function?imgblk1?=?BlkAT（imgblkabn）
%?對圖像方陣imgblk進行Arnold變換，n為置亂次數
%?Code?is?adapted?from?the?web?site:?http://www.cnblogs.com/tiandsp/p/3954550.html

[hw]=size（imgblk）;?blksize=h;?
%?對imgblk置亂，結果放入imgblk1中
imgblk1=zeros（blksizeblksize）;
N=blksize;
for?i=1:n?%?置亂n次
????for?y=1:blksize
????????for?x=1:blksize
????????????xx=mod（（x-1）+b*（y-1）N）+1;
????????????yy=mod（a*（x-1）+（a*b+1）*（y-1）N）+1;
????????????imgblk1（yyxx）=imgblk（yx）;
????????end
????end
????imgblk=imgblk1;
end
end?

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2015-08-07?15:16??Arnold_Transform\
?????文件???????20342??2015-08-07?15:16??Arnold_Transform\293x220.jpg
?????文件?????????538??2015-08-07?15:16??Arnold_Transform\BlkAT.m
?????文件?????????754??2015-08-07?15:16??Arnold_Transform\EqualBlockArnoldTransform.m
?????文件?????????551??2015-08-07?15:16??Arnold_Transform\InverseBlkAT.m
?????文件?????????748??2015-08-07?15:16??Arnold_Transform\InverseEqualBlockArnoldTransform.m
?????文件????????1084??2015-08-07?15:16??Arnold_Transform\InverseMaxBlockArnoldTransform.m
?????文件????????1080??2015-08-07?15:16??Arnold_Transform\MaxBlockArnoldTransform.m
?????文件?????????767??2015-08-07?15:16??Arnold_Transform\Test_of_BlockArnoldTransform.m