Closed aliasvishnu closed 1 year ago
I have the same question !
It's been a little while but IIRC its so that you dont change the aggregate strength of the signal, aka the full mean (here old_mean). We still want positives to be more strong of an attractive force than negatives and this operation makes sure the aggregate strength remains unchanged
As per my understanding, in this code for spatial centering, the operation
fd -= fd.mean([3, 4], keepdim = True)
should have been enough.Can you please correct my understanding/offer intuition into this segment of code - especially why
fd = fd - fd.mean() + old_mean
is done? Thank you.