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submitted 1 year ago * by [deleted] from self.whatever
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[–]neolib 1 insightful - 1 fun1 insightful - 0 fun2 insightful - 0 fun2 insightful - 1 fun - 1 year ago (1 child)
PhotoDNA (which big websites use) is closed source though, and it's unclear (for me) whether open source ones from wiki article are good enough (https://www.phash.org & https://github.com/commonsmachinery/blockhash/).
[–][deleted] 3 insightful - 1 fun3 insightful - 0 fun4 insightful - 0 fun4 insightful - 1 fun - 1 year ago (0 children)
I have a C source file I can post. As I recall, the keywords are ahash, vhash, and ddhash. Or you can always go hacky and just downsample the colors to 5 bits and simhash the thing.
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[–]neolib 1 insightful - 1 fun1 insightful - 0 fun2 insightful - 0 fun2 insightful - 1 fun - (1 child)
[–][deleted] 3 insightful - 1 fun3 insightful - 0 fun4 insightful - 0 fun4 insightful - 1 fun - (0 children)