I also posted this on github 1.
Following the official tutorial 2 on van Gogh’s Starry Night produces the results below. I’ve included the results from the original paper 1 for comparison. The notebook that generated these plots can be viewed here 1.
image780×1753
The original paper used Caffe’s pre-trained VGG19 network, which has a few differences:

The pixels are in the range of [0, 255] (Pytorch’s was trained in the range of [0, 1])
The color channels are in the order BGR (Pytorch’s is in the order of RGB)
The method of normalization is different.

Despite these differences, I would expect to see results that are closer to the original paper. What else could be causing such a large difference in results?