Color imager having varying filter aperture sizes to compensate

Details Color imager having varying filter aperture sizes to compensate Color imager having varying filter aperture sizes to compensate

1988-10-05

1991-01-15

Groody, James J.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 50, 358 75, H04N 146

Patent

active

049857606

ABSTRACT:
A color image reading apparatus includes a plurality of line sensors which have different color filters and each of which has a plurality of light receiving elements. One of the plurality of line sensors (for the color blue) has an opening width larger than those of the remaining line sensors. The apparatus also includes a correcting unit such as an edge emphasis circuit for correcting image signals output from the line sensors so as to obtain identical resolutions of the image signals, and a processing unit such as a masking circuit for performing color processing of the image signals corrected by the correcting unit.

REFERENCES:
patent: 4481530 (1984-11-01), Wagensonner et al.

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