The paper you linked doesn’t reveal blurred versions of the images being hashed. It does train a classifier to determine which of 1,000 ImageNet classes an image belongs to, which “achieved a top-1 test accuracy of 4.34%”.
Then, that’s the wrong paper. I’ll find it and link it as a reply to this comment. Probably tomorrow morning.
Then, that’s the wrong paper. I’ll find it and link it as a reply to this comment. Probably tomorrow morning.