the complement of an alpha blend value to the image data to produce processed image data, and transmitting the processed image data and the on screen display data through a display port.

Abstract: A method for scaling subpicture data comprises receiving a video data stream and a subpicture data stream; pre-parsing the subpicture data stream to obtain line information of subpicture data, the subpicture data containing both top field pixel data and bottom field pixel data; calculating the number of lines contained in the top field pixel data and the bottom field pixel data from the pre-parsed line information; interlacing the top field pixel data and the bottom field pixel data; and scaling the top and bottom field pixel data together in interlaced form for adjusting the number of lines contained in the top field pixel data and the bottom field pixel data.

Abstract: High definition media content processing techniques are described in which enhanced media content rendering techniques may be performed to output high definition media content. In an implementation, luma keying may be provided to define clear pixels in a composite output using an optimum set of graphics processing instructions. In another implementation, techniques are described which may provide clear rectangles in a composite output of one or more video streams. Clear rectangles to appear in the composite output are configured by a media playback application. A texture is arrived at to represent a union of each of the clear rectangles and is applied to form the clear rectangles in the composite output. In another implementation, capture techniques are described in which an image to capture is resolved as strips to an intermediate texture and then from the texture to a capture buffer in system memory.

Abstract: The color management module includes a first color converter color-converting color information contained in an image signal having been input according to a three-dimensional LUT; an interpolator generating a synthetic image signal by synthesizing an image signal converted by the first color converter and an image signal having been input in an arbitrary ratio; and a second color converter color-converting color information on the synthetic image signal in the HSV space and outputting the color information.

Abstract: A display color correcting method is provided. A first plurality of input color values are provided to a display, wherein the input color values correspond to a plurality of vertices of a plurality of cubes within a cubic color space of the display. Each cube has two vertices arranged along a gray diagonal of the cubic color space. A response value is measured for each of the color values and a first plurality of calibration values is determined, the calibration values corresponding to the first plurality of input color values. A second plurality of calibration values corresponding to a second plurality of input color values is determined by interpolating the first plurality of calibration values.

Abstract: The claimed subject matter relates to a computer-implemented architecture that can generate a map. The map can be a hybrid between an orthographic projection map and street-side images, thus including useful aspects from both types of representations. For example, an orthographic projection map is very effective at presenting global relationships among the features of the map but not effective at presenting local detail. In contrast, street -side images show excellent detail but do not convey the global information of an orthographic projection map. The hybrid map can thus provide a richer set of information than conventional maps and can also display objects/features of the hybrid map in multiple perspectives simultaneously on a single representation that is printable.

Abstract: Various imaging processing techniques for displaying a pre-subpixel rendered image. The pre-subpixel rendered image can be transmitted directly to a display capable of displaying a subpixel rendered image. The pre-subpixel rendered image can also be stored for later transmission for output to the display. Additionally, the pre-subpixel rendered image can be embedded in an image data stream and later extracted and displayed.

Abstract: A display color-correcting system is provided. Color response values are measured that go into the vertices of polyhedra in a cubic color output space of the display. A set of corresponding values for the display is built from intermediate values determined between the measured color response values. The intermediate values are determined by decomposition and interpolation of interpolation volumes in the cubic color output space. Each of the interpolation volumes is the combined volume of a selected polyhedron within the cubic color output space and a predetermined volume of space between the selected polyhedron and the next polyhedron within the cubic color output space. The set of corresponding values is converted into decoupled RGB adjustment values that specify the RGB signals independently for the display to produce corrected colors. The RGB adjustment values are saved into one or more look-up tables.

Abstract: The claimed subject matter relates to a computer-implemented architecture that can generate a map. The map can be a hybrid between an orthographic projection map and street-side images, thus including useful aspects from both types of representations. For example, an orthographic projection map is very effective at presenting global relationships among the features of the map, but not effective at presenting local detail. In contrast, street-side images show excellent detail, but do not convey the global information of an orthographic projection map. The hybrid map can thus provide a richer set of information than conventional maps, and can also display objects/features of the hybrid map in multiple perspectives simultaneously on a single representation that is printable.

Abstract: A display color-correcting system is provided. Color response values are measured that go into the vertices of polyhedra in a cubic color output space of the display. A set of corresponding values for the display is built from intermediate values determined between the measured color response values. The intermediate values are determined by decomposition and interpolation of interpolation volumes in the cubic color output space. Each of the interpolation volumes is the combined volume of a selected polyhedron within the cubic color output space and a predetermined volume of space between the selected polyhedron and the next polyhedron within the cubic color output space. The set of corresponding values is converted into decoupled RGB adjustment values that specify the RGB signals independently for the display to produce corrected colors. The RGB adjustment values are saved into one or more look-up tables.

Abstract: A display device having an on-screen display (OSD) function receives a YUV video signal such as the camera video signal or broadcast video signal of YUV format from a camera or recording medium, receives an RGB-OSD signal from a circuit device (serial interface) of another system different from this YUV video signal, causes a memory within an OSD processor to store the OSD signal, converts an RGB video signal resulting from conversion of the YUV video signal to a panel-matched RGB video signal synchronized with a display synchronization signal, reads a panel-matched RGB OSD signal from the memory of the OSD processor in synchronism with this display synchronization signal, composes those RGB video signal and OSD signal, using an OSD composer, and supplies the resulting RGB composite video signal and the display synchronization signal to a display panel.

Abstract: A method for scaling subpicture data comprises receiving a video data stream and a subpicture data stream; pre-parsing the subpicture data stream to obtain line information of subpicture data, the subpicture data containing both top field pixel data and bottom field pixel data; calculating the number of lines contained in the top field pixel data and the bottom field pixel data from the pre-parsed line information; interlacing the top field pixel data and the bottom field pixel data; scaling the top and bottom field pixel data together in interlaced form for adjusting the number of lines contained in the top field pixel data and the bottom field pixel data; separating the scaled pixel data into updated top field pixel data and updated bottom field pixel data; and separately storing the updated top field pixel data and the updated bottom field pixel data in a memory.

Abstract: The image synthesis apparatus 10 includes an anti-aliasing processing circuit 11 for generating a foreground image having a reduced aliasing by blending the color information and blending the alpha information for each dot of the input foreground image, and an image synthesizing circuit 15 for synthesizing the color information of the foreground image having the reduced aliasing and the color information of the background image, using the alpha information of the foreground image having the reduced aliasing.

Abstract: A method and apparatus for superimposing a character on video for display on a video screen comprising providing a system capable of displaying a plurality of RGB pixel values on a video screen, designating a portion of the plurality of RGB pixel values to have special values, receiving video data having a first plurality of RGB pixel values for display on a video screen, superimposing a character on the video data to create a composite video having a second plurality of RGB pixel values for display on a video screen, determining if a first RGB pixel value from the second plurality of RGB pixel values is in the designated portion of the plurality of RGB pixel values, displaying the first RGB pixel value if the first RGB pixel value is not in the designated portion of the plurality of RGB pixel values, determining the special value for the first RGB pixel value if first the RGB pixel value is in the designated portion of the plurality of RGB pixel values, and displaying the determined special value for the fir

Abstract: To allow a telop image to be displayed appropriately even when color information and transparency information for the telop image are transmitted over a network, the present invention provides a telop image sending/receiving system comprising a telop image sending apparatus and a telop image receiving apparatus in which the telop image sending apparatus has an OA fill signal input section for inputting color information for a telop image, an OA key signal input section for inputting transparency information for the telop image, an association storage section for storing color information and transparency information as a pair, a data compression section for compressing data, and a sending section for sending compressed color information and transparency information to a receiving apparatus, and the telop image receiving apparatus has a reception and storage section for receiving and storing the information, a data decompression section for performing data decompression, an OA fill signal output section for ou

Abstract: A connection device capable of mixing an RGB graphics signal and a YUV video signal. The connection device includes a graphics conversion module for transforming an RGB graphics signal into a YUV graphics signal, and a mixing module connected to the graphics conversion module for receiving a YUV video signal and the YUV graphics signal from the graphics conversion module. The mixing module outputs a YUV signal after mixing the YUV video signal and the YUV graphics signal.

Abstract: A video encoder capable of adjusting output levels and more effectively utilizing performances of later devices, provided with a level adjustment circuit for adjusting output levels of an input luminance signal, color signal, and composite video signal by adding DC offset in accordance with a value set in a register or the like in advance and outputting the same to a display device, and an image processing system using the same.

Abstract: A ticker tape PiP system that provides for viewing the ticker tape image portion from one image signal (e.g., a ticker tape image portion of a television image signal), while viewing at least a portion of an image from a different image signal (i.e., a standard television program image). The ticker tape PiP system includes an image display device, a first tuner and a second tuner. The first and second tuners are configured to receive first and second image signals and to output corresponding first and second video signals, respectively. The ticker tape PiP system also includes a video switching subsystem for receiving the first and second video signals and for selectively switching an output to the image display device between (i) an RGB formatted display signal derived from the first video signal and (ii) an RGB formatted display signal derived from the second video signal that corresponds only to a ticker tape image portion of the second video signal.

Abstract: According to the signal processing apparatus of the present invention, in a text signal processing circuit, predetermined signal processes are executed to a luminance signal Y and color difference signals U and V in which a ratio of sampling clocks is equal to (4:4:4) and resultant signals are supplied to a mixing circuit. In a video signal processing circuit, predetermined signal processes are executed to the signals Y, U, and V in which a ratio of sampling clocks is equal to (4:1:1) or (4:2:2). The signal Y is supplied to the mixing circuit through a delay adjusting circuit and the high frequency components are removed from the signals U and V by a band limiting filter and, after that, the resultant signals are supplied to the mixing circuit. The signal mixed by the mixing circuit is supplied to a LPF through a D/A converter. In the LPF, the signal is demodulated by the band limiting filter according to (4:4:4).

Abstract: Methods and systems for separating a picture part of interest from an arbitrary background in real time videos are presented. The background may be a moving or still frame. The picture part of interest and background frames may be in or out of focus. One separation approach employs the difference between luminance and chrominance values of the input and background frames where changes in luminance from frame to frame are compensated for. In another approach, picture part of interest separation is based solely on spatial resolution differences between the background and the picture part of interest frames. The present invention also teaches a method and system for parameter matching of the picture part of interest and the basic picture into which the picture part of interest is embedded. The invention further teaches a method and system for embedding a separated picture part of interest into a basic picture containing text.

Abstract: A method and apparatus for processing DVD video data and sub-picture data is accomplished by storing a line of DVD video data and at least a partially decoded portion of DVD sub-picture data. The partially decoded DVD sub-picture data is still in an encoded format, which may be two bits per pixel, but line information has been decoded from the DVD subpicture data stream. Once stored, the DVD video data is retrieved from the memory and scaled to produce scaled video data. Similarly, the partially decoded sub-picture data is retrieved from memory, further decoded, and scaled to produce scaled sub-picture data. The scaled video data is blended with the scaled sub-picture data to produce a video output.

Abstract: There is provided configuration for enabling extraction of the concerned area with simple operations. An arbitrary position within the desired concerned area is designated by the position designation means, and the pixel color of the designated position is stored in the memory. The tolerable color difference setting means sets the initial color difference from the pixel color of the designated position as 0. The pixel group (within tolerable color difference) extraction means extracts the pixels within the tolerable color difference from all the pixels. The adjacent pixel group (within tolerable color difference) selective display means selectively displays the pixel group including the pixel of the designated position, based on the result of extraction by the extraction means. At each execution by the selective display means, the tolerable color difference setting means increases the tolerable color difference. Thereafter the extraction means and the selective display means repeat the execution.

Abstract: A broadcasting receiver comprises a digital tuner and an analog tuner. An OSD circuit and an adder add video data such as characters produced in the receiver to received video data on a channel tuned in to by the digital tuner. A video analog-to-digital processor converts a received video signal on a channel tuned in to by the analog tuner into digital received video data, and the OSD circuit and the adder similarly add the video data such as characters produced in the receiver to the received video data.

Abstract: A method and apparatus for blending a plurality of image input layers include processing that begins by converting each of a plurality of image input layers that have a color base that differs from a color base of a display into a image layer having the color base of the display, thereby producing converting image layers. The color base of the image input layers and of the output include the colorimetries of various standardized video signals, color space, and/or any other defining display characteristics of video signals that is currently standardized or maybe standardized. Further note that an image input layer corresponds to a window, a background and/or a display area of a display, where the display is capable of presenting more than one image, where the images originate from different video and/or graphics data sources (e.g., a television signal, and a computer application display).

Abstract: A double/multi window processing apparatus for a TV system is disclosed. The apparatus has a first luminance/chrominance separation unit for separating a luminance signal Ym and chrominance signal Cm from the combined image signals of the main image outputted from the intermediate frequency processing unit. A second luminance/chrominance separation unit separates the luminance and chrominance components from the combined image signals CVBS1 and CVBS2 of the main image and a sub-image outputted from the intermediate frequency processing unit and coincides the same. The second luminance/chrominance separation unit combines the synchronous-coincided luminance and chrominance signals and generates double window luminance Yp and chrominance Cp signals. A luminance/chrominance switching unit switches the luminance Yp and chrominance Cp signals of the first and second luminance/chrominance separation units and outputs one luminance Y and chrominance signal.

Abstract: An improved technique for mixing picture signals directed at a monitor screen. Two analog video signals (such as an analog VGA input and an analog ROB signal produced in response to a stored digital still or moving image) may be multiplexed in analog form. An analog chromakey mixer detects a background color in the first video signal (such as the analog VGA input), and replaces the portion of that first video signal with the second video signal. The time delays of the first video signal and the second video signal may be adjusted so that they reach the monitor screen (by means of a multiplexer output) at the same time. An alignment detector may attempt to align two known signals (such as a VGA sync signal and a signal generated for this purpose), and may adjust a set of time delays in the analog chromakey mixer until the time difference between the first and second video signals falls below a threshold.

Abstract: An image processing apparatus includes a data dividing section for dividing digital data into a plurality of blocks of data. A first parallel shift control section controls, block by block, first parallel shift for shifting the blocks of digital data to positions coinciding with an angle of rotation of an image. A second parallel shift control section subdivides the digital data in each of the blocks into subblock data, and controls second shift for shifting the subblock data in each block to positions coinciding with the angle of rotation of the image such that a color image is correctly displayed. The apparatus is capable of rotating a color image correctly and rapidly with a simple circuit arrangement.

Abstract: Apparatus for producing a composite image from a foreground image (FG), showing an object or a scene with a substantially monochrome background, and background image (BG) comprising a first processing unit (R4) for producing a control signal (SEP) for each pixel of the foregoing image (FG), reflecting whether an individual pixel of the foreground image is part of the object or part of the monochrome background, based both on the chromatic values of the pixel and on predetermined chromatic values, describing the color composition of the monochrome background, a selection unit (R5) suffixed to the first processing unit (R4), for calculating the chromatic values of an individual pixel of the composite image from, depending on the control signal (SEP), either the chromatic values of the corresponding pixel of the foreground image (FG) or the chromatic values of the corresponding pixel of the background image (BG), a second processing unit for calculating correction values for the chromatic values of an individual

Abstract: A picture synthesizing system includes a main picture decoding section, sub-picture decoding section, color table conversion section, sub-picture data conversion section, and picture synthesizing section. The main picture decoding section decodes main picture data by a first picture compression scheme. The sub-picture decoding section outputs a color table and frame data by decoding sub-picture data by a second picture compression scheme. The color table conversion section converts the color table from the sub-picture decoding section on the basis of a display format in which a synthesized picture is displayed. The sub-picture data conversion section converts the frame data from the sub-picture decoding section.

Abstract: A method and apparatus for converting the color base of an image input layer include processing that begins by interpreting a conversion flag. The processing then continues by converting the color base of the image input layer from a first color base to a second color base when the conversion flag indicates a color base conversion. Note that a color base corresponds to standardized colorometries of video signals, color space of video signals, and/or any other displaying characteristics of video signals that are standardized or may be subsequently standardized. Further note that an image input layer corresponds to a display or portion thereof (e.g., a window or a picture in picture), wherein the display is capable of presenting images from multiple video and/or graphics data sources (e.g., a television signal and a computer application).

Abstract: A method and apparatus for improving the quality of video data when displayed on a display device that uses YUV output data to produce a display includes processing that begins by generating expanded RGB data from received RGB data. For example, the RGB data may be 8-bit data and the expanded data is generated by adding bits to it. The processing continues by generating RGB representative data from received YUV data. The RGB representative data is of the same format as the expanded RGB data and has a value range that includes and exceeds the normalized value range of the perceived RGB data. For example, the RGB representative data may have values less than zero and/or greater than 1, or normalized values outside of the zero to 1 range. The processing then continues by mixing the RGB representative data and the expanded RGB data to produce resulting RGB data, which has a similar format as both the expanded RGB data and the RGB representative data.

Abstract: RGB signals and sync signals H and V are inputted from a personal computer or the like. Additional information is superimposed to a vertical blanking period of the R signal. A timing generating unit generates a sampling pulse on the basis of the sync signals. A data extracting unit extracts the additional information by using the pulse. Processes such as discrimination of a category of the additional information and a parity check are executed by an information decoding unit. A converter converts the RGB signals into an NTSC signal. VBI data and a copy prevention signal are formed in response to a decoded result of the information decoding unit. The VBI data and copy prevention signal are superimposed to the NTSC signal in adders.

Abstract: A method and apparatus for dynamically blending a plurality of image input layers include processing that begins by determining color base (e.g., color space, colorimetries and/or any defining characteristics relating to the display of a video signal and/or graphics data) of each of a plurality of image input layers. An image input layer corresponds to a window, display area and/or background of a display capable of presenting separate images at one time, wherein the separate images originate from separate video and/or graphics sources. The processing continues by determining an output color base of an output, where the output color base corresponds to the color base capabilities of the video equipment (e.g., RGB output). The processing then continues by converting, for each of the plurality of image input layers that has a different color base than the output color base, the color base to match the output color base thereby producing converting image layers.

Abstract: A video overlay circuit (110) overlays a first video signal (COMPVID) with a second video signal (LUM2, CHROM2). The first video signal is partitioned by filtering out a first chrominance component (CHROM1) which is subtracted from the first video signal to produce a first luminance component (LUM1). A fast switch (5) switches between the first luminance component and a second luminance component (LUM2) of the second video signal over a transition period of clock cycles to produce an overlaid luminance signal. A slow switch (6) switches between the first chrominance component and a second chrominance component (CHROM2) of the second video signal over a transition period longer than the transition period of the fast switch to produce an overlaid chrominance signal. An adder (7) sums the overlaid luminance and chrominance signals to produce a composite output signal (VIDEO).