Image reduction with controlled image thinning

Details Image reduction with controlled image thinning Image reduction with controlled image thinning

Filed on

1992-10-14

Date issued

1995-08-22

Examiner

Ip, Paul

Patent Class

Facsimile and static presentation processing

SubClass

Facsimile

SubSubClass

Specific signal processing circuitry

Other Related Categories

358426, 358438, 358500, G06F 1562

Type

Patent

Status

active

Patent number

054445493

Description

ABSTRACT:
In an image processing apparatus of this invention, change amounts of image data, of reception image data, which correspond to target lines with respect to a previous line are obtained, and line data corresponding to the minimum change amount is preferentially thinned, thereby performing image reduction in the sub-scanning direction.

REFERENCES:
patent: 3643016 (1972-02-01), Dattilo
patent: 4679090 (1987-07-01), Erhardt
patent: 5034814 (1991-07-01), Watson
patent: 5157519 (1992-10-01), Jacobs
patent: 5191438 (1993-03-01), Katsurada et al.
patent: 5276509 (1994-01-01), Mizuno et al.

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Also associated with

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