Adaptive error diffusion thresholding for document images

Details Adaptive error diffusion thresholding for document images Adaptive error diffusion thresholding for document images

1990-03-23

1991-10-22

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

358465, 382 50, G06K 900

Patent

active

050602845

ABSTRACT:
Apparatus for converting multilevel video images into a bilevel image having an accurate rendition of the original grayscale of the image. The apparatus can provide an improved rendition of low contrast images.

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