Copyright protection in color thermal prints

Details Copyright protection in color thermal prints Copyright protection in color thermal prints

1996-02-08

1998-10-13

Moses, R. L.

Electrophotography

Image formation

Exposure

380 51, 380 55, 358450, 347172, 399366, G03G 2100, G03G 2104

Patent

active

058226605

ABSTRACT:
Disclosed is a copy protection method for identifying copied images that have been captured or generated in electronic form. The method generates information in electronic form for causing the printing of copy restrictive information as a plurality of contiguous pixels, of substantially yellow color onto the hard copy. The visibility of the yellow pixels is very low until a cyan illumination is applied to the protected image then the copy restrictive information becomes highly visible.

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