Image processing apparatus using two-dimensional space frequency

Details Image processing apparatus using two-dimensional space frequency Image processing apparatus using two-dimensional space frequency

1989-11-17

1991-05-21

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358456, 358462, 382 52, H04M 140

Patent

active

050180240

ABSTRACT:
A image processing apparatus capable of faithfully reproducing half tone image, line image and dot image by distinguishing the nature of the original image. The image is discriminated by the distribution of its spatial frequency.

REFERENCES:
patent: 3973239 (1976-08-01), Kakumoto et al.
patent: 4138693 (1979-02-01), Iizuka et al.
patent: 4194221 (1980-03-01), Stoffel
patent: 4403257 (1983-09-01), Hsieh
patent: 4414581 (1983-11-01), Kato et al.
patent: 4495522 (1985-01-01), Matsunawa
patent: 4503556 (1985-03-01), Scherl et al.
patent: 4524385 (1985-06-01), Billingsley et al.
patent: 4547811 (1985-10-01), Ochi et al.
patent: 4554593 (1985-11-01), Fox et al.
patent: 4570186 (1986-02-01), Kurata
patent: 4578712 (1986-03-01), Matsunawa
patent: 4595956 (1986-06-01), Kawamura et al.
patent: 4663662 (1987-05-01), Sekizawa et al.

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