Patent ID: 8422101
Filing Date: 2013-04-16
Classification: H04N

Abstract:
1. A color conversion device comprising: a profile storage unit that stores a plurality of profiles, each profile indicating correspondence relationships between input color signals representing values in an input color space defined in an input-side device and output color signals representing values in an output color space defined in an output-side device; a saturation determining unit that is configured to determine a saturation of pixel data in input image data, the input image data being represented by input color signals and including a plurality of regions, each region containing at least one set of pixel data; a first selecting unit that is configured to select, for each region, one profile among the plurality of profiles as an active profile based on the saturation of the at least one set of pixel data that is contained in the each region; and a conversion unit that converts the input image data into print data represented by output color signals, by converting each set of pixel data based on the active profile that is selected for a region that contains the each set of pixel data, wherein each output color signal has at least one among a black value corresponding to black color material and a plurality of chromatic color values corresponding to chromatic color materials, achromatic color being represented by using the black color material; the plurality of chromatic color materials; or the black color material and the plurality of chromatic color materials, the profile storage unit stores a first profile and a second profile, an output color signal contained in the second profile corresponding to each input color signal having a black value higher than a black value of an output color signal contained in the first profile for the same input color signal, the color conversion device further comprises a first determining unit that determines whether a saturation level of each region is a first level or a second level lower than the first level based on the saturation of the at least one set of pixel data that is contained in the each region, and the first selecting unit selects, for each region, the first profile as the active profile when the first determining unit determines that the saturation level of the each region is the first level, and the second profile as the active profile when the first determining unit determines that the saturation level of the each region is the second level.