Color image forming apparatus having color-correcting unit opera

Details Color image forming apparatus having color-correcting unit opera Color image forming apparatus having color-correcting unit opera

1991-04-24

1993-08-24

Brinich, Stephen

Facsimile and static presentation processing

Natural color facsimile

Color correction

358500, H04N 146

Patent

active

052393704

ABSTRACT:
An image forming apparatus comprising an image inputting unit for reading the original color image on the image input medium to input an color image data of the original image therethrough, an image recording unit for recording the color image on the image output medium on the basis of the color image data, an image medium indicating unit for indicating a kind of the image input medium to output a compression-indicating signal representing a compression degree in an achromatic color direction for the input color image data, and a color-correcting unit having a color-compression unit for color-compressing the color image data of the original color image in the achromatic color direction on the basis of the compression degree indicated by the compression indicating signal every picture element to convert the color image data of the original color image to a color image data representing a recording color, the recording color being within the color-reproducible range (gamut) of the image output medium and having the same hue as the original color, and for outputting the converted color image data to said image recording means as the color image data, whereby a color-compression processing is performed.

REFERENCES:
patent: 3825673 (1974-07-01), Schreiner et al.
patent: 4060829 (1977-11-01), Sakamoto
patent: 4458265 (1984-07-01), Yoshida et al.
patent: 4758885 (1988-07-01), Sasaki et al.
patent: 4941038 (1990-07-01), Walowit
patent: 4959711 (1990-09-01), Hung et al.
patent: 4970585 (1990-11-01), Kurata
patent: 5053866 (1991-10-01), Johnson

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