| 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 "Zq)y_1
|}^ BF%8V:
2d centered Fourier transform，居中的傅里叶变换 >pq= .)X}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% _vgFcE~E@
% Citation for this code and algorithm: } qn@8}
% Tatiana Latychevskaia and Hans-Werner Fink 2P4$^G[
% "Practical algorithms for simulation and reconstruction of digital in-line holograms", 47
* ,
% Appl. Optics 54, 2424 - 2434 (2015) F9 q 9BH
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% NM:\T1
% The code is written by Tatiana Latychevskaia, 2002 [[ ;vZ
% The version of Matlab for this code is R2010b dE0 p>4F
>@wyiBU
function [out] = FT2Dc(u0); v gvJ6$#
$MB /j6 #j
[Nx, Ny] = size(1i,1j); T.kQ] h2ZG
mhZ60 RW
f1 = zeros(Nx,Ny); ! Al?B9KJ
8*t8F\U#
for ii = 1:Nx NT}r6V(Aju
for jj = 1:Ny 7 G <v<&
f1(ii,jj) = exp(1i*pi*(ii + jj));
re;^,
end $ X%'je
end R#0Z
Az"(I>VfD
FT = fft2(f1.*in); qS{E+) P
5$w`m3>i(
out = f1.*FT; +{F2h EYP
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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