Ecco un programmino molto interessante...
I wrote a lot of image (and not only image) processing algorithms. Most of them were for military proposes. Almost all of them are not secret, so why not to use war technologies for peace manners? Sitting one of those long evenings, I wrote a simple application, that seeks for similar (not by name of cause) images in your hard disk and make you able to delete them. I will not explain the search algorithm here, but post the application for free download. Try it, use it and tell me what you think about.
Download link e immagini campione alla Fonte: Find similar images on your computer with Duplicate Images Finder