Does pytorch provide ZCA matrix for CIFAR10 and 100?

vision
1

Hi,

as titled, recently I am looking into preprocessing and want to try some whitening methods.

ZCA sounds good to me but my hardware cannot support the calculation of matrix multiplication of [50000, 3072]

so I am wondering…does pytorch provide ZCA function? or ZCA matrix? …or is there a way to estimate the ZCA matrix for the whole dataset?

P.S: I have found a github repo providing CIFAR10 ZCA matrix(though not sure if it is accurate or not), i am still looking for CIFAR100 ZCA matrix and wondering how people will handle dataset like imagenet with few million images???

thanks in advance