Rather than providing a command-line tool that processes image files in an offline manner, we combined all the preceding steps into a self-contained real time GUI program to allow immediate use of the face recognition system. You should be able to modify the behavior of the system for your own purposes, such as to allow an automatic login of your computer, or if you are interested in improving the recognition reliability then you can read conference papers about recent advances in face recognition to potentially improve each step of the program until it is
reliable enough for your specific needs. For example, you could improve the face preprocessing stages, or use a more advanced machine-learning algorithm, or an even better face verification algorithm, based on methods at http://www.face-rec.org/algorithms/ and http://www.cvpapers.com.