Patent ID: 7009732
Filing Date: 2006-03-07
Classification: H04N

Abstract:
1. A method of producing, from a first device-dependent image data set in a first device-dependent color space, a second device-dependent image data set in a second device-dependent color space of an output device matched to a real process, which comprises: transforming color values from the first image data set into color values of a device-independent color space by using inverse gamut mapping giving a faithful color reproduction in a central area of the first device-dependent color space of the first data set and giving a deviating color representation in marginal areas, each color tone in the device-independent space being uniquely assigned to a color tone in the first device-dependent color space; and transforming the device-independent color values into the second image data set by using gamut mapping giving a faithful color reproduction in a central area of the second device-dependent color space of the second data set and giving a deviating color reproduction in marginal areas, each color tone in the device-independent space being uniquely assigned to a color tone in the second device-dependent color space.