Edge-detection based noise removal algorithm
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United States of America Patent
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May 8, 2001
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Dec 8, 1997
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Dec 8, 1997
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Abstract
What is disclosed is a method for removing noise by distinguishing between edge and non-edge pixels and applying a first noise removal technique to pixels classified as non-edge pixels and a second noise removal technique to pixels classified as edge pixels. The methodology operates on images while in a Color Filter Array (CFA) domain prior to color interpolation, and uses techniques suited to the classification, whether edge or non-edge.
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