Patent ID: 7411701
Filing Date: 2008-08-12
Classification: H04N

Abstract:
1. A method for constructing a color gamut for a plurality of colorants used in a color image reproduction system, comprising the steps of: establishing a forward model for the color image reproduction system, the forward model characterizing the correspondence between combinations of the plurality of colorants and resulting colors in a color space; generating a set of inkvectors defining combinations of colorants in colorant space wherein each inkvector comprises two colorants that are allowed to vary freely between their respective minimum and maximum values, the remaining colorants being fixed at one of a maximum or a minimum value; using the forward model for mapping an inkvector coordinate into a color space coordinate; generating a plurality of gamut contours for a plurality of lightness levels in the color space wherein generating a gamut contour for a lightness level comprises: forming the gamut contour for the lightness level by connecting the boundary coordinates.