title: Algorithm suggestions for distinguishing images of human faces
body: <p>I am looking to develop a facial algorithm that would take as input 2 images and calculates if the faces in the 2 images are of the same person or not. I have all the pre-processing of the images working using OpenCV. In the prepossessing steps I crop the face from the entire image, convert it to gray-scale, and resize it to a standard size. My problem is a bit different from facial recognition in the sense that I am not concerned with identifying the individual in the image, I just want to be able to say if they are the same person or not. Most facial recognition algorithms I looked at rely on training from sample faces of the same persons that will comprise the input. In my situation I can train with general faces but not exact faces that will be in the input.  Could you please suggest some methods that could work in my situation?</p>