/usr/share/psychtoolbox-3/PsychOptics/WilliamsMTF.m is in psychtoolbox-3-common 3.0.9+svn2579.dfsg1-1.
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1 2 3 4 5 6 7 8 9 10 11 12 | function mtf = WilliamsMTF(s)
% mtf = WilliamsMTF(s)
%
% Compute the MTF measured by Williams et. al.
% for 633 nm light.
%
% 7/11/94 dhb Wrote it.
% 7/14/94 dhb Pulled calculation of rest into separate function.
diff = DiffractionMTF(s,3,633);
rest = WilliamsRestMTF(s);
mtf = diff .* rest;
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