Color images reading apparatus having transformation table forme

Details Color images reading apparatus having transformation table forme Color images reading apparatus having transformation table forme

1989-10-11

1991-09-17

Groody, James J.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 80, G03F 310

Patent

active

050499858

ABSTRACT:
A color image reading apparatus has a reading unit for color-separating and reading a color image, an operating unit for obtaining an average value of each of a plurality of color-component signals output from the reading unit, and a transforming unit for transforming the plurality of color-component signals from the reading unit into a plurality of color-density signals on the basis of the average values of the plurality of color-component signals obtained by the operating unit.

REFERENCES:
patent: 4206998 (1980-06-01), Tokuda
patent: 4222661 (1980-09-01), Wahli et al.
patent: 4397545 (1983-08-01), Terashita
patent: 4468692 (1984-08-01), Yamada et al.
patent: 4797712 (1989-01-01), Hayashi et al.
patent: 4922335 (1990-05-01), Outa et al.
patent: 4975737 (1990-12-01), Murooka et al.

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