Privacy@Lemmy.ml: Could websites and data brokers track you with your profile pictures?
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Privacy@Lemmy.ml: Could websites and data brokers track you with your profile pictures?

I only just thought of this. I have the same cartoon-y profile pic from a foreign TV show on a bunch of my accounts, I wonder if its unique enough and worth tracking.

can’t you quantise and downscale the image, then take the hash?

That works too but then the image will be the resolution of a Minetest texture after uploading.

no i mean downscaling and quantising before taking the hash to be able to reliably get the same hash for images that have been compressed, downscaled, had individual pixels edited, etc

Oh that’s smart but I don’t think they use it for tracking now. The most they can do is check the hash for known CSAM.

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