German Anon here.

I saw a lot of anons talking about the pool picture and the picture being compressed so much to the point that some parts are not clearly visible.

Here is the source code of the compressor: https://github.com/facebookincubator/spectrum

I don't know of any possibility to reverse the compression, but I haven't looked into that topic.

So if anyone is able to reverse the compression process the algorithm will be the first spot to look at.

o7 frens