I'd say that the project confirms that PhotoDNA is not reversible. This project generates discolored deformed thumbnails with maybe 12 pixels of resolution, an

I'd say that the project confirms that PhotoDNA is not reversible. This project generates discolored deformed thumbnails with maybe 12 pixels of resolution, and that's after addition of synthesized/imaginary data into them. Without priming by looking at the ground truth image, any attempts to guess what was in the images is just a Rorschach test.