Methods for Performing Fast Detail-Preserving Image Filtering
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United States of America Patent
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Issued Date -
Dec 11, 2014
app pub date -
Aug 22, 2014
filing date -
Feb 24, 2011
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Abandoned
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Abstract
A method for performing fast detail-preserving filtering of an input digital image includes, for each pixel in the image, calculating the difference between the selected pixel and each of its four neighboring pixels located above, left, right, and below the selected pixel, calculating a scaled weighted sum of differences between the actual pixel and its four neighbors, where for each neighboring pixel the weight is an edge-sensing function having a data-adaptive scaling parameter function, and adding the weighted sum of differences to the value of the selected pixel.
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