Image enhancement

Details Image enhancement Image enhancement

1981-12-07

1983-11-22

Wintercorn, Richard A.

Photocopying

Projection printing and copying cameras

Illumination systems or details

35016212, 355 77, G03B 2754

Patent

active

044165382

ABSTRACT:
Image enhancement is achieved to increase the ability to distinguish details otherwise difficult to discern in bright and dark areas of a photorecord by reflecting light off surface perturbations on the record and displaying the reflected light by means of schlieren optics.

REFERENCES:
patent: 3912386 (1975-10-01), Gorog et al.
patent: 4153336 (1979-05-01), Minami et al.

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