how can image encryption by chaos(lorenz)

i write program and some error appear clear all; close all; x(1)=1.45; y(1)=1.55; z(1)=1.23; %x1=0; %y1=22; %z1=0; a=10; b=28; c=8/3; h=0.01 n=10000; for i=2:n x(i)=x(i-1)+h*a*(y(i-1)-x(i-1)); y(i)=y(i-1)+h*(b*x(i-1)-x(i-1)*z(i-1)-y(i-1)); z(i)=z(i-1)+h*(x(i-1)*y(i-1)-c*z(i-1)); x1(i)=10.^14*x(i)-round(10.^14*x(i))+0.2; y1(i)=10.^14*y(i)-round(10.^14*y(i))+0.2; z1(i)=10.^14*z(i)-round(10.^14*z(i))+0.2; % x1(i)=x1(i-1)+h*a*(y1(i-1)-x1(i-1)); %y1(i)=y1(i-1)+h*(b*x1(i-1)-x1(i-1)*z1(i-1)-y(i-1)); %z1(i)=z1(i-1)+h*(x1(i-1)*y1(i-1)-c*z1(i-1)); end % plot3(x,y,z); figure subplot(3,1,1); %plot(x1); subplot(3,1,2); %plot(y1); subplot(3,1,3); %plot(z1); figure; subplot(3,1,1); r=xcorr(x); %plot(r); subplot(3,1,2); e=xcorr(y); %plot(e); subplot(3,1,3); f=xcorr(z); %plot(f); figure; b=imread('cameraman.tif'); %imshow(b); [n m]=size(b); sort(x); [d1,ind1]=sort(x,n); ind1; sort(y); [d2,ind2]=sort(y,n); ind2; for h=1:n b1=b(ind1(h),:);

    for j=1:m
        b1=b(:,ind2(j));
    end
end
imwrite(b1,'cameraman.tif','tif')

the error in imwrite can i use another code to appear image after permutation

[Walter Roberson]

http://www.mathworks.com/matlabcentral/answers/13205-tutorial-how-to-format-your-question-with-markup

Answer 1

[Image Analyst]

I'm not sure what you're asking. Yes, you can "appear" (display, show) images after anything with the imshow(), image(), or imagesc() functions. Did that answer your question?

[jinan eng]

no becuse i need save new image then after save display i need code to save change and then display

[Image Analyst]

What's the class of b1? Is it uint8? Try issuing this command on the command line

whos b1

What does it say? If you have some kind of non-integer image, you may have to use the TIFF class to write it out instead of imwrite().