dygerati's profile - activity

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!

Thanks for the response - the distance between the pupils. The main method of measuring the distance that I've seen is to have the user hold up a credit card under their nose with the strip visible. That's a standard size that you can then use to compute the PD (pupillary distance).

I was afraid that the wrapper would be too undeveloped. Do you think it's not up to the task? It's a little difficult for me to tell since I'm not yet sure how best to do the detection I need.

I'm embarking on a project that involves creating a online tool to measure the pupillary distance of a person via a webcam/camera still photo. The tricky part has to do with automatic detection of the pupils in the photo. I have little/no experience with image processing of this kind, but I've been doing some research.

So far I'm considering using openCV through node.js using this available library: https://github.com/peterbraden/node-opencv .

Am I at all on the right track? The capabilities of this library seem limited compared to more developed ones for C++/java/python/etc, but the timeline for this project doesn't allow for my learning a new language in the process.

Just wanted to reach out to anyone with more experience with this kind of thing, and any tips/etc are more than welcome. Thanks!