tent map for image scrambling

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Surya R
Surya R 2019-5-13
clc;clear;close all;
N=200;
xp=zeros(1,N);
Aa=ones(1,N);
hold on;box on;
x=0.34;
for a=0:.001:1;
for n=1:N;
x=a-(1+a)*abs(x);
end
for k=1:N;
x=a-(a+1)*abs(x);
xp(k)=x;
end
plot(Aa*a,xp,'k.','markersize',1);
end
xlim([0,a]);
xlabel('\ita','Fontsize',22,'Fontname','Times new roman');
set(gcf,'Color','w');
how to use this code for image scrambling ????please help me...

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