Method for determining an exposure for printing

Details Method for determining an exposure for printing Method for determining an exposure for printing

1992-05-11

1993-05-11

Gellner, Michael L.

Photocopying

Projection printing and copying cameras

Multicolor picture

355 77, G03B 2780

Patent

active

052105709

ABSTRACT:
A method for determining an exposure for printing an original image of a photographic film onto a photographic paper. The method includes the steps of; scanning an image on a photographic film to obtain an image data; obtaining plural region characteristic values which includes a maximum density value, a minimum density value, and an average density value in each of plural areas of an image for example; obtaining plural image characteristic values from the region characteristic values; calculating a linear first order sum of the image characteristic values; and selecting one of plural predetermined sets according to the result of the calculating step. The exposure is determined with the regression equation predetermined for one of the predetermined sets.

REFERENCES:
patent: 3888580 (1975-06-01), Amano et al.
patent: 4092067 (1978-05-01), Grossmann
patent: 4168120 (1979-09-01), Freier et al.
patent: 4339517 (1982-07-01), Akimoto
patent: 4641959 (1987-02-01), Terashita
patent: 4668082 (1987-05-01), Terashita et al.
patent: 5019858 (1991-04-01), Suzuki

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