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ateliercw/badDifference.swift

Created February 26, 2016 15:39
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badDifference.swift
func differenceFrom(otherRGBA: UIImage.RGBA) -> Int {
return Int(max(alpha, otherRGBA.alpha) - min(alpha, otherRGBA.alpha)) +
Int(max(red, otherRGBA.red) - min(red, otherRGBA.red)) +
Int(max(green, otherRGBA.green) - min(green, otherRGBA.green)) +
Int(max(blue, otherRGBA.green) - min(blue, otherRGBA.blue))
}
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