function?wa=arnold（wwrowkey）
wa=w;
for?k=1:key
????for?x=1:wrow
????????for?y=1:wrow
?????????????x1=x+y;
?????????????y1=x+2*y;
?????????????if?x1>wrow
?????????????????x1=mod（x1wrow）;
?????????????end
?????????????if?y1>wrow
?????????????????y1=mod（y1wrow）;
?????????????end
?????????????if?x1==0
?????????????????x1=wrow;
?????????????end
?????????????if?y1==0
?????????????????y1=wrow;
?????????????end
?????????????wa（x1y1）=w（xy）;
????????end
????end
?????w=wa;
end
????

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2016-10-12?21:37??SVD_DWTAudioMark\
?????文件?????1049654??2009-11-08?14:42??SVD_DWTAudioMark\Markedwave.bmp
?????文件???????81210??2016-10-12?21:39??SVD_DWTAudioMark\Markedwave.wav
?????文件?????????505??2009-03-23?12:19??SVD_DWTAudioMark\arnold.m
?????文件?????????256??2009-11-02?19:54??SVD_DWTAudioMark\check_arnold.m
?????文件???????66614??2009-11-13?15:09??SVD_DWTAudioMark\dwt_watermarked.bmp
?????文件?????????845??2009-11-07?18:59??SVD_DWTAudioMark\extract.m
?????文件???????81209??2009-11-07?09:39??SVD_DWTAudioMark\laile.wav
?????文件??????263222??2009-08-10?20:44??SVD_DWTAudioMark\lena.bmp
?????文件??????497692??2009-11-05?20:28??SVD_DWTAudioMark\lenovo.wav
?????文件?????????223??2009-11-06?20:37??SVD_DWTAudioMark\nc.m
?????文件?????????650??2009-11-04?16:21??SVD_DWTAudioMark\psnr.m
?????文件?????????574??2009-11-05?20:58??SVD_DWTAudioMark\suda64.bmp
?????文件????????2970??2009-11-10?09:54??SVD_DWTAudioMark\svddwt.m
?????文件????????5174??2009-11-13?15:09??SVD_DWTAudioMark\watermark_r.bmp
?????文件??????169644??2009-11-07?09:37??SVD_DWTAudioMark\xiyangyang.wav
?????文件????????5174??2009-11-13?15:49??SVD_DWTAudioMark\zl.bmp