混沌系统图像加密解密理论部分参考连接:
基于混沌系统的图像加密算法设计与应用git
%加密程序 function b=jiami(a,s,h) [m1,n1]=size(a(:,:,1)); x=zeros(1,m1+n1); y=[1:m1+n1]; %而后, 用Logitic 映射产生混沌序列: for n=1:m1+n1-1 x(1)=s; q=h; x(n+1)=q*x(n)*(1- x(n)); end %排序行置乱 for f=1:m1-1 for h=f:m1 if x(f)>x(h) k=x(f); x(f)=x(h); x(h)=k; m=y(f); y(f)=y(h); y(h)=m; c1=a(f,:,:); a(f,:,:)=a(h,:,:); a(h,:,:)=c1; end end end function b=jiemi(a,s,h) [m1,n1]=size(a(:,:,1)); x=zeros(1,m1+n1); y=[1:m1+n1]; %而后, 用Logitic 映射产生混沌序列: for n=1:m1+n1-1 x(1)=s; q=h; x(n+1)=q*x(n)*(1- x(n)); end %行置乱 for f=1:m1-1 for h=f:m1 if x(f)>x(h) k=x(f); x(f)=x(h); x(h)=k; m=y(f); y(f)=y(h); y(h)=m; end end end %列置乱 for f=m1+1:m1+n1-1 for h=f:m1+n1 if x(f)>x(h) k=x(f); x(f)=x(h); x(h)=k; m=y(f); y(f)=y(h); y(h)=m; end end end %行解密 for f=1:m1-1 for h=f:m1 if y(f)>y(h) m=y(f); y(f)=y(h); y(h)=m; c1=a(f,:,:); a(f,:,:)=a(h,:,:); a(h,:,:)=c1; end end end
1 matlab版本
2014a算法
2 参考文献
[1] 蔡利梅.MATLAB图像处理——理论、算法与实例分析[M].清华大学出版社,2020.
[2]杨丹,赵海滨,龙哲.MATLAB图像处理实例详解[M].清华大学出版社,2013.
[3]周品.MATLAB图像处理与图形用户界面设计[M].清华大学出版社,2013.
[4]刘成龙.精通MATLAB图像处理[M].清华大学出版社,2015.markdown