Invention Grant
- Patent Title: Gamut mapping using hue-preserving color space
- Patent Title (中): 使用色相保留颜色空间的色域映射
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Application No.: US12760600Application Date: 2010-04-15
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Publication No.: US08437053B2Publication Date: 2013-05-07
- Inventor: Christopher J. Edge
- Applicant: Christopher J. Edge
- Applicant Address: US NY Rochester
- Assignee: Eastman Kodak Company
- Current Assignee: Eastman Kodak Company
- Current Assignee Address: US NY Rochester
- Agent Kevin E. Spaulding
- Main IPC: G03F3/08
- IPC: G03F3/08 ; G06K9/00

Abstract:
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.
Public/Granted literature
- US20110255101A1 GAMUT MAPPING USING HUE-PRESERVING COLOR SPACE Public/Granted day:2011-10-20
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