| 林深时见鹿 |
2020-05-29 09:44 |
相位恢复算法
有会相位恢复算法的吗？能帮我看看下面的代码错哪儿了吗？不胜感激 akT|Y4KxD
=fl%8" %N&
2d centered Fourier transform，居中的傅里叶变换 [O2h- `
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% &1wpGJqm
% Citation for this code and algorithm: .APVjqG
% Tatiana Latychevskaia and Hans-Werner Fink G0}Dq M Ti
% "Practical algorithms for simulation and reconstruction of digital in-line holograms", cd!|Ne>fe
% Appl. Optics 54, 2424 - 2434 (2015) HZ
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -!c IesK;<
% The code is written by Tatiana Latychevskaia, 2002 '61i2\[lZQ
% The version of Matlab for this code is R2010b k 6@b|
Z>8eD|m%2
function [out] = FT2Dc(u0); F>N+<Z
: NuR>~
[Nx, Ny] = size(1i,1j); 6xHi\L
IAI(Ix
f1 = zeros(Nx,Ny); uPkb, :6~Z
Fn!SGX~kx$
for ii = 1:Nx #vQ ?
for jj = 1:Ny gN?0m4[$i
f1(ii,jj) = exp(1i*pi*(ii + jj)); <Nex8fiJ9
end R4b-M0H
end -Q$b7*"z(
b3\B8:XFo|
FT = fft2(f1.*in); lUv =7"
[
vU!8`x)
out = f1.*FT; %[`a
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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