Color image processing with smoothing of differential components

Details Color image processing with smoothing of differential components Color image processing with smoothing of differential components

1991-05-15

1994-06-14

Coles, Sr., Edward L.

Facsimile and static presentation processing

Natural color facsimile

358518, 358451, H04N 146

Patent

active

053215290

ABSTRACT:
A color image processing apparatus includes an input unit for inputting a plurality of color component signals representing a color image, a first operation unit for obtaining differences between a specified color component signal among the plurality of color component signals and other color component signals and outputting the differential signals, a second operation unit for smoothing-processing the differential signals obtained by the first operation unit, and a third operation unit for adding the differential signals smoothing processed by the second operation unit and the specified color component signal and outputting the result as the other-color component signals.

REFERENCES:
patent: 4677465 (1987-06-01), Alkofer
patent: 4953014 (1990-08-01), Takaragi
patent: 4963978 (1990-10-01), Ueda et al.
patent: 4974072 (1990-11-01), Hasegawa
patent: 4985760 (1991-01-01), Maeshima et al.
patent: 4999717 (1991-03-01), Nagashima

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