Method of producing from a first image data set, a second image data set matched to a real process, and a color management method
AssigneeHeidelberger Druckmaschinen AG
InventorsMartin Mayer, Nikolaus Pfeiffer
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Abstract
A method of producing from a first device-dependent image data set, a second image data set matched to a real process, includes, by using inverse gamut mapping, transforming color values from the first image data set into color values of a device-independent color space and, by using gamut mapping, transforming these device-independent color values into the second image data set of an output device; and a color management method including the producing method.
Claims7
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.
Dependencies are inferred from the claim text.