I'm trying to build a bot that can detect walls at a distance and turn accordingly. The catch is that the walls are actually orange pylons and not a solid surface. I understand the logic on how to implement a system to detect how far an object is, however I'm not too sure how to start detecting the colour orange at a distance (a meter or two would be sufficient I think...).
Can anyone point me to some hints? I've read the guides on the site and they seem to only cover short distance colour detection.