I'm hoping this is very simple; I suspect that's the case.
I have an app that takes an image from the user in which they're holding a credit card up, stripe side out. Something like this: http://imgur.com/OOanf9i
This is already being fed through a python script to assist in pupil detection, and I'd like to add the ability to detect the edges of the credit card, width-wise. I've done some research into openCV but it seems like a VERY in-depth topic, and I believe this is a simple case.
Can anyone give me any direction on how to accomplish this? Or just how difficult it might be to do?
Thanks!