Framed-area defining rectangle forming device

Details Framed-area defining rectangle forming device Framed-area defining rectangle forming device

1995-05-30

1997-03-04

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358448, 382282, 382283, 382287, H04N 1387, H04N 140, G06K 920

Patent

active

056085443

ABSTRACT:
In an image forming device recognizing a specified area as a rectangular shape in an original image in which the area is specified by a frame indicated by use of a marker pen or the like, erroneous detection of a rectangular shape due to noise is prevented. Pixels having the halftone value in the image data are recognized as a frame and an area surrounded by the frame is defined by a rectangle and rectangle information thereof is provided. The size of the rectangle indicated by the rectangle information is determined, and if the size of the rectangle is smaller than a preset value, the rectangle information is eliminated as invalid information.

REFERENCES:
patent: 5123062 (1992-06-01), Sangu
patent: 5140440 (1992-08-01), Sasaki

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