Invention Grant
US08014028B2 Intent preservation when constructing measurement-based color transforms from transform-based profiles
有权
从基于变换的轮廓构建基于测量的颜色变换时的意图保存
- Patent Title: Intent preservation when constructing measurement-based color transforms from transform-based profiles
- Patent Title (中): 从基于变换的轮廓构建基于测量的颜色变换时的意图保存
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Application No.: US12123430Application Date: 2008-05-19
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Publication No.: US08014028B2Publication Date: 2011-09-06
- Inventor: John Haikin
- Applicant: John Haikin
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Main IPC: H04N1/60
- IPC: H04N1/60

Abstract:
Preservation of rendering intent when a rendering model encapsulated in a transform-based profile is used in a measurement-based CMS. Source device color values are converted to generate perceptually rendered values using a perceptual transform of the transform-based color profile. Perceptually rendered appearance values of a color appearance space are generated by converting the perceptually rendered values using predefined ICC viewing conditions. Using a gamut mapping model (GMM), the generated appearance values are converted to generate destination device color values within a color gamut of a destination device. The GMM uses a PRMG boundary description and a gamut boundary description of the destination device to perform the mapping. A transform is constructed from the source device color values and the corresponding destination device color values. Color values of an image generated by the source device are converted to color values of a destination device using the constructed transform.
Public/Granted literature
- US20090284763A1 INTENT PRESERVATION WHEN CONSTRUCTING MEASUREMENT-BASED COLOR TRANSFORMS FROM TRANSFORM-BASED PROFILES Public/Granted day:2009-11-19
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