I was out recording lightning with a camera on a tripod and got 4 hours of footage that I converted all the videos to jpg's. (that was a free tool). Is there any way of going through the jpg's as a lot of them look the same. As the jpg's were created a frame per second. So I have 400 000 images to go through. Any program that could probably speed this up by understanding the slight differences, say, in the flash of the lightning, or the strike of lightning, instead of me going through the thousands of pictures.