Character normalization using an elliptical sampling window for

Details Character normalization using an elliptical sampling window for Character normalization using an elliptical sampling window for

1989-11-20

1990-12-11

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

382 47, 382 54, 358433, 340731, G06K 956

Patent

active

049776029

ABSTRACT:
In character normalization for optical character recognition preprocessing employing horizontal and vertical scaling factors A and B, the value of each pixel in the normalized character image superimposed on the original character image is determined from the values of the pixels in the original image lying within an elliptical neighborhood surrounding the normalized character image pixel and having major and minor elliptical axes proportional to A and B.

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