发明名称 |
IMAGE PROCESSING APPARATUS, METHOD, AND PROGRAM-RECORDED STORAGE MEDIUM |
摘要 |
<p>A gradation-correcting curve to correct a gradation of an input image is generated. Gradation correction based on the gradation-correcting curve is made to a boundary pixel of a color-reproduction space at the same saturation as that of a target lattice point and at a hue of the target lattice point. An equal-saturation line is set by using the boundary pixel of the color-reproduction space after the gradation correction. A saturation-correction amount of the target lattice point is decided based on the gradation-correcting curve and the equal-saturation line.</p> |
申请公布号 |
EP2433418(A4) |
申请公布日期 |
2013.01.23 |
申请号 |
EP20100777796 |
申请日期 |
2010.05.13 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
UMEDA, KIYOSHI;IGUCHI, RYOSUKE |
分类号 |
H04N1/46;G06T1/00;H04N1/60 |
主分类号 |
H04N1/46 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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