title: face detection with augemented reality c++
body: <p>I want to develop an app for windows in which the user's face will be detected with opencv and after the detection I want to display an AR 3d object on a specific area of the detected face. Could you please suggest me a nice tutorial? Or at least explain how augemented reality can "see" this area I want?</p>
  
  <p>Thanks in advance</p>