title: OpenCV Python - How to implement RANSAC to detect straight lines?
body: <p>I'm trying to detect lines on an image which contains a road. Using gaussian smoothing and Canny edge detection, I reached a wall while trying to implement RANSAC.
  I basically don't know a single step as to how to go about it.
  Can I get a rough idea or a working code with a random image 'foo.png' that implements RANSAC?</p>