IRatio (Image Ratio) can crop your images, it is a small utility designed to show, copy/move images by their width/height ratio.
From Author: By having hundreds of photos (thanks to the modern, filmless digital cameras:), and often printing them with the same paper format (personally 3:2), sometimes i don't recognize which photos i have already cropped and which ones still not (The guilty is my wife. A man doesn't make these mistake. This utility helps me to find those image i haven't cropped yet, before burning them on CD and carry it to the print service shop.

IRatio Main Features:
1. Independent cross-platform program
2. Fast scanning, thanks to Java Image I/O API (javax.imageio.*);
3. With an old Pentium(TM) III 700Mhz, IRatio scans more than 60 jpeg images (2592x1944 px) in about 2 sec.
4. With a modern Pentium(TM) Dual Core - E2180@2GHz, 100 images (2592x1944 px) were scanned in 250 ms.
5. Test for reporting only. For copy/move operations, of course, more time it's required.

Requirements:
* Java

The license of this software is Free, you can free download and free use this image utility software.