My implementation of Projected Distribution Loss (PDL) proposed in: Delbracio, Mauricio, Hossein Talebi, and Peyman Milanfar. "Projected Distribution Loss for Image Enhancement." arXiv preprint arXiv:2012.09289 (2020). [https://arxiv.org/abs/2012.09289]
There is also implementation of Sliced Wasserstein Loss. Very close to many other implementations on github. Feedback will be appreciated.