Circuit for improving the quality of digitized line images

Details Circuit for improving the quality of digitized line images Circuit for improving the quality of digitized line images

Filed on

1981-09-02

Date issued

1984-05-22

Examiner

Murray, Richard

Patent Class

Facsimile and static presentation processing

SubClass

Facsimile

SubSubClass

Specific signal processing circuitry

Other Related Categories

358 96, 358260, H04N 514

Type

Patent

Status

active

Patent number

044504837

Description

ABSTRACT:
The invention relates to a system for sequentially analyzing each data point representing a digitized video line image and modifying the point to improve the quality of the image based upon an examination of surrounding data points. Specifically, data comprising a digitized scanned image with each point represented by a one bit digital signal is stored such that a matrix of data is continually supplied to a data multiplexer. The data multiplexer selects the portion of the matrix data to be compared to predetermined criteria to determine whether or not the data point being analyzed should be changed to improve the quality of the image.

REFERENCES:
patent: 4143401 (1979-03-01), Coviello
patent: 4323974 (1982-04-01), Sekigawa
patent: 4355337 (1982-10-01), Sekigawa

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