I used both:
https://github.com/dingkeyan93/DISTS/commits/master/DISTS_pytorch/DISTS_pt.py
(and)
https://github.com/dingkeyan93/IQA-optimization/commits/master/IQA_pytorch/DISTS.py
And the results are very different so which one is the official one?

(Folder name is irrelevant it is what I named my project without knowing there are similar projects out there with same name, its a custom project has nothing to do with other libraries out there named like it)