发明名称 Digital color image processing method
摘要 A method for adjusting the color reproduction of a color image composed of pixels provided in a plurality of color channels is based on generating a reference image from a combination of the color channels, whereby each spatial coordinate of the reference image is characterized by a reference image level. Channel averages of the color channel values of the pixels that correspond to each of at least two different valued reference image levels are generated. Specific channel averages are obtained corresponding to a near white point and a near black point from the channel averages. The specific channel averages are utilized on a pixel by pixel basis for the respective channels of the digital color image to produce a processed digital color image having improved color reproduction.
申请公布号 US7085007(B2) 申请公布日期 2006.08.01
申请号 US20020101657 申请日期 2002.03.20
申请人 EASTMAN KODAK COMPANY 发明人 WELDY JOHN A.
分类号 G06K15/00;G06T1/00;G03F3/08;G06T5/00;H04N1/46;H04N1/60;H04N9/64 主分类号 G06K15/00
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