Automatic exposure corrections for photographic printer

Details Automatic exposure corrections for photographic printer Automatic exposure corrections for photographic printer

1978-04-17

1979-09-18

Hix, L. T.

Photocopying

Projection printing and copying cameras

Multicolor picture

355 68, 355 77, 355 83, 355 88, G03B 2778

Patent

active

041681207

ABSTRACT:
An automatic photographic printer includes a sensor system for providing density signals indicative of measured optical density of a photographic film at a plurality of defined areas of the film. Photographic films containing landscape type scenes, snow/beach type scenes, and other scenes which might be incorrectly identified as subject density failures, are identified. The identified films are excluded from receiving a subject density failure exposure correction, while the remaining films are subjected to an automatic subject density failure exposure correction which is derived from the density signals.

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"Gretag Color Scanning Color Printer 3140".

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