Image signal processing apparatus

Details Image signal processing apparatus Image signal processing apparatus

1991-09-12

1993-11-30

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358448, 382 54, H04N 140

Patent

active

052670554

ABSTRACT:
An image processing apparatus has an image sensor for inputting image data obtained by reading an image, a shading correction processing unit for correcting variations in image data input from the image sensor on the basis of correction data, an arithmetic operation processing unit for performing image processing of the image data input from the image sensor, and a memory for storing the correction data to be supplied to the shading correction processing unit and image data to be supplied to the arithmetic operation processing unit.

REFERENCES:
patent: 4554583 (1985-11-01), Saitoh et al.
patent: 4672682 (1987-06-01), Naruse et al.
patent: 4774590 (1988-09-01), Haganuma et al.
patent: 4827533 (1989-05-01), Tanaka
patent: 4896222 (1990-01-01), Fukai

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