Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Takahiro Suzuki0
Osamu Yamada0
Date of Patent
April 20, 2010
0Patent Application Number
110864610
Date Filed
March 23, 2005
0Patent Primary Examiner
Patent abstract
It is desired to adopt gamut mapping using a color appearance space in the processing system of an ICC profile. Upon generating an LUT complying with the ICC profile format, when CIEL*a*b* values are converted into CIEXYZ values, and the XYZ values are converted into color appearance space values using color appearance conversion formulas, a point which can be converted and becomes a nearest neighboring point for a point that satisfies a predetermined condition is retrieved, and corresponding color appearance space values are calculated. The obtained color appearance space values are mapped on a predetermined device gamut.
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