After extracting the PSF with the Huygens tecnuìique, hoe can one extract its radius and the standard deviation of a gaussian fit superimposed to it?
What I would like to do is take the PSF of my imaging system (which includes a black box lens) and evaluate the radius of the PSF as a function of defocus.
Also I would like to simulate the PSF generated by a homogeneously illuminated pinhole. How would one do that?
+3The radius can be obtained using the encircled energy plot and operands. If the PSF is Gaussian, you can of course just read the 1/e^2 point directly. If you need to fit the PSF to a Gaussian, you'd need to do that in your own code in say MatLab or Python via ZOS-API.
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