| 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 M':.b+xN
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2d centered Fourier transform，居中的傅里叶变换 ~At .V+
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 2 U{RA' s
% Citation for this code and algorithm: P`9A?aG.Z
% Tatiana Latychevskaia and Hans-Werner Fink o9\m? ~g!E
% "Practical algorithms for simulation and reconstruction of digital in-line holograms", J vsB^F.4
% Appl. Optics 54, 2424 - 2434 (2015) %~2m$#)
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% &L~rq)r/&
% The code is written by Tatiana Latychevskaia, 2002 BniVZC ct
% The version of Matlab for this code is R2010b C$gLi8| m
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function [out] = FT2Dc(u0); [KJL%u|8/
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[Nx, Ny] = size(1i,1j); ;rL$z;}8
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f1 = zeros(Nx,Ny); q~_jF$9SX
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for ii = 1:Nx oU? X"B9
for jj = 1:Ny QLG,r^
f1(ii,jj) = exp(1i*pi*(ii + jj)); =oDrN7`,B
end -h`0v
end L1i> %5:g
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FT = fft2(f1.*in); V'/%)oU\"
T9?_ `h
out = f1.*FT; V = PoQ9d
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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