System and method for scaling images
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United States of America Patent
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Sep 7, 2004
Grant Date -
May 16, 2002
app pub date -
Sep 10, 2001
filing date -
Sep 8, 2000
priority date (Note) -
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Abstract
A system and method are provided for calculating a target pixel for scaling an image comprising a plurality of source pixels. A contour is determined in the image using at least one of a first set of predetermined parameters. A filter tap configuration is adaptively selected from a predefined set of filter tap configurations in accordance with the determined contour. The predefined set of configurations includes a plurality of non-linear filter tap configurations. The target pixel is calculated by selectively convolving ones of the plurality of source pixels along a locus of the selected filter tap configuration with a weighting factor, and combining the convolved pixels.
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