Patent ID: 6108441
Filing Date: 2000-08-22
Classification: G06T,H04N

Abstract:
A color adjustment method of performing a color adjustment of a color image, said color image being represented on a first color space, comprising the steps of:inputting first designated colors of said color image, said first designated colors being represented on said first color space;inputting first designated-adjustment-colors for said first designated colors, said first designated-adjustment-colors being represented on said first color space;converting said first designated colors and said first designated-adjustment-colors to second designated colors and second designated-adjustment colors, respectively, said second designated colors and said second designated-adjustment-colors being represented on a second color space;determining first color adjustment parameters for said first designated colors based on said second designated colors and said second designated-adjustment-colors;inputting first pixel colors of said color image, said first pixel colors being represented on said first color space;converting said first designated colors and said first pixel colors to third designated colors and second pixel colors, respectively, said third designated colors and said second pixel colors being represented on a third color space;determining distances between said second pixel colors and said third designated colors;determining second color adjustment parameters for said first pixel colors based on said first color adjustment parameters and said distances;converting said second pixel colors to third pixel colors which are represented on said second color space;determining first color-adjusted pixel colors based on said second color adjustment parameters and said third pixel colors; andconverting said first color-adjusted pixel colors to second color-adjusted pixel colors which are represented on said first color space.