Image analysis – Histogram processing – For setting a threshold
Patent
1991-12-30
1993-06-29
Boudreau, Leo H.
Image analysis
Histogram processing
For setting a threshold
382 27, G06K 944
Patent
active
052241793
ABSTRACT:
A method for improved thinning or skeletonizing handwritten characters or other variable-line-width images. The method scans a template set over the image to be thinned. Each template has a specific arrangement of dark and light pixels. At least one of those templates includes either more than three pixels per row or more than three rows of pixels. An odd number is good choice. Moreover, the templates are chosen so that each template can unconditionally delete image pixels without consideration of the effect of such deletions on the behavior of the other templates. Thus the templates are independent of each other.
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Denker John S.
Graf Hans P.
Henderson Donnie
Howard Richard E.
Hubbard Wayne E.
AT&T Bell Laboratories
Boudreau Leo H.
Brendzel Henry T.
Malvone Christopher N.
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