Single pass color substitution

Details Single pass color substitution Single pass color substitution

1989-11-30

1992-04-14

Groody, James J.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 78, 355326, G03F 308

Patent

active

051052660

ABSTRACT:
A copier capable of selectively changing an original color on a document to a target color on a copy, includes a digitizer for designating a spacial coordinate at which appears the original color to be changed to a target color. In a single scan, a scanner generates a series of electrical signals characteristic of the image content of the document, including the image content at the designated spacial coordinate. The generated signals are stored in a full page memory. As the stored signals are read from memory and supplied to a writer, color substitution is effected to the stored signals generated from portions of the document having a color substantially the same as that at the designated coordinate.

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