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#pil logs for Wednesday the 4th of February, 2015

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[00:04:19] <Ironhand> hello, can anyone suggest an efficient way to convert an image from RGB to grayscale using a custom function?
[00:05:42] <Ironhand> (I need to match the Y channel from CImg's RGBtoYCbCr exactly, which uses Y = (66*R + 129*G + 25*B + 128)/256 + 16 )