Image processing apparatus

Details Image processing apparatus Image processing apparatus

1991-09-12

1994-06-14

Powell, Mark R.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358466, H04N 140

Patent

active

053215230

ABSTRACT:
An image processing apparatus displaying an identification performance between the image of half-tone and an image of tone other than the half-tone includes a device for correcting the characteristics of the input image signal and an identifying device capable of identifying whether the input image signal is the half-tone image or not without use of the image signal whose characteristics have been corrected. In accordance with the result of the identification performed by this identifying device, an output image signal is selected.

REFERENCES:
patent: 4414581 (1983-11-01), Kato et al.
patent: 4554593 (1985-11-01), Fox et al.
patent: 4686579 (1987-08-01), Sakamoto
patent: 4723173 (1988-02-01), Tanioka
patent: 4786976 (1988-11-01), Takao et al.
patent: 4856075 (1989-08-01), Smith

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