Method for calibrating photographic image information

Details Method for calibrating photographic image information Method for calibrating photographic image information

1985-01-14

1987-05-19

Evans, F. L.

Optics: measuring and testing

By shade or color

Photography

355 38, 356443, 364525, G01J 340

Patent

active

046663070

ABSTRACT:
In a photographic image information detecting method of the type in which light transmitted from an original film is received by a two-dimensional image sensor and image information is detected with respect to the divided a plurality of picture elements of the original film, a photographic image information is calibrated by the steps of detecting information of the photographic image of a reference film with respect to the original film in use of the two-dimensional image sensor, storing the thus detected information as data for calibration, and subtracting the data for calibration from the detected data regarding the image information of the original film so as to thereby obtain accurately calibrated information regarding the photographic image of the original film.

REFERENCES:
patent: 3709613 (1973-01-01), Zahn et al.
patent: 3734621 (1973-05-01), Woody et al.
patent: 3874799 (1975-04-01), Isaacs et al.
patent: 4176964 (1979-12-01), Knor et al.
patent: 4187435 (1980-02-01), Palmatier et al.
patent: 4222661 (1980-09-01), Wahli et al.
patent: 4229108 (1980-10-01), Childers
patent: 4263512 (1981-04-01), Sagusa et al.

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