[求助]相位恢复算法 [复制链接]

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 zx5#eMD  
G*_qqb{B  
2d centered Fourier transform，居中的傅里叶变换 1,P\
dGmu  
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% }U'  
% Citation for this code and algorithm: Y"L|D,ex  
% Tatiana Latychevskaia and Hans-Werner Fink #p ;O3E@  
% "Practical algorithms for simulation and reconstruction of digital in-line holograms", n?U^vK_  
% Appl. Optics 54, 2424 - 2434 (2015) )"Z6Q5k^  
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% $[Q;{Q  
% The code is written by Tatiana Latychevskaia, 2002 &(lQgi+^!  
% The version of Matlab for this code is R2010b >#)%/Ti}DU  
%o5'M^U  
function [out] = FT2Dc(u0); }2Tq[rl~s  
8L+A&^qx  
[Nx, Ny] = size(1i,1j); bp<,Xfl  
1_};!5$.  
f1 = zeros(Nx,Ny); ZZL@UO>:  
Zrp-Hv27,,  
for ii = 1:Nx +#\7 #Y  
    for jj = 1:Ny )|_L?q#w!'  
         f1(ii,jj) = exp(1i*pi*(ii + jj)); 'iTY?  
    end A{e>7Z72  
end I{h KN V  

*nYg-)  
FT = fft2(f1.*in); .9N7`  
zk"8mTg  
out = f1.*FT; RL$%Vy0  
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

求大神指教