Download VisiPics, to find duplicate pictures
VisiPics is a free application that will help you find duplicate pictures. If you get too many pictures on your harddrive, it may happen that you also have many duplicates. VisiPics applies five image comparison filters in order to measure how close pairs of images on the hard drive are.
Visipics will detect two different resolution files of the same picture as a duplicate, or the same picture saved in different formats, or duplicates where only minor cosmetic changes have taken place.
Detected duplicates are shown side by side with pertinent information such as file name, type and size being displayed. An auto-select mode lets you choose if you want to keep the higher resolution picture, space-saving filetype, smaller filesize. Of course you can also manually select the images you don’t want to keep.
Tested on 100.000 pictures in a 15 Gb archive, VisiPics finished with full results in 3 hours. Note that false positives may come up.