Given the polygons are regular shape and size it would be simpler then you might imagine. It just might take a couple of tries to get the size correct. For the

Given the polygons are regular shape and size it would be simpler then you might imagine. It just might take a couple of tries to get the size correct. For the blurred triangles I think it would take a bit more work but I'm fairly sure there are ways to detect which image has more edges based on which you can guess which is the blurred segment.