Comment by roberttod

4 years ago

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.