Patent ID: 9007657
Filing Date: 2015-04-14
Classification: G06K,H04N

Abstract:
1. A method for making a color transform, that represents a correspondence relation between a first and a second color space, each color space comprising color points for defining a color, each color point comprising a number of color channel values, the method comprising the steps of: obtaining a set of first color points in the first color space and a set of corresponding second color points in the second color space, wherein a first and a second corresponding color point define a corresponding color; establishing an excess relation for relating a color channel value of color points in the second color space to an excess value; and making the color transform for a gamut of color points in the second color space by relating color points in the first color space to color points in the second color space, wherein a color point is only included in the gamut if a sum of the excess values related to the color channel values of said color point is lower than a predetermined limit.