Accelerating color conversion using a temporary palette cache
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United States of America Patent
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Oct 28, 2008
Grant Date -
Sep 12, 2002
app pub date -
Nov 30, 2001
filing date -
Dec 1, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
A method and device for accelerating a color conversion process that converts input image data corresponding to a first color space to output image data corresponding to an output color space. A temporary cache stores color information in an array, and performs a conversion calculation for each individual color combination. If a pixel corresponds to a new color combination, the pixel information is stored in a new index of the array. If the pixel repeats a previously processed color, the pixel information is stored in the same index of the array as the previously processed pixel. A color conversion calculation is performed after all pixels within a block of pixels are mapped to the temporary array.
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