Foreground erosion method and system for Multiple Raster Content (MRC) representation of documents
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United States of America Patent
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Sep 11, 2007
Grant Date -
Mar 18, 2004
app pub date -
Jul 1, 2003
filing date -
Jul 1, 2002
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A foreground erosion method is used to meet thin (but unbroken) text requirements using linear YCC segmentation. The method uses a fixed value subtracted from a gray selector signal, thereby thinning/eroding the foreground. In cases where the pixel would be converted from foreground to background, this is only done if a neighborhood test verifies that the thinning won't result in broken lines. The foreground erosion method attempts to match a couple of templates wherein if a match is found, then the adjustment is performed.
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