Restoration and enhancement of scanned document images

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

Reexamination Certificate

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Details

C358S003260, C358S003270, C358S532000, C382S261000, C382S264000, C382S266000

Reexamination Certificate

active

07116446

ABSTRACT:
Processing of a pixel in a digital image includes performing inverse halftoning on the pixel with respect to a local pixel neighborhood; and performing selective sharpening on the inverse halftoned pixel with respect to the local pixel neighborhood.

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