Visual image noise eliminating system

Details Visual image noise eliminating system Visual image noise eliminating system

1979-08-30

1981-11-03

Griffin, Robert L.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358167, 364515, H04N 140, H04N 531

Patent

active

042988950

ABSTRACT:
Method and apparatus for eliminating noise in a digitally recorded visual image wherein the proportion of picture elements in an area surrounding an objective area having a first visual level or component is determined and the objective area concluded as having the same visual level or component when the proportion is above a predetermined value. In one embodiment, both picture elements in the surrounding and objective areas are counted to determine the proportion while in another only those picture elements in the surrounding area are counted.

REFERENCES:
patent: 3443026 (1969-05-01), Townsend
patent: 3472958 (1969-10-01), Estock
patent: 3652791 (1972-03-01), Shuey
patent: 4196453 (1980-04-01), Warren
patent: 4196454 (1980-04-01), Warren

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