Halftoning method and apparatus, and computer-readable...

Details Halftoning method and apparatus, and computer-readable... Halftoning method and apparatus, and computer-readable...

2007-02-13

2007-02-13

Lee, Thomas D. (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C358S003030, C358S003060, C382S237000, C382S252000

Reexamination Certificate

active

09818498

ABSTRACT:
A halftoning apparatus free of the occurrence of moiré and other artifacts under a simple technique. In the apparatus, the estimating section calculates the pixel value of the noteworthy pixel, which is to be converted into a binary value, based on other pixel values than that of the noteworthy pixel, and the binarizing section converts the multilevel value of the noteworthy pixel into a binary value.

REFERENCES:
patent: 5107346 (1992-04-01), Bowers et al.
patent: 5208684 (1993-05-01), Itoh
patent: 5754311 (1998-05-01), Ray
patent: 5757517 (1998-05-01), Couwenhoven et al.
patent: 5-142746 (1993-06-01), None
patent: 6-6586 (1994-01-01), None

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