Color conversion apparatus and method

专利名称：Color conversion apparatus and method发明人：Shuichi Kagawa,Jun Someya,Hiroaki Sugiura申请号：US12222731申请日：20080814

公开号：US20090046332A1公开日：20090219

专利附图：

摘要：A color conversion apparatus receives first image data including first red-green-blue color data in which the possible values of the red, green, and blue componentsextend beyond the range from 0% to 100%. The first color data are analyzed into firsthue region data, the magnitudes of which are adjusted according to the brightness

and/or saturation of the first color data to obtain second and third hue region data. Thegamut of colors of the first image data is detected, and matrix coefficients are generatedaccording to the detected gamut. The matrix coefficients are used to perform a matrixoperation on the second and third hue region data to obtain second color data, therebyconverting the first image data to second image data with conversion characteristicsappropriate for the gamut of colors of the first image data.

申请人：Shuichi Kagawa,Jun Someya,Hiroaki Sugiura

地址：Tokyo JP,Tokyo JP,Tokyo JP

国籍：JP,JP,JP

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