ermig1979
commented
3 years ago See the column "Difference" - it displays the percentage mean-square difference of content of pictures of duplicate pair. If the images are fully identical, the difference is shown in green.
https://ermig1979.github.io/AntiDupl/data/help/english/index.html?page=table.html
The functionality is great. I'd love to do a first pass where it was looking for literally identical files. Maybe there's a way to achieve this now?