一种基于语音信号的有意义图像多重水印算法

A Meaningful Image of Multiple Watermark Algorithm Base on Speech Signal

利用离散小波变换,提出了一种将有意义数字图像隐藏在音频信号中的高效水印算法.该算法可将多种格式的图像文件隐藏在常规语音信号中,完成图像信息的伪装与隐藏,并可实现不同信息的多重嵌入及提取.实验证明,该算法实现的多重水印具有较好的稳健性和不可觉察性.

This paper presents an efficient watermark algorithnl based on DWT-that can hide meaningful digital images in the audio signal. This algorithm can hide most of image files in conventional speech signals, and complete the camouflage and hiding of image information. The embedment and extraction of different information can be realized. The experimental results show that the multiple watermarks generated with the proposed algorithm are robust and inaudible.