Subtraction Technique - Forensic Imaging

[dwarrington]

Hi all, thanks for all the information. I've tried the align script and it does the job nicely. Since it is typically the tripod that is bumped and being on a flat surface the perspective of the image in not usually changed, just the location of the footwear pattern in the image.
Still playing around with the various manipulation modes but the results I am getting are the same if not better than what Photoshop was producing.
Thanks heaps