Cached color conversion method and apparatus
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United States of America Patent
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Jun 12, 2001
Grant Date -
N/A
app pub date -
Feb 18, 1998
filing date -
Apr 30, 1997
priority date (Note) -
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status (Latency Note)
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Abstract
An apparatus for converting an input image in an input color space to an output image in an output color space. The apparatus has a cache memory for storing from external memory, sparsely located output color values corresponding to input pixels closest to the current input pixel of an image stream, if not already present in the cache memory. The apparatus also has retrieval means for retrieving, from said cache memory, the sparsely located output color values corresponding to the current input pixel of the stream. The retrieved output color values are interpolated by interpolation means to derive an output color value in said output color space.
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