发明授权
- 专利标题: Gamut mapping using hue-preserving color space
- 专利标题(中): 使用色相保留颜色空间的色域映射
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申请号: US12760600申请日: 2010-04-15
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公开(公告)号: US08437053B2公开(公告)日: 2013-05-07
- 发明人: Christopher J. Edge
- 申请人: Christopher J. Edge
- 申请人地址: US NY Rochester
- 专利权人: Eastman Kodak Company
- 当前专利权人: Eastman Kodak Company
- 当前专利权人地址: US NY Rochester
- 代理商 Kevin E. Spaulding
- 主分类号: G03F3/08
- IPC分类号: G03F3/08 ; G06K9/00
摘要:
A method for applying gamut mapping to an input digital image having an associated input color gamut, to produce an output digital image having an associated output color gamut, which includes: defining a gamut mapping color transform which embodies the operations of transforming input color values from the input color space to linear RGB color values for a linear RGB color space, wherein the linear RGB color space has desirable hue preserving characteristics; transforming the linear RGB color values to determine nonlinear RGB color values; applying a 3×3 matrix transformation to the nonlinear RGB values to an opponent color space; applying a gamut mapping function to map opponent color values within the input color gamut to produce modified opponent color values within the output color gamut; and transforming the modified opponent color values to produce the output color values in the output color space.
公开/授权文献
- US20110255101A1 GAMUT MAPPING USING HUE-PRESERVING COLOR SPACE 公开/授权日:2011-10-20
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