Image processing apparatus
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United States of America Patent
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Sep 11, 1990
Grant Date -
N/A
app pub date -
Jun 6, 1988
filing date -
Jun 5, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In order to correct the swathe related banding effect often seen on swathe-scanned imagers a vertical smoothing function separates out artifact detail from the idealized image and derives, from this, proportional corrections for each channel within a swathe. In cases where the artifact varies from swathe to swathe a second algorithm is used to obtain correction values for each line of the image.
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