Image separator for color image processing

Details Image separator for color image processing Image separator for color image processing

1991-08-09

1992-07-28

Mancuso, Joseph

Image analysis

Histogram processing

For setting a threshold

358452, 358462, 358466, 382 50, G06K 934

Patent

active

051346664

ABSTRACT:
An image region segmentation system for segmenting a color image into a number of elemental regions according to the type of images contained in the elemental region comprises a first detection circuit for discriminating whether an elemental region under processing contains a black pixel or not, a second detection means for discriminating whether the elemental region under processing contains a color pixel or not, a first discrimination circuit for discriminating the elemental region as to whether or not the region includes a black pixel and simultaneously no color pixels, a line image recognition circuit for discriminating as to whether the image in the elemental region under processing includes a line or not, and a second recognition circuit for discriminating such that the elemental region under processing represents a bi-level black line when the elemental region under processing contains a black pixel and simultaneously no color pixels and further simultaneously when the elemental region represents a line.

REFERENCES:
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patent: 4953013 (1990-08-01), Tsuji et al.
patent: 4998122 (1991-03-01), Kanno et al.
patent: 5001767 (1991-03-01), Yoneda et al.
patent: 5014124 (1991-05-01), Fujisawa
patent: 5025481 (1991-06-01), Ohuchi
Nobuji Tetsutani et al., "Bilevel Rendition Method For Documents Including Gray-Scale and Bilevel Image", Institute of Electronics and Communication Engineers of Japan, (1984), Vol. J67-B, No. 7, pp. 781-788.

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