Dot-gain reduction method for multi-level halftoning

Details Dot-gain reduction method for multi-level halftoning Dot-gain reduction method for multi-level halftoning

2004-02-26

2009-06-30

Poon, King Y (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C358S001900, C358S003210, C358S003230, C382S162000, C382S165000, C345S612000

Reexamination Certificate

active

07554696

ABSTRACT:
A method for minimizing color-image halftone dot-gain in the output of a multi-level halftone color-imaging output device. The method includes characterizing that device's halftone output, on a per-color basis, regarding pixel-pattern-specific dot gain which can be related to device pixel-infeed intensity levels, and from that characterizing, creating, and then applying to throughput color-image files, on a pixel-by-pixel basis, and for each output color producible by the device, a pixel-to-device infeed intensity correction value, thus to minimize device-output dot gain.

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