Patent ID: 8054504
Filing Date: 2011-11-08
Classification: H04N

Abstract:
1. A method for rendering on an output device a color represented by a color vector by means of a set of colorants represented by a colorant vector wherein the colorant vector includes a first colorant component representing an amount of a first colorant and a second colorant component representing an amount of a second colorant that is an opponent to the first colorant, the method comprising the steps of: identifying a first partial print process having a first color gamut including the first colorant component but not the second colorant component; identifying a second partial print process having a second color gamut including the second colorant component but not the first colorant component; defining an arbitrary closed surface that is contained within the first color gamut and at least partially contained in an overlapping portion between the first color gamut and the second color gamut; separating a first color vector pointing to the closed surface into a first colorant vector using minimum magnitudes for both the first colorant component and the second colorant component; rendering on the output device a first color represented by the first color vector by means of a first set of colorants represented by the first colorant vector; separating a second color vector that belongs to a volume defined by the closed surface into a second colorant vector for the first partial print process; separating a third color vector that belongs to a cross-section of the first color gamut and the second color gamut but not to the volume defined by the closed surface into a third colorant vector for the second partial print process; rendering on the output device a second color represented by the second color vector by means of a second set of colorants represented by the second colorant vector; and rendering on the output device a third color represented by the third color vector by means of a third set of colorants represented by the third colorant vector.