Background suppression method and apparatus
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United States of America Patent
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Jun 23, 2009
Grant Date -
Jan 25, 2007
app pub date -
Jul 20, 2005
filing date -
Jul 20, 2005
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Abstract
An original image is received in a red-green-blue color space. Pixels in the original image are converted to a luminance-chrominance color space. Background pixels in the original image are determined by comparing a luminance value of each pixel to a selectable luminance threshold, and comparing chrominance value of each pixel to a predetermined chrominance threshold. Chrominance values of the background pixels in each chrominance channel are adjusted.
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