Contact: A'ndrea Elyse Messer
Caption: The fingerprint on the left was prepared using an older development technique and does not show much ridge detail. The image on the right was prepared using new CTF technique and shows a lot of ridge detail. Both images are right and left halves of the same fingerprint.
Credit: Akhlesh Lakhtakia, Penn State
Usage Restrictions: Non commercial use only
Related news release: Computer programs improve fingerprint grading