基于RLS自适应算法的音频数字水印检测技术

Audio Watermark Detecting Based on RLS Adaptive Algorithm

实现了一种基于音频信号掩蔽曲线的水印嵌入方法 ,提出了一种基于RLS(递归最小二乘方 )自适应滤波算法的水印检测算法 ,该算法在检测水印时无需原音频文件 .实验结果表明 ,在不影响听觉效果的前提下 ,这种水印嵌入和检测方法对MPEG压缩、常规滤波、加噪等处理均具有很好的抗攻击性即鲁棒性 .

A watermark embedding system based on audio Perceptual masking and can be detected a watermark detection system based on RLS adaptive algorithm have been realizd in the paper. The watermark from watermarked audio without original audio by using the method. The results indicate that this embedding and detecting method is robust, on the premise of not affecting the hearing quality, and it can resist those attacks such as mpeg compressing, filtering and adding white noise to it.