Method and device for isolating figures in an image

Details Method and device for isolating figures in an image Method and device for isolating figures in an image

1976-04-29

1978-02-21

Britton, Howard W.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358138, H04N 718

Patent

active

040756580

ABSTRACT:
The graphic information contained in the image is converted by means of a television camera to a video signal constituted by a succession of lines, each line being sampled sequentially so as to obtain an ordered series of points which is stored in memory. The method consists in selecting a parent point forming part of an isolated figure of the image. All the points in which the level of blackening on the image exceeds an adjustable threshold value are isolated automatically by marking with an automaton coupled with the memory. All the marked points corresponding to the figure are extracted from the memory and the figure is reconstituted from the points.

REFERENCES:
patent: 2933008 (1960-04-01), Barnett
patent: 3354266 (1967-11-01), Dinenno
patent: 3674926 (1972-07-01), Dewey
patent: 3706851 (1972-12-01), Froehlich
patent: 3729584 (1973-04-01), DE Vos

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