说明：  基于数字音频水印的dwt变换，程序代码。包含嵌入提取攻击等相关内容，程序稳定可靠便于使用。主要用于对于图像水印的安全保护。
(Digital audio watermarking based on DWT transform, the program code. Contains embedded extraction attacks and other related content, the program is stable and reliable and easy to use. Mainly used for security protection of image watermark.)