title: dlib image conversion to opencv
body: <p>I just tested the <a href="http://dlib.net/face_landmark_detection_ex.cpp.html" rel="nofollow">http://dlib.net/face_landmark_detection_ex.cpp.html</a> example.</p>
  
  <p>The Question is now: Is there a proper way to covert the image type of tile_images(face_chips) to a Mat object?</p>
  
  <p>Thanks in advance
  Alex</p>