PhotoDNA is a proprietary image-identification and content filtering technology widely used by online service providers. Although the design of the algorithm has never been publicly disclosed, a leaked software library that implements it became accessible through a repository on GitHub in 2021.
PhotoDNA is a proprietary image-identification and content filtering technology widely used by online service providers. Although the design of the algorithm has never been publicly disclosed, a leaked software library that implements it became accessible through a repository on GitHub in 2021.
== History ==
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).