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Fix Intensity calculation for pixel.

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This commit is contained in:
Pavel Krajcevski 2013-10-11 21:37:06 -04:00
parent e21ffecfa3
commit d3fd98c8fa
1 changed files with 5 additions and 5 deletions
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10
Base/src/Pixel.cpp
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@ -192,11 +192,11 @@ namespace FasTC {
float Pixel::ToIntensity() const {
// First convert the pixel values to floats using premultiplied alpha...
float a = ConvertChannelToFloat(A(), m_BitDepth[0]);
float r = a * ConvertChannelToFloat(R(), m_BitDepth[1]);
float g = a * ConvertChannelToFloat(G(), m_BitDepth[2]);
float b = a * ConvertChannelToFloat(B(), m_BitDepth[3]);
return r * 0.21f + g * 0.71f + b * 0.07f;
double a = ConvertChannelToFloat(A(), m_BitDepth[0]);
double r = a * ConvertChannelToFloat(R(), m_BitDepth[1]);
double g = a * ConvertChannelToFloat(G(), m_BitDepth[2]);
double b = a * ConvertChannelToFloat(B(), m_BitDepth[3]);
return static_cast<float>(r * 0.2126 + g * 0.7152 + b * 0.0722);
}
uint32 Pixel::Pack() const {