opticsPlotDefocus

Plot the OTF as a function of defocus

   otf = opticsPlotDefocus(Defocus,sampleSf,wave)

 This function is not currently used.  It plots the 1D OTF (for a
 diffraction-limited system) as a function of defocus. Hence, the output
 graph has spatial frequency on one axis and defocus on the other.  The
 height shows the relative amplitude of the transmitted pattern.
 
 The user specifies the spatial frequency range and wavelength. 

 Example:
  Defocus = [-1:.1:1]; sampleSf = [0:64]; wave = 500;
  figure; opticsPlotDefocus(Defocus,sampleSf,wave);

 Copyright ImagEval Consultants, LLC, 2005.