%% Face recognition
% This algorithm uses the eigenface system (based on pricipal component
% analysis - PCA) to recognize faces. For more information on this method
% refer to http://cnx.org/content/m12531/latest/
%% Download the face database
% You can find the database at the follwoing link,
% http://www.cl.cam.ac.uk/research/dtg/attarchive/facedatabase.html The
% database contains 400 pictures of 40 subjects. Download the zipped
% database and unzip it in the same directory as