function
f = self(a)
%
% SELF
% f = self(a)
% returns as f the self-convolution of image a.
f = fft2(a);
f = f.*f;
f = ifft2(f);
f = fftshift(f);
f = real(f);
f = f/max(max(f));
Maintained by
John Loomis
, last updated
8 March 2000