Coder matched layer separation for compression of compound documents
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United States of America Patent
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Apr 11, 2006
Grant Date -
Jul 3, 2003
app pub date -
Dec 31, 2001
filing date -
Dec 31, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
Methods for decomposing compound documents for mixed raster content representation are provided. A method for decomposing an image includes the step of decomposing the image into a plurality of stripes. Each stripe is decomposed into foreground, background, and mask layers. The layers are interpolated to modify values of irrelevant pixels in order to achieve more efficient compression. The layers may subsequently be compressed with a coder.
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