程序
....\ArnoldN.m
....\book.asv
....\book.m
....\dft2_watermarked.bmp
....\embedded2.bmp
....\ExWatermarked.bmp
....\IArnoldN.m
....\Lena.jpg
....\加噪去噪.txt
....\名字.bmp
....\盾牌.jpg