Patent ID: 7136190
Filing Date: 2006-11-14
Classification: H04N

Abstract:
1. A color conversion apparatus comprising: means for generating a first calculation term which is effective for at least one of the hues of red, blue, green, cyan, magenta and yellow, based on color data representing colors of red, blue, and green; means for generating a second calculation term which is effective for a predetermined inter-hue region included in at least one of inter-hue zones of red-yellow, yellow-green, green-cyan, cyan-blue, blue-magenta and magenta-red, based on the first calculation term; means for generating matrix coefficients for said first calculation term, and said second calculation term; means for generating new color data corresponding to said color data, by means of matrix calculation using said matrix coefficients, said first calculation term, and said second calculation term; and means for designating the inter-hue zone and the inter-hue region for which said second calculation term is effective.