I'm trying to install opencv with the non-free features enabled. All the documentation I find says to "build it with cmake with the OPENCV_ENABLE_NONFREE option enabled."
I have no idea what that means. I barely understand cmake at all. I've been following these instructions. They seem pretty clear. However, I don't understand where in the process I'm supposed to enable that option. Is that option set in some configuration file? Is it a command line option? I'm afraid I just don't understand what I'm supposed to do.