%  We find the peak values of the convolution or correlation
%  between two matrices in order to find the center of the foot
%  prints.
function [P] = peaks(M, self)
    %  We find the coordinates of the values that are within
    %  fifteen percent of the maximum correlation value.
    [peakr, peakc] = find(M>(.85*self));
    P = [peakr'; peakc'];
  