title: What does the shape predictor do
body: <p>What exactly does the shape_predictor predict in <a href="http://dlib.net/train_shape_predictor_ex.cpp.html" rel="nofollow">http://dlib.net/train_shape_predictor_ex.cpp.html</a> ? I read it, but i don't understand. I want make a dataset of average landmarks of a Person. Should I take the facelandmark-detection of dlib instead and extract the landmarks and then calc a average landmark by hand?</p>