Hybrid quantization method for color document reproduction

Details Hybrid quantization method for color document reproduction Hybrid quantization method for color document reproduction

H - Electricity

04

N

H04N 1/50 (2006.01) B41J 2/525 (2006.01) G06K 15/02 (2006.01) H04N 1/52 (2006.01)

Patent

CA 2140410

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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