System and method for estimating color separation...

Details System and method for estimating color separation... System and method for estimating color separation...

2007-01-16

2010-11-02

Dehkordy, Saeid Ebrahimi (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C382S162000

Reexamination Certificate

active

07826095

ABSTRACT:
A method and system for estimating color separation misregistration of a printing system. The method may include marking a substrate to form a misregistration estimation patch. The misregistration estimation patch being formed by first and second color separations. The first color separation marking the substrate with a first halftone pattern. The first halftone pattern has a first halftone-frequency vector in a first direction and a second halftone-frequency vector in a second direction. The second color separation marking the substrate with a second halftone pattern. The second halftone pattern has a first halftone-frequency vector in a first direction and a second halftone-frequency vector in a second direction. The first and second halftone patterns form a moiré pattern. A deviation in at least one the halftone frequency vectors and/or the moiré pattern can be indicative of a color separation misregistration. The method also includes estimating the color separation misregistration of the printing system using the misregistration estimation patch.

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