Image processing apparatus

Details Image processing apparatus Image processing apparatus

1989-04-14

1990-02-27

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

358456, 382 50, 382 53, G06K 936

Patent

active

049052942

ABSTRACT:
An image processing apparatus comprises image data input means and processing means for processing an input image data. The processing means includes image content discrimination means for discriminating whether the input image data represents a half-tone image, a line image or a combination thereof.

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patent: 3234513 (1966-02-01), Brust
patent: 3644890 (1972-02-01), Matthews
patent: 4194221 (1980-03-01), Stoffel
patent: 4414581 (1983-11-01), Kato et al.
patent: 4547811 (1985-10-01), Ochi et al.
patent: 4549220 (1985-10-01), Suzuki

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