title: Detect marker with opencv and python
body: <p>I am trying to detect a marker in a webcam video feed and overlay it with a 3d object - pretty much exactly like this: <a href="http://www.morethantechnical.com/2009/06/28/augmented-reality-with-nyartoolkit-opencv-opengl/" rel="nofollow noreferrer">http://www.morethantechnical.com/2009/06/28/augmented-reality-with-nyartoolkit-opencv-opengl/</a></p>
  
  <p>I know artoolkit is the best module for this, but I was hoping to just use opencv in python since I dont know nearly enough c/c++ to be able to use artoolkit. I am hoping someone will be able to get me on the right track towards detecting the marker and determining its location and orientation etc since I have no idea how best to go about this or what functions I should be using.</p>