数字水印的LSB 数字水印算法，可以对图像进行加密，也可以解密-LSB watermarking digital watermarking algorithm can encrypt the image, you can decrypt

用matlab实现了zigzag算法，实现功能：对任意维数的图片都都能进行加密和解密-Using matlab to achieve a zigzag algorithm functions: For any dimension pictures are able to encrypt and decrypt

本文件实现的是对水印的加密及解密，有3种方式，猫脸变换，混沌置乱和zigzag置乱。-The file contains sseveral functions, which can encrypt and decrypt the watermark,including Arnold Transform,chaotic and zigzag.