Method of determining an exposure for use in an image forming ap

Details Method of determining an exposure for use in an image forming ap Method of determining an exposure for use in an image forming ap

1991-07-24

1994-01-25

Rutledge, D.

Photocopying

Projection printing and copying cameras

Illumination systems or details

355 77, G03B 2700

Patent

active

052819957

ABSTRACT:
Utilizing fuzzy theory, the exposure is determined based on an exposure operational formula defined for each of a plurality of previously classified patterns of a color original image. The color original image is divided into a multiplicity of portions for photometric purposes and, for the resulting photometric data, a plurality of features are evaluated. Utilizing fuzzy theory, a coincidence factor with a judging condition for judging the magnitude of the feature value is evaluated for each of the feature values. A coincidence factor for the pattern is evaluated from those coincidence factors to determine a weight for the pattern. Using this weight, a weighted mean of the exposures which is determined from the exposure operational formula is calculated to obtain a specific exposure.

REFERENCES:
patent: 4885705 (1989-12-01), Choi

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