Processing apparatus capable of discriminating between pseudo ha

Details Processing apparatus capable of discriminating between pseudo ha Processing apparatus capable of discriminating between pseudo ha

1994-06-02

1995-10-17

Groody, James J.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358456, 382270, G06K 900, H04N 140

Patent

active

054595878

ABSTRACT:
In an image processing apparatus for processing inputted binary image data including a first area in which data are binarized by a pseudo half-tone binarizing method and a second area in which data are binarized using a predetermined threshold value by a non-half-tone binarizing method, there is calculated a number of adjacencies representing an adjacency state of the same kind of pixels located within a block area composed of a plurality of pixels including a specified pixel to be processed. Further, there is judged whether each pixel of the inputted binary image data is included in the first area or the second area, based on the calculated number of adjacencies.

REFERENCES:
patent: 4903316 (1990-02-01), Hongo et al.
patent: 5016118 (1991-05-01), Nannichi
patent: 5018024 (1991-05-01), Tanioka
patent: 5182778 (1993-01-01), Rudak et al.
patent: 5202936 (1993-04-01), Kobiyama
Yoshinobu Mita et al., "Igher Fine Multi-Value Recovery of Binary Image by Neural Network", Japan Hard Copy, '90, NIP-24, pp. 233-236, 1990.

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