Well, keep working on your algorithm. Here is a list of successful face recognition papers that have been published: http://www.visionbib.com/bibliography/contentspeople.html#Face%20Recognition,%20Detection,%20Tracking,%20Gesture%20Recognition,%20Fingerprints,%20Biometrics Maybe you can use one of them instead of whatever you attempted.
Brett Shoelson of the Mathworks also has posted some MATLAB code for face recognition: http://www.mathworks.com/matlabcentral/fileexchange/46645-face-recognition-using-aggregated-features
