Recommendation: Avoiding convergence to initial image

[ariel415el]

Hi,

I got a tip from the authors: Generated iamges converging to the intial image can be avoided by fewer PNN iterations on the first level.

That is, replacing the line

GPNN/model/gpnn.py

Line 94 in 2d7994b

for j in range(self.T):

with
for j in range(1 if i == len(self.x_pyramid) - 1 else self.T):

Thanks for a great implementation.