Image improvement after facsimile reception

Details Image improvement after facsimile reception Image improvement after facsimile reception

1993-08-23

1999-08-17

Nguyen, Madeleine

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358445, 382267, H04N 140, G06K 940

Patent

active

059401907

ABSTRACT:
A facsimile printer (1) in which sets of one or two pels contiguous to longer lines of such pels are reduced or eliminated. When reduced the smaller pels are positioned continuous to the longer line and are extended one pel on each side where the longer line exists. This reduces scanner errors and significantly improves images. Gray effects from dithering are not significantly effected when the pels are reduced and spread. When the image is graphic or otherwise more random than text scanned in the line and column direction, the correction may be deactivated.

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