Method and apparatus for contrast enhancement
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United States of America Patent
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Apr 2, 2013
Grant Date -
Dec 18, 2008
app pub date -
Jan 3, 2008
filing date -
Jun 13, 2007
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Abstract
A method of enhancing a contrast and an apparatus for enhancing a contrast are provided. The method of enhancing the contrast includes: dividing an image into a plurality of blocks and calculating an average luminance value of each block; interpolating a peripheral luminance value for each input pixel of the image by using the average luminance value; and enhancing the contrast of the input pixel by using the interpolated peripheral luminance value of the input pixel and a unique luminance value of the input pixel.
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