Color picture image reading device with color correction functio

Details Color picture image reading device with color correction functio Color picture image reading device with color correction functio

1992-10-08

1993-06-29

Couso, Jose L.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 80, H04N 146

Patent

active

052239225

ABSTRACT:
A color picture reading device has a color image sensor composed of a plural number of sensor chips arranged in series. The color image sensor is connectable to one of a plurality of different output devices to reproduce a color picture image. The color picture reading device has a first memory for storing compensation coefficients corresponding to the respective sensor chips, a second member for storing other correction coefficients corresponding to the respective output device, an arithmetic circuit for calculating totalized color correction coefficients from the contents of the first and second memories, and a correction circuit for compensating both the discrepancy in color characteristics between the individual sensor chips and the different color characteristics between respective output devices by using the calculated totalized color correction coefficients.

REFERENCES:
patent: 4481532 (1984-11-01), Clark et al.
patent: 4740833 (1988-04-01), Shiota et al.
patent: 4870483 (1989-09-01), Nishigaki et al.
patent: 4891692 (1990-01-01), Outa
patent: 4926251 (1990-05-01), Sekizawa et al.
patent: 4954888 (1990-09-01), Fogaroli et al.
patent: 4992863 (1991-02-01), Moriya

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