Instance Normalization

• Contrast Normalization
• $$y_{tijk}=\frac{x_{tijk}-{\mu }_{ti}}{\sqrt{{\sigma }_{ti}^2+ϵ}},{\mu }_{ti}=\frac{1}{HW}\sum _{l=1}^W\sum _{m=1}^H{x}_{tilm},{\sigma }_{ti}^2=\frac{1}{HW}\sum _{l=1}^W\sum _{m=1}^H(x_{tilm}-m{u}_{ti}{)}^2$$

$$-Thispreventsinstance-specificmeanand[Covariance](Covariance.md)shiftsimplifyingthelearningprocess.-Intuitively,thenormalizationprocessallowstoremoveinstance-specificcontrastinformationfromthecontentimageinatasklikeimagestylization,whichsimplifiesgeneration.-![](../images/Pasted$$