Method of and apparatus for removing artifacts from a reproducti

Details Method of and apparatus for removing artifacts from a reproducti Method of and apparatus for removing artifacts from a reproducti

1996-02-07

1998-07-07

Boudreau, Leo

Image analysis

Image enhancement or restoration

Edge or contour enhancement

382275, 358455, 358456, G06K 940, H04N 140

Patent

active

057781052

ABSTRACT:
A method of and system for reducing aliasing effects in a digital reproduction of an original image are disclosed. A first set of pixels extending along a first direction in the digital reproduction and satisfying an edge condition is found and a second set of pixels lying on a first line and extending along the first direction are identified from the first set of pixels and from the sampled values associated with pixels lying in at least one additional line extending along a second direction transverse to the first direction. The sampled values for the pixels lying on the first line are modified toward a first value and the sampled values for pixels defining a second line adjacent the first line are modified toward a second value.

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