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Better alpha component fix for xbrz

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Peter Thoman 2013-05-03 02:44:27 +02:00
parent d8df8a6796
commit ed870dbcc9
1 changed files with 1 additions and 1 deletions
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ext/xbrz/xbrz.cpp
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@ -419,7 +419,7 @@ double distYCbCrA(uint32_t pix1, uint32_t pix2, double lumaWeight)
const double c_r = scale_r * (r_diff - y);
//we skip division by 255 to have similar range like other distance functions
return (std::sqrt(square(lumaWeight * y) + square(c_b) + square(c_r)))*0.67 + square(static_cast<int>(getAlpha(pix1)) - getAlpha(pix2))*0.33;
return std::sqrt(square(lumaWeight * y) + square(c_b) + square(c_r)+ square(static_cast<int>(getAlpha(pix1)) - getAlpha(pix2)));
}