Exposure control method for photographic printing

Details Exposure control method for photographic printing Exposure control method for photographic printing

1992-07-27

1994-08-09

Rutledge, D.

Photocopying

Projection printing and copying cameras

Methods

355 38, G03B 2732, G03B 2780

Patent

active

053371305

ABSTRACT:
In an exposure control method for photographic printing, average transmitted light from an original on an photographic film is color-separated, and an average photometric value for each color is obtained by measuring each color-separated light. A tentative exposure amount is determined based on the average photometric value. A color dominancy in the original image is evaluated by an analysis of image information which is obtained through a color-separated scanning of the original image, and the tentative exposure amount is corrected based on an evaluation result.

REFERENCES:
patent: 3724947 (1973-04-01), Paulus
patent: 4099862 (1978-07-01), Bickl et al.
patent: 4416539 (1983-11-01), Terashita
patent: 4492458 (1985-01-01), Bickl et al.
patent: 4641959 (1987-02-01), Terashita
patent: 4707118 (1987-11-01), Terashita
patent: 4757351 (1988-07-01), Birgmeir
patent: 5016043 (1991-05-01), Kraft et al.
patent: 5029312 (1991-07-01), Goenner
patent: 5223892 (1993-06-01), Ikenoue et al.

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