Color conversion adjustment method
AssigneeFuji Photo Film Co., Ltd.
InventorOsamu Shimazaki
Life of this patent
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Abstract
A color conversion adjustment method is provided which enables correct judgment on a fine gray balance. In a process of adjusting or confirming gray correction conversion for correcting a gray balance, a plurality of color patches, whose gray balances are varied discretely, are lined up, and a gray correction chart, whose background portion other than the color patches is outputted at a black color of a predetermined density, is outputted. The black color of the background portion is a standard for judging the color balance. Because the color patches and the black color are printed on the same paper, there is no deterioration in the gray balance due to differences in papers, and accordingly, fine gray balance can be judged more accurately.
Claims20
A gray correction chart which is used for adjusting gray output balance of a color printer, comprising:
- a plurality of color patches which are outputted in a gray color in which at least two original colors, each of whose density is altered into a plurality of steps, are combined;
- and
- a background portion, which is a portion of said gray correction chart other than said plurality of color patches, said background portion being outputted as a black color.
A color conversion adjusting method for a color printer, using:
- a gray correction chart which is used for adjusting gray output balance of the color printer, comprising:
- a plurality of color patches which are outputted in a gray color in which at least two original colors, each of whose density is altered into a plurality of steps, are combined;
- and
- a background portion, which is a portion of said gray correction chart other than said plurality of color patches, said background portion being outputted as a black color.
A color conversion adjusting method for a color printer, comprising:
- a first step which outputs a first chart for adjusting gray output balance, and which adjusts gray output balance on the basis of said first chart;
- and
- a second step which outputs a second chart for confirming the results of the adjustment in said first step, and which confirms said results of the adjustment in said first step on the basis of said second chart,
- wherein each of said first chart and said second chart comprises a plurality of color patches which are outputted in a gray color in which at least two original colors, each of whose density is altered into a plurality of steps, are combined, and a background portion, which is a portion of said first chart or said second chart other than said plurality of color patches, said background portion being outputted as a black color.
Dependencies are inferred from the claim text.