Color area compression method and apparatus
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United States of America Patent
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Aug 3, 1999
Grant Date -
N/A
app pub date -
Sep 25, 1996
filing date -
Sep 29, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A gamut compression method and apparatus for a color DTP system in which more natural-looking color regeneration is achieved in consideration of the difference in gamut from one device to another. If the gamut of the output system GMout is smaller than that of the input system GMin, the gamut of the input system is divided into four portions in a two-dimensional plane of lightness and chroma, under a constant color hue, using two straight line segments, and gamut compression is done by varying the compressing direction for each area, so that the color in the gamut of the input system will be converted into the color in the gamut of the output system.
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