3 ms·
It will be worse than that. Pixellation destroys information, it's not reversible in general. But in this case, what is left is enough for recovery, as source d
by jarman 12y ago
It will be worse than that. Pixellation destroys information, it's not reversible in general. But in this case, what is left is enough for recovery, as source domain (check number) is small. Gaussian blur is theoretically lossless (rounding loss and loss on image edges in practice) - you can take arbitrary image, blur it, reverse and get original+noise
- Udo 12y agoThanks for making me look deeper into what's going on with common blurring algorithms. My instincts were clearly wrong here, for years I thought reversing blurs wasn't feasible in practice. I was very, very wrong.
- sitkack 12y agoUnknown Partial Knowledge is a huge problem in human cognition. This blew my mind, https://www.youtube.com/watch?v=tyHBnT4PmTE https://www.youtube.com/watch?v=tyHBnT4PmTE
- Udo 12y agoThis is less surprising to me than the gaussian reversal, because this motion-deblurring technique relies on several images of the same object. It's still cool, though :)