Facsimile and static presentation processing – Natural color facsimile – Specific image-processing circuitry
Patent
1994-03-02
1995-02-28
Rogers, Scott A.
Facsimile and static presentation processing
Natural color facsimile
Specific image-processing circuitry
358534, 358535, 358536, H04N 140, H04N 146
Patent
active
053942523
ABSTRACT:
An image processing system for preparing a color document for printing, each discrete area or pixel in the image described by a signal having a number of possible states greater than can be rendered by a selected printer, in which each separation of the image is halftoned, with at least one of the separations processed with a non-periodic halftoning method, and at least one of the remaining separations processed with a periodic pattern. Preferably, in a printer printing with colorants approximating cyan, magenta, yellow and black, one of the non-yellow separations is processed with the non-periodic halftoning method.
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Eschbach Reiner
Holladay Thomas M.
Costello Mark
Rogers Scott A.
Xerox Corporation
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