| 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 b?>VPuyBb
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2d centered Fourier transform，居中的傅里叶变换 M#T# :wf~
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Kk>DY HZ6y
% Citation for this code and algorithm: /] g>#J%b
% Tatiana Latychevskaia and Hans-Werner Fink S[ ^nSF
% "Practical algorithms for simulation and reconstruction of digital in-line holograms", ?#i|>MRR>
% Appl. Optics 54, 2424 - 2434 (2015) J7Sx !PQ
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% [brkx3h
% The code is written by Tatiana Latychevskaia, 2002 L^x5&CCwk
% The version of Matlab for this code is R2010b Ta^.$O=F
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function [out] = FT2Dc(u0); ;tX Y =
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[Nx, Ny] = size(1i,1j); :^5>wDu{
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f1 = zeros(Nx,Ny); ILNXaJ'0a
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for ii = 1:Nx }9
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for jj = 1:Ny :S#i9# aB
f1(ii,jj) = exp(1i*pi*(ii + jj)); ]y}Zi/zh
end /0-\ek ye
end 03C .Xh=!
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FT = fft2(f1.*in); Zq^^|[)bA
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out = f1.*FT; A^t"MYX@
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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