| 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 kdGT{2u
} 9nDo*A"}
2d centered Fourier transform，居中的傅里叶变换 N},n `Yl.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% $-[CG7VgX%
% Citation for this code and algorithm: /x3/Ubmz~x
% Tatiana Latychevskaia and Hans-Werner Fink qJ0fQI\
% "Practical algorithms for simulation and reconstruction of digital in-line holograms", A *W) bZs.
% Appl. Optics 54, 2424 - 2434 (2015) KK@.~ 'd
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% \U@rg4
% The code is written by Tatiana Latychevskaia, 2002 fS^!Z Pe1
% The version of Matlab for this code is R2010b Nj(" |`9"
IIq1\khh
function [out] = FT2Dc(u0); 'M3">$N
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[Nx, Ny] = size(1i,1j); )V!d Bl"Gq
L~ s3b
f1 = zeros(Nx,Ny); pmX#E
WJ*n29^N^h
for ii = 1:Nx 6~*9;!t h
for jj = 1:Ny *Vho?P6y\Y
f1(ii,jj) = exp(1i*pi*(ii + jj)); PTj&3`v
end [Y`,qB<B
end
>0l"P"]
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FT = fft2(f1.*in); I$8" N]/C
L \;6y*K
out = f1.*FT; _'#x^D
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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