Method of obtaining filtered values in a horizontal and vertical direction
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United States of America Patent
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Aug 14, 2012
Grant Date -
Feb 7, 2008
app pub date -
Oct 2, 2007
filing date -
Jun 15, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
In one embodiment, the method includes obtaining at least three horizontally successive reference pixel values including a pixel to be filtered, and applying first weight factors to at least each of the three horizontally successive reference pixel values. The first weight factors are different according to pixel position. A first filtered value is obtained by summing at least the three weighted horizontally successive pixel values. The method further includes obtaining at least three vertically successive reference pixel values including a pixel to be filtered, and applying second weight factors to at least each of the three vertically successive reference pixel values. The second weight factors are different according to pixel position. A second filtered value is obtained by summing at least the three weighted vertically successive pixel values.
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