% PUMA (Phase Unwrapping via MAxflow) 
%   demo2 - High phase rate Gaussian Hill with a quarter set to zero.

%   The clique potential is given by  V(x)= |Q2p(x)|^0.5 where Q2p is the 
%   quantization function; the employed cliques are
%   given by vectors [0 1] and [1 0].
%   
%   For further details about using PUMA please see puma_ho.m file. See 
%   also: J. Bioucas-Dias and G. Valad鉶, "Phase Unwrapping via Graph Cuts"
%   IEEE Transactions Image Processing, 2007 (to appear).

% Jos