High reliability forensic color marking system

Details High reliability forensic color marking system High reliability forensic color marking system

2006-02-21

2006-02-21

Coles, Edward (Department: 2622)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C358S526000, C380S051000, C382S100000, C382S232000

Reexamination Certificate

active

07002710

ABSTRACT:
A forensic marking system and method for identifying the printing device on which a medium was printed. Encoded forensic markings which identify the device but are of low perceptibility to the human eye are superimposed on the printed image. The markings have a color, size, density, and repetition pattern that only minimally affect print quality while providing highly accurate identification of the printing device, even if the printed medium contains high-density image content.

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