Method and system for extracting information from images in...

Details Method and system for extracting information from images in... Method and system for extracting information from images in...

2006-01-17

2006-01-17

Chang, Jon (Department: 2623)

Image analysis

Color image processing

Pattern recognition or classification using color

C382S170000, C382S172000, C382S176000, C358S466000

Reexamination Certificate

active

06987879

ABSTRACT:
Characters or image portions are extracted from a background whose color is similar to that of the characters or the image portions. In order to chromatically isolate the characters and the image portions, a threshold value used for binarization is adjusted as the binarization is repeated as necessary or for a predetermined number of times. The adjusted threshold value allows the chromatic isolation of similar colors.

REFERENCES:
patent: 4656665 (1987-04-01), Pennebaker
patent: 6023526 (2000-02-01), Kondo et al.
patent: 6115491 (2000-09-01), Rudd et al.
patent: 6233354 (2001-05-01), Nakatani
patent: 6324302 (2001-11-01), Sugiura
patent: 08123901 (1996-05-01), None
“Recognition of Chinese Business Cards” by Yaw-Huei Chiou et al. 1997 IEEE, Procedings of the Fourth International Conference pp. 1028-1032.
U.S. Appl. No. 00/487,340, filed on Jan. 19, 2000, titled: A Method, Computer Readable Medium and Apparatus for Extracting Characters from Color Image Data.

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