Segmentation process for machine reading of handwritten informat

Details Segmentation process for machine reading of handwritten informat Segmentation process for machine reading of handwritten informat

1990-08-31

1992-03-31

Razavi, Michael

Image analysis

Histogram processing

For setting a threshold

382 13, 382 14, 382 15, 382 30, 382 18, G06K 934

Patent

active

051014394

ABSTRACT:
An improved machine process for recognizing the transition point between letters and digits in handwritten text is disclosed. The script, digits and/or letters, is mapped onto a pixel matrix. The entropy for each column for a range of assumed slant angles is analyzed to determine the angle at which image entropy is a minimum. By reverse-shifting the pixel array an amount equal to this angle, the slant component of the script is verticalized and the segmentation step which follows is more accurately accomplished.

REFERENCES:
patent: 4567610 (1986-01-01), McConnel
patent: 4594732 (1986-06-01), Tsuji
patent: 4850025 (1984-07-01), Abe

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