Perceptual-hashing Libraries

The algorithm to create a difference hash is very simple: I've found that dhash is great for detecting near duplicates (we found dupes using a size 8 dhash with a maximum delta of 2 bits). But becaus…

There's gonna be a lot of duplicates in almost any arbitrary collection ofimages, and it can actually be surprising how many. pHash lib, which is the core of the tool, easily detects cropped and reto…