Color film printing control method

Details Color film printing control method Color film printing control method

1982-03-22

1984-05-15

Wintercorn, Richard A.

Photocopying

Projection printing and copying cameras

Methods

355 38, G03B 2732

Patent

active

044485212

ABSTRACT:
Disclosed is a method of controlling color film printing to improve the quality of prints obtained from degraded or deteriorated negatives. The method includes measuring the three color densities (R, G, and B) of the mask of the negative, e.g. a transparent film portion, and comparing these densities with the average densities of the mask of a normal negative, and varying the exposure conditions to compensate according to the degree of difference detected.

REFERENCES:
patent: 4168120 (1979-09-01), Frier et al.

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