Pixel error diffusion method

Details Pixel error diffusion method Pixel error diffusion method

1993-06-23

1995-07-18

Reinhart, Mark J.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358456, 358459, H04N 121

Patent

active

054346720

ABSTRACT:
Error distribution in printing and information processing systems is accomplished according to combined internal and external super-pixel error diffusion techniques, effective for distributing whole or fractional error contributions both within and without a selected super-pixel. For a particular super-pixel, error amounts of a selected internal subject pixel are provided to another internal subject pixel until a determined or selected final pixel error value within the selected super-pixel has been determined. This final, internal error value is distributed fractionally or wholly among selected super-pixels within a predetermined super-pixel neighborhood.

REFERENCES:
patent: 4930018 (1990-05-01), Chan et al.
patent: 5111302 (1992-05-01), Chan et al.

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