摘要
介绍了一种基于小波变换的同步盲水印算法,该算法首先将二值水印图像置乱后经过降维操作转换成为一维序列,并用m序列作同步信号与水印序列一起组成嵌入序列,嵌入到音频信号的小波变换域低频系数中。在水印检测时不需要原始音频信号参与。实验表明,该算法具有较好的鲁棒性。
A blind audio watermarking algorithm with synchronization base on DWT（Discrete Wavelet Transform） is introduced. The binary watermarking image is scrambled and converted to a one-dimension sequence, then is added with an m-sequence used as synchronization to compose the sequence embedded into the wavelet coefficients repeatedly. The watermark can be extracted without original data. The experimental results show that algorithm has good robustness.
出处
《电声技术》
2008年第10期52-55,共4页
Audio Engineering
关键词
数字水印
同步
鲁棒性
小波变换
digital watermarking
synchronization
robustness
DWT
