Dot-matrix video enhancement for optical character recognition

Details Dot-matrix video enhancement for optical character recognition Dot-matrix video enhancement for optical character recognition

1990-08-31

1993-01-26

Moore, David K.

Image analysis

Histogram processing

For setting a threshold

382 50, G06K 940

Patent

active

051827786

ABSTRACT:
A method and apparatus for eliminating discontinuities inherent to binary digital image data when hard copy text is generated by a dot-matrix printer. An M.times.M matrix is moved over a bit-mapped image of said text one pixel at a time, and for each pixel position, pixels are selectively converted from white to black based on a predetermined set of rules.

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IBM Technical Disclosure Bulletin, vol. 32, No. 10B, Mar. 1990, NY., pp. 366-371, "N-Bit General Neighborhood Function Processing Element Operable at Image Rate".

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