H - Electricity – 04 – N
Patent
H - Electricity
04
N
178/3.2
H04N 1/46 (2006.01) G03G 15/01 (2006.01) H04N 1/62 (2006.01)
Patent
CA 1335080
There is provided a color image processing apparatus in which, by making use of an image reading apparatus of a digital full-color copying apparatus, the designated color to be obtained after conversion is input and stored as component ratio of color-separated image data, and monochromatic image data proportional to the gradation levels, e.g., density, lightness, luminance and so forth are obtained from the color separated image data produced from the original image, the monochromatic image data thus obtained being converted into the color separation data corresponding to the component ratio of the designated color to be obtained after conversion, thereby making it possible to preserve the hue of the designated color and to effect color conversion to the designated color having gradation proportional to the gradation of the original image.
566780
Honma Toshio
Kadowaki Toshihiro
Katoh Koichi
Ohnishi Tetsuya
Suzuki Yasumichi
Canon Kabushiki Kaisha
Ridout & Maybee Llp
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