About Equation 7 in paper 3.2

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In paper, Equation 7 is FSSAM = αFscale + (α-1)F, but in Fig. 4, it shows α and (1-α). And in your code, it's (1 - self.gamma). So I think the Equation 7 should be FSSAM = αFscale + (1-α)F.