Patent ID: 6891649
Filing Date: 2005-05-10
Classification: H04N

Abstract:
1. A method of generating a color conversion table for converting first color data D to be processed by a first device into second color data D′ to be processed by a second device, comprising the steps of: determining a first calorimetric value of a first color obtained by processing the first color data D with the first device; determining a second colorimetric value of a second color obtained by processing the second color data D′ with the second device: establishing a color conversion table such that said first colorimetric value is equalized to said second colorimetric value; establishing a constraint condition to constrain color conversion relationships of said color conversion table between portions of said first and second color data D and D′ after establishing the color conversion table; and modifying the color conversion table between portions of said first and second color data D and D′ according to said constraint condition for generating a new color conversion table.