发明名称 Tone evaluation apparatus and tone evaluation method
摘要 A tone evaluation method acquires color information on the second color space of a patch image corresponding to a grid point in the first color space, and calculates as the feature amount of a color conversion table the variation of the color information between two grid points in the first color space. Then, on the basis of the feature amount, a tone evaluation value for the color conversion table is calculated. In addition, on the basis of the variation of the feature amount, a tone jump position in the color conversion table is extracted and displayed.
申请公布号 US8027060(B2) 申请公布日期 2011.09.27
申请号 US20080055786 申请日期 2008.03.26
申请人 CANON KABUSHIKI KAISHA 发明人 KANEKO CHIAKI
分类号 G06F15/00;G06K9/00;H04N1/46 主分类号 G06F15/00
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