Color image reading apparatus

Details Color image reading apparatus Color image reading apparatus

1993-01-05

1996-11-26

O'Shea, Sandra L.

Facsimile and static presentation processing

Natural color facsimile

Color correction

358524, 358523, 358527, G03F 308, G03F 310

Patent

active

055791310

ABSTRACT:
CPU performs correcting process for the difference in sensitivity caused by the difference in the kind of film and exposure condition by setting an amplification value of each video amplifier to which an image data on each color of G, R, and B is inputted wherein the amplification value is set so as to make a maximum value in the maximum and minimum values relative to an output of an image data on a predetermined number of picture elements as a predetermined value, and corrects the contents of each lookup table which is provided for maintaining an amplitude of image reading data on each color of R, G, and B constant so as to obtain predetermined output amplitude by the minimum value.

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