Image character enhancement using a stroke strengthening kernal

Details Image character enhancement using a stroke strengthening kernal Image character enhancement using a stroke strengthening kernal

1988-12-26

1988-12-13

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

382 54, 358166, G06K 944

Patent

active

047916796

ABSTRACT:
Character stroke is strengthened by processing video image data with a 16.times.16 kernal, and moving the kernal one pixel at a time through the image. For each pixel position, sections of the kernal, are selectively filled with black pixels in proportion to the number of black pixels in each section, in accordance with a set of predetermined rules.

REFERENCES:
patent: 3573789 (1971-04-01), Sharp et al.
patent: 3624606 (1971-11-01), Lefevre
patent: 3688266 (1972-08-01), Watanabe et al.
patent: 4010446 (1977-03-01), Rawa
patent: 4124870 (1978-11-01), Schatz et al.
patent: 4437122 (1984-03-01), Walsh et al.
patent: 4703363 (1987-10-01), Kitamura

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