I had a bunch of bogus images in my directory and I was going through and manually deleting them. I wised up a little bit and thought I would write a quick script. While it ran, I thought I would share with you.
I had: 25760 images and probably about 15,000 of them were bunk. I could use identify from ImageMagik to get the data which contained the width and height of the image. All the bogus images were a specific height. By writing a script I was able to put them all into a directory, which I could then review for deletion.