| 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 X$%[%q8qg
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2d centered Fourier transform，居中的傅里叶变换 @0:Eg 1-
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 5:+x7Ed
% Citation for this code and algorithm: ko!]vHB9`
% Tatiana Latychevskaia and Hans-Werner Fink j~rW
2(
% "Practical algorithms for simulation and reconstruction of digital in-line holograms", oeVI 6-_S
% Appl. Optics 54, 2424 - 2434 (2015) n%2c<@p#
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
B*`[8kb,
% The code is written by Tatiana Latychevskaia, 2002 ,o2x,I
% The version of Matlab for this code is R2010b 9u^za!pE
O~J f" Ht
function [out] = FT2Dc(u0); 1jK2*y
uf )!SxT
[Nx, Ny] = size(1i,1j); Hm 0;[i
A;xH{vo{
f1 = zeros(Nx,Ny); c8l\1 ce?7
nKwOSGPQt
for ii = 1:Nx 9n d,8N ji
for jj = 1:Ny Yg!fEopLb
f1(ii,jj) = exp(1i*pi*(ii + jj)); 'uqY %&U
end 7CU<R9Kl
end 0CeBU(U+|R
m 2%
FT = fft2(f1.*in); tT q2 AR|
9$sx+=(
out = f1.*FT; &)Vuh=
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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