Patent ID: 6850342
Filing Date: 2005-02-01
Classification: H04N

Abstract:
1. A method for generating a transform for converting a digital color image signal expressed as color values in a first color space having a first color gamut to code values for driving an output device having a second color gamut different from the first color gamut, comprising the steps of: a) transforming the color values of the first color space to color values in an intermediate color space; b) specifying one or more predefined color regions in an intermediate color space; c) preferentially mapping the color values in the intermediate color space into the second color gamut by smoothly translating the color value to fit the second color gamut using one or more color magnets while shielding the predefined color regions using shielding color magnets to produce enhanced modified color values in the intermediate color space; and d) transforming the modified color values to code values for driving the output device.