AntiDupl.NET program will help you automate this process. It can find and display duplicate images in the main graphic formats: JPEG, GIF, TIFF, BMP and PNG.
The comparison is based on the contents of the files, so the program can find not only almost identical, but similar images. In addition, the program can find images with some types of defects.
AntiDupl.NET is free, simple to use, has high speed and accuracy of work, supports Russian and English interface.
Requires: Microsoft .NET Framework 2.0.
What´s New in version 2.3.1:
Reviewer: -TerryB Review Date: 2012-10-03
Average Rating (5 Votes )
Pros: When it worked it worked well
Cons: The search crashed more often than it searched. The search results window opened and closed, but not always, just mostly.
Other Thoughts: I couldn't see any option to contact the developers. Which is not about free support for a free product. It's about giving them the feedback to make it work well.