% 
% Written by:
% -- 
% John L. Weatherwax                2005-08-04
% 
% email: wax@alum.mit.edu
% 
% Please send comments and especially bug reports to the
% above email address.
% 
% Epage 
% 
%-----

I = [ 0, 0, 2, 2; 1, 1, 0, 0; 3, 2, 3, 3; 3, 2, 2, 2 ];

% duplicate the results in the book:
phi=0;
Q = Q_RL(I,phi)

% duplicate the results in the book:
phi=45;
Q = Q_RL(I,phi)

phi=90;
Q = Q_RL(I,phi)

phi=135;
Q = Q_RL(I,phi)