Blur tools for Signal: if you take or edit photos of crowds or strangers with Signal, you can use our face blur tool to quickly hide people’s biometric face data.
You can then export the photo from Signal if you want to post it publicly.
Blur tools for Signal: if you take or edit photos of crowds or strangers with Signal, you can use our face blur tool to quickly hide people’s biometric face data.
You can then export the photo from Signal if you want to post it publicly.
I recall a story of a pedophile being caught because they posted pictures using a radial warp on the face. It wasn’t too hard for enforcement to code a filter that undoes the radial warp, and instantly saw the original photo to identify and lock away the creep.
A warp doesn’t technically lose the information, it merely displaces it. A good blur algorithm on the other hand will lead to loss of information.
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This would demonstrate it well with physical concepts
https://youtu.be/UpJ-kGII074?si=EoQQeplKXYj5kMT0
Here is an alternative Piped link(s):
https://piped.video/UpJ-kGII074?si=EoQQeplKXYj5kMT0
Piped is a privacy-respecting open-source alternative frontend to YouTube.
I’m open-source; check me out at GitHub.
For those who are interested, here is a 20 minute mini-documentary about this individual that goes by the name of Mr. Swirl.
Here is an alternative Piped link(s):
Mr. Swirl
Piped is a privacy-respecting open-source alternative frontend to YouTube.
I’m open-source; check me out at GitHub.
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Based on the documentary linked by @alwaysconfused@lemmy.ca, at 9:50, it looks like the swirl effect was unique in being able to be undone, since it was neither “typical censor nor blur”.