Texas is suing all of the big TV makers for spying on what you watch

Re:Texas is suing all of the big TV makers for spying on wha... by autoexec on Thursday December 18, 2025 @06:44PM (#46320427)

> The actual screenshot isn’t sent, some hash is generated from the screenshot and compared against a library of known screenshots of ads/shows/etc for similarity.

this is most likely the case, although there's nothing stopping them from uploading the original 4K screengrab in cases where there's no match to something in their database which would allow them to manually ID the content and add a hash or just scrape it for whatever info they can add to your dossier.

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Re:Texas is suing all of the big TV makers for spying on wha... by SubiculumCode on Friday December 19, 2025 @12:08PM (#46328200)

I thought that similar inputs do not give similar hashes..but apparently that is cryptographic hashing. Locality-Sensitive Hashing methods (e.g. Perceptual hashing[1]) makes similar inputs have similar hashes.

[1] https://en.wikipedia.org/wiki/Perceptual_hashing

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Re:Texas is suing all of the big TV makers for spying on wha... by bequanna on Friday December 19, 2025 @12:30PM (#46328472)

Ah, bingo, yes!

I should have been more specific in my comment. Perceptual hashing allowsfor higher similarity scores between similar looking images.

Lots of cool techniques to experiment with. Highly recommend playing around if you’re interested.

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Re:Texas is suing all of the big TV makers for spying on wha... by SubiculumCode on Saturday December 20, 2025 @02:16PM (#46338737)

I immediately did a little exploration for potential utility in neuroimaging analyses...not that anything was immediately obvious to me, but I love learning about things like this.

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