Comment by benrbray
4 years ago
It's also just plain absurd. Hundreds of pictures of my own children at the beach in their bathing suits? No problem. Hundreds of photos of other peoples' children in bathing suits? Big problem. Of course, the algorithm is powerless to tell the difference.
I believe it's built on hashing, so it'll only find images in the db they have with already known content. Your own photos won't get mixed up.
Ah, I guess unsurprisingly the twitter thread is light on details. I saw "perceptual hash" which I usually interpret to mean some kind of feature-based semantic hash that is not as sensitive to small edits. Even if it isn't currently used, the door is open for it to be implemented in the future.
Perceptual hashing would make bit more sense. Flip one bit from the image to avoid detection otherwise.