Filter noise and interpolate microscopy images in frequency domain
07 Feb 2013
(Updated 01 Mar 2013)
Remove spatial frequencies beyond the optical cutoff and perform physically accurate interpolation.
% y=jinc(r) returns the jinc function [J1(2*pi*r)/(2*pi*r)] evaluated
% at r. Per this definition, the first zero of jinc function is at 0.61.
%Imaginary parts due to numerical error are of order 1E-16.
%Division by zero leads to NaN.