DupDetector is a freeware utility for finding and removing duplicate and near duplicate images from your image collections.
A useful tool for everyone who has large image collections. Even stock commercial collections are often littered with exact duplicates and multiple images only sharpened, brightened or with slight color modification). If you have large image collections, test them with DupDetector. Supports 10 image file formats (jpg, gif, bmp, png, tif, pcx, tga, wmf, emf, psp).