Which metric is best for image comparision?

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Hey there, we are using GraphicsMagick for image comparision, And for Metric comparision we are considering MSE metric. So, is this right and best metric to use or is there any other best and accurate metric available as well as tool ?

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Depends, I don’t think there’s one best choice for all textures.

MSE might be a reasonable choice for non-color data like normal maps. For base color maps or rendered images you might consider something perceptual. I don’t know what GraphicsMagick offers, but GitHub - google/butteraugli: butteraugli estimates the psychovisual difference between two images is one option here.

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