title: OpenCv C++ Perspective Transform
body: <p>I am trying to use OpenCv to correct an image for distortion and then calculate the real world coordinates given a pixel coordinate. I can not find any examples online or in the OpenCv book of how to do this. </p>
  
  <p>I have done the camera calibration with the chess board image. Now, I just need a basic function that I can give pixel coordinates to that will give me real world coordinates based off of the camera matrix, the distortion coefficients, rotational and translation vectors. </p>
  
  <p>Does anyone know how to do this?</p>