trotzig
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diffux
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coverage: 98.686% (+0.002%) from 98.684%
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lencioniConstantize some math from SnapshotComparisonImage#pixel_diff_score In #pixel_diff_score, we take the Euclidean distance between the RGBA channels of the 2 given colors over the maximum possible Euclidean distance. This gives us a percentage of how different the two colors are. Since the maximum possible Euclidean distance never changes, we can avoid performing the math (an exponent operation, a multiplication operation, and a square root operation) each time we want to get the pixel diff score of two colors. Since this has the potential of happening many many times, this should be a nice, little performance win. Change-Id: I90fd884c2
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