phase and amplitude values changes when doing reverse in encryption

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aaru sri
aaru sri 2018-11-18
编辑： aaru sri 2018-11-18
d1=bb1.*exp(1i*2*pi*bbbb);
d12=abs(d1);
d13=angle(d1);
d16=d13./(2*pi);
d2=d1.*m2; %%%m1 and m2 is mask
d3=ifft(d2);
bb2=abs(d3);
kk2=angle(d3);
kkr=en1(:,:,1); %kk1
kkb=en1(:,:,2); %kk2
bbg=en1(:,:,3); %bb2
m11=exp(-2*pi*q1); %%%reverse of m1 m2
m22=exp(-2*pi*q2);
re = bbg.* cos(kkb);
im = bbg.*sin(kkb);
xyz = re + 1i*im;
%xyz = bbg.*exp(i*kkb);
fi = fft(xyz); %fft
di=fi.*m22;
bi=abs(di); %value of d12
bii=angle(di); %value of d13
bii1=bii./(2.*pi); %%in this small chane in phase is coming when compared to d16
positive phase in fwd bcmes negative in rev with only few elements ....r chnged

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