Method and apparatus for analyzing and printing color photograph

Details Method and apparatus for analyzing and printing color photograph Method and apparatus for analyzing and printing color photograph

1986-02-18

1987-06-30

Hayes, Monroe H.

Photocopying

Projection printing and copying cameras

Multicolor picture

355 35, 355 77, G03B 2780

Patent

active

046766286

ABSTRACT:
This invention relates to the printing of color photographs onto photographic paper from color negatives, and more particularly to a method and apparatus for analyzing the color correction values necessary to achieve printing of such negatives in such a way as to produce a finished print having acceptable color rendition. A method and apparatus are contemplated by which an operator may directly view a color image of a negative from which printing is to occur and directly observe the effects on printing of variations in the spectral content of light to be used for printing. By determining the specific spectral response of a lot of printing paper, a standard correction may be established which will significantly reduce the need for trial by error correction of the printing process, effecting a saving in materials and supplies as well as in time.

REFERENCES:
patent: 3097563 (1963-07-01), Weisglass
patent: 3588246 (1971-06-01), July
patent: 3674364 (1972-07-01), Korman
patent: 4263001 (1981-04-01), Deutsch
patent: 4371259 (1983-02-01), Howitt

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