wolffd@0: function s = chisquared_histo(h1, h2)
wolffd@0: % Measure distance between 2 histograms (small numbers means more similar)
wolffd@0: denom = h1 + h2;
wolffd@0: denom = denom + (denom==0);
wolffd@0: s = sum(((h1 - h2) .^ 2) ./ denom);