Error diffusion halftoning system

Facsimile and static presentation processing – Static presentation processing – Attribute control

Reexamination Certificate

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Details

C358S003050, C358S003220, C382S237000

Reexamination Certificate

active

07417771

ABSTRACT:
Artifacts of error diffusion halftoning are reduced by selecting a halftone threshold for a current pixel on the basis of an accumulated halftone error for the pixel and its neighbors.

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