Image processing apparatus and method

Details Image processing apparatus and method Image processing apparatus and method

1994-09-30

1996-12-03

Wong, Peter S.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358515, 355326R, G03G 1520, H04N 146, H04N 121

Patent

active

055813593

ABSTRACT:
A two-color separating circuit separates an input image signal into two color signals R and K. In conformity with a color signal indicating the maximum value of the separated color signals, a color-mixture correcting circuit corrects the other color signal. The density of the color pixel formed by the corrected color signal is predicted, and the difference between the result of prediction and the color signal before correction is distributed among pixels of the same color surrounding this pixel. Accordingly, it is possible to provide an image processing apparatus for supplying an image forming apparatus, which collectively forms images of two colors, with an image signal subjected to processing capable of performing excellent color mixing without lowering the density of whichever of the two color-component images is formed last.

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patent: 5305069 (1994-04-01), Nakano
patent: 5386223 (1995-01-01), Saitoh et al.

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