title: What is the OpenCV FindChessboardCorners convention?
body: <p>I'm using OpenCV 2.2.</p>
  
  <p>If I use <code>cvFindChessboardCorners</code> to find the corners of a chessboard, in what order are the corners stored in the variable <code>corners</code> (e.g. top-left corner first, then row then column)?</p>
  
  <p><a href="http://docs.opencv.org/modules/calib3d/doc/camera_calibration_and_3d_reconstruction.html#findchessboardcorners" rel="noreferrer">Documentation</a> (which didn't helped much).</p>