title: Dlib facial landmark starting index
body: <p>I'm using dlib to get facial landmark points , my question is about the </p>
  
  <p>indexing , the reference figure of 68 landmark is starts from (1) , </p>
  
  <p>is dlib code <a href="https://github.com/davisking/dlib/blob/master/examples/face_landmark_detection_ex.cpp" rel="nofollow noreferrer">Dlib facial landmarks </a>starts from (0) ? so if I wanted to output left eye landmarks</p>
  
  <p>using dlib should I start from <strong>(37)</strong> as the reference figure or <strong>(38)</strong> ?</p>
  
  <p><a href="https://i.stack.imgur.com/05uIT.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/05uIT.jpg" alt="enter image description here"></a></p>