Method and apparatus for thinning alphanumeric characters for op

Details Method and apparatus for thinning alphanumeric characters for op Method and apparatus for thinning alphanumeric characters for op

1990-06-05

1991-09-17

Moore, David K.

Image analysis

Histogram processing

For setting a threshold

382 47, 382 54, G06K 944

Patent

active

050502298

ABSTRACT:
The width of each stroke in a character image is reduced one pixel at a time over a series of repetitive cycles until the number of cycles exceeds a predetermined number proportional to the thinnest character stroke observed in the character image. The process is then continued until the character has been skeletonized, but with the added constraint that the existing end point pixels of character strokes are retained.

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Hilditch, "Linear Skeletons from Square Cupboards," Machine Intelligence, Edinburgh University Press (1969) vol. 4, pp. 403-420.

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