Color printing control device, color printing control method, and computer readable recording medium stored with color printing control program
AssigneeKonica Minolta Business Technologies, Inc.
InventorMasaru Iida
Life of this patent
Estimating the term…
Abstract
The color printing control device outputs color material reduction processed data generated by applying a color material reduction process to each pixel of bitmaps converted to color material colors to be used in printing, when it is judged that the color material reduction printing mode is specified. The color material reduction process includes chroma conversion that reduces chroma and under-color removal/black generation that replaces at least a portion of achromatic components generated by overlaying of a plurality of color materials.
Claims29
A color printing control device that controls printing of a color image by overlaying achromatic color material including at least black with a plurality of chromatic color materials on a printing medium, comprising:
- a judgment part that judges whether or not a color material reduction printing mode is specified for printing with reduced consumption of color materials;
- and
- an output part that outputs color material reduction processed data generated by applying a color material reduction process to each pixel of bitmaps converted to color material colors to be used in printing, when it is judged by said judgment part that the color material reduction printing mode is specified, wherein
- said color material reduction process includes chroma conversion that reduces chroma and under-color removal/black generation that replaces at least a portion of achromatic components generated by overlaying of a plurality of color materials, and
- the color material reduction process includes determining a reference value based on densities of chromatic color material components of each pixel, and the chroma conversion reduces the chroma by decreasing densities of chromatic color material components larger than the reference value, and by increasing densities of chromatic color material components smaller than the reference value.
A color printing control device that controls printing of a color image by overlaying achromatic color material including at least black with a plurality of chromatic color materials on a printing medium, comprising:
- a judgment part that judges whether or not a color material reduction printing mode is specified for printing with reduced consumption of color materials;
- and
- a color conversion part that executes color conversion for converting color data inputted into the color printing control device into colors of color materials to be used in printing using color conversion profile for color material reduction acquired by simultaneously executing a color material reduction process, when it is judged by said judgment part that the color material reduction printing mode is specified;
- wherein
- said color material reduction process includes chroma conversion that reduces chroma and under-color removal/black generation that replaces at least a portion of achromatic components generated by overlaying of a plurality of color materials, and
- the color material reduction process includes determining a reference value based on densities of chromatic color material components of each pixel, and the chroma conversion reduces the chroma by decreasing densities of chromatic color material components larger than the reference value, and by increasing densities of chromatic color material components smaller than the reference value.
A color printing control method performed by a color printing apparatus that controls printing of a color image by overlaying achromatic color material including at least black with a plurality of chromatic color materials on a printing medium, the method comprising:
- (a) judging whether or not a color material reduction printing mode is specified for printing with reduced consumption of color materials;
- and
- (b) outputting color material reduction processed data generated by applying a color material reduction process to each pixel of bitmaps converted to color material colors to be used in printing, when it is judged in the step (a) that the color material reduction printing mode is specified, wherein
- said color material reduction process includes chroma conversion that reduces chroma and under-color removal/black generation that replaces at least a portion of achromatic components generated by overlaying of a plurality of color materials, and
- wherein the color material reduction process includes determining a reference value based on densities of chromatic color material components of each pixel, and the chroma conversion reduces the chroma by decreasing densities of chromatic color material components larger than the reference value, and by increasing densities of chromatic color material components smaller than the reference value.
A color printing control method performed by a color printing apparatus that controls printing of a color image by overlaying achromatic color material including at least black with a plurality of chromatic color materials on a printing medium, the method comprising:
- (a) judging whether or not a color material reduction printing mode is specified for printing with reduced consumption of color materials;
- and
- (b) executing color conversion for converting the inputted color data into colors of color materials to be used in printing using color conversion profile for color material reduction acquired by simultaneously executing a color material reduction process, when it is judged in the step (a) that the color material reduction printing mode is specified;
- wherein
- said color material reduction process includes chroma conversion that reduces chroma and under-color removal/black generation that replaces at least a portion of achromatic components generated by overlaying of a plurality of color materials, and
- the color material reduction process includes determining a reference value based on densities of chromatic color material components of each pixel, and the chroma conversion reduces the chroma by decreasing densities of chromatic color material components larger than the reference value, and by increasing densities of chromatic color material components smaller than the reference value.
A non-transitory computer readable recording medium stored with a color printing control program that controls printing of a color image by overlaying achromatic color material including at least black with a plurality of chromatic color materials on a printing medium, said program causing a computer to execute a process comprising:
- (a) judging whether or not a color material reduction printing mode is specified for printing with reduced consumption of color materials;
- and
- (b) outputting color material reduction processed data generated by applying a color material reduction process to each pixel of bitmaps converted to color material colors to be used in printing, when it is judged in the step (a) that the color material reduction printing mode is specified, wherein
- said color material reduction process includes chroma conversion that reduces chroma and under-color removal/black generation that replaces at least a portion of achromatic components generated by overlaying of a plurality of color materials, and
- the color material reduction process includes determining a reference value based on densities of chromatic color material components of each pixel, and the chroma conversion reduces the chroma by decreasing densities of chromatic color material components larger than the reference value, and by increasing densities of chromatic color material components smaller than the reference value.
A non-transitory computer readable recording medium stored with a color printing control program that controls printing of a color image by overlaying achromatic color material including at least black with a plurality of chromatic color materials on a printing medium, said program causing a computer to execute a process comprising:
- (a) judging whether or not a color material reduction printing mode is specified for printing with reduced consumption of color materials;
- and
- (b) executing a color conversion for converting the inputted color data into colors of color materials to be used in printing using a color conversion profile for color material reduction acquired by simultaneously executing a color material reduction process, when it is judged in the step (a) that the color material reduction printing mode is specified;
- wherein
- said color material reduction process includes chroma conversion that reduces chroma and under-color removal/black generation that replaces at least a portion of achromatic components generated by overlaying of a plurality of color materials, and
- the color material reduction process includes determining a reference value based on densities of chromatic color material components of each pixel, and the chroma conversion reduces the chroma by decreasing densities of chromatic color material components larger than the reference value, and by increasing densities of chromatic color material components smaller than the reference value.
Dependencies are inferred from the claim text.