So I'm working on a tool that will ( hopefully) allow level designers to work out and test levels quickly by using pen and paper to try out layouts, and then the software to convert it into useable data.
Progress so far:
This is the test sketch I'm using
This is the best output so far (skeletonised 1px lines, dilated here for better visibility)
I'm progressively posting progress in this Imgur album
I'm learning a lot about OpenCV as I move along here, so don't expect great strides, a lot of this is one step forward and two steps back, but if I can reliably get sketches appearing as level geometry in Unity, I will be super-chuffed