Our robot has a little Intel NUC on it running Arch Linux, in which we run OpenCV code that gets images from our cameras, figures out angles, distance, etc, and sends it to the cRIO. We write it ourselves in C++. You can look at the source code
here. I'm looking to port this C sometime. It's not the fastest thing on the planet... I also want to clean this up later. It's ultra messy as we kind of write our code in a hurry all the time
Alex Brinister