基于BHC编码的DCT域音频水印算法

An Audio Watermarking Algorithm in DCT Domain Based on BCH Code

将BHC编码引入到音频水印系统的研究中,设计了一种包含版权信息和密钥的二值图像作为水印。利用混沌序列,并将其加密后,采用BHC纠错编码,将水印信息嵌入到原始音频信号的DCT域中,此水印方案包含的版权信息量大。对一般信号处理进行了仿真实验,实验表明此方法具有很强的鲁棒性。

A methodology for increasing audio watermark robustness based on BCH encoded is presented. A binary image watermarking encrypted by chaotic and modulated using BCH coding could be embedded in the original signal DCT domain. The watermark contains copyright information and has dual security. The experimental results show that the watermarks are imperceptible and the algorithm is robust.