I have code which recognizes the face and eyes draws circles on my live webcam feed accordingly I have been reading the documentation and have realized that the old methods are no longer supported for the facial recognition what I would like to do is use something similar to the Eigenfaces.. I have the Yale database downloaded on my desktop. Essentially I'm just wondering how to do this in 2016 with C++ as the documentation can sometimes be confusing and harder to find for the version 3.1, thanks for your help in advance.