Timeline for How can I obfuscate a small section of a image on macOS?
Current License: CC BY-SA 4.0
4 events
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Aug 31, 2018 at 14:15 | comment | added | Cort Ammon | Here's an article, which links a paper. They were able to use hidden markov models to substantially automate the process. They presented success rates against various kinds of text (account numbers, natural language, etc.). That being said, I agree fully that the pixelation method does look better. | |
Aug 31, 2018 at 9:43 | comment | added | IconDaemon | I’ve found the Lifehacker article that posits this ‘method’ of deobfuscation, but I’m not convinced of its practicality. I favor the pixillation method because it has a softer look than the ‘redacted’ appearance one finds in declassified secret documents. | |
Aug 31, 2018 at 2:58 | comment | added | Cort Ammon | Worth noting is that there are known methods to recover information hidden behind pixelated blocks like this. Know your threat model: what kind of adversary are you worried about? In particular, this sort of attack has been used against people who pixelate their account number on checks. The format of the numbers on a check is very regular, making the attack easier. Arbitrary text is harder to recover than that. | |
Aug 30, 2018 at 19:30 | history | answered | IconDaemon | CC BY-SA 4.0 |