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!7585 fix api comment error in MSSSIM 

Merge pull request !7585 from caozhou/fix_api_comment_error
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mindspore-ci-bot 2020-10-22 10:04:01 +08:00 committed by Gitee
parent a12af32c40 86ca6b64eb
commit 1fccb01688
1 changed files with 1 additions and 1 deletions
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mindspore/nn/layer/image.py
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@ -267,7 +267,7 @@ class MSSSIM(Cell):
l(x,y)&=\frac{2\mu_x\mu_y+C_1}{\mu_x^2+\mu_y^2+C_1}, C_1=(K_1L)^2.\\
c(x,y)&=\frac{2\sigma_x\sigma_y+C_2}{\sigma_x^2+\sigma_y^2+C_2}, C_2=(K_2L)^2.\\
s(x,y)&=\frac{\sigma_{xy}+C_3}{\sigma_x\sigma_y+C_3}, C_3=C_2/2.\\
MSSSIM(x,y)&=l^alpha_M*{\prod_{1\leq j\leq M} (c^beta_j*s^gamma_j)}.
MSSSIM(x,y)&=l^\alpha_M*{\prod_{1\leq j\leq M} (c^\beta_j*s^\gamma_j)}.
Args:
max_val (Union[int, float]): The dynamic range of the pixel values (255 for 8-bit grayscale images).