Q:

Landmarks detection using Dlib

I am currently working on a project where I have to extract the facial expression (emotions) from an images.
I'm using Dlib
in the output of face_landmark_detection_ex.cpp, are those the positions of the points compared to all the image or just the face ?
This is the output:

A:

They reference pixels in the image.
i.e. 485 along and 491 down from the 0,0 in the top left corner.
You can check this yourself by drawing them, if I recall the demo does this for you (?)
They're based on the i-bug set:

