It’s been a long time since I had to implement PhotoDNA (helped write a PHP native version of the PhotoDNA hash function at Tumblr), can you indicate if pHash creates compatible hashes to PhotoDNA’s output?
By the way, would be glad to connect and chat, especially if you have any thoughts on pain points associated with perceptual hashing (email in profile).
That’s what I thought, but your mention of pHash alluded to it maybe being an open source drop in replacement for PhotoDNA, so I wanted to clarify instead of assuming.
My email is in my profile too, feel free to reach out if I forget.