×

Composite color transformation using customized gamut mappings

  • US 6,704,442 B2
  • Filed: 11/15/1999
  • Issued: 03/09/2004
  • Est. Priority Date: 11/15/1999
  • Status: Expired due to Term
First Claim
Patent Images

1. A color management method using an input device appearance transform and an output device appearance transform together with a customizable gamut mapping algorithm, said method comprising the steps of:

  • obtaining the input device appearance transform and the output device appearance transform based on each of input device color profile and an output device color profile;

    customizing the gamut mapping algorithm based on information in regard to the gamut mapping;

    compositing the customized gamut mapping algorithm with either the input device appearance transform and a color appearance model transform or the output device appearance transform and an inverse color appearance model transform, or both;

    generating an appearance look-up table; and

    transforming image data from an input colorant space to an output colorant space using the composited transform, wherein said gamut mapping algorithm operates in a perceptual color space, said perceptual color space is obtained by using the color appearance model transform.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×