Image Comparer was available as a giveaway on January 12, 2007!
While there are quite a few software applications that compare images in order to find duplicates, there is only one solution that has its own unique comparison algorithm. While most applications can only locate duplicate images of the same format, Image Comparer will identify the same images even if one is a JPEG and the other is a Bitmap image.
Furthermore, Image Comparer can identify duplicate images, even if they are of different size and resolution settings. The program's unique algorithm can also identify similar images, specifying their degree of similarity; 100% means the two images are identical, 95% means that one of the images was probably altered and so on.
Image Comparer is extremely useful to professional photographers, designers, and webmasters, who have "image-heavy" sites to maintain. The program is incredibly fast; after a minute or two one can see how many duplicate images are stored and how much disk space will be saved by removing the duplicates. The "dupes" can then be removed all at once with one click. Alternatively, a user can specify which images need to be deleted, moved or copied.
The list of supported image file formats includes JPEG, J2K, BMP, GIF, PCX, PNG, TIFF, TGA, ICO, and CUR.