curious question from a non-programmer - are you checking against the exact same image (i.e. hashed), or is there an easy way of trying to match an image to a very similar one you've seen before?
Not OP, so I don't know what their website does, but there is a technique called "locality-sensitive hashing" that gives the same hash for similar items instead of exactly the same ones
flexagoon|1 month ago
https://en.wikipedia.org/wiki/Locality-sensitive_hashing