摘要
根据小波变换的时频分析特性和多分辨率的分析特性,提出了一种基于小波变换的数字水印嵌入与检测算法.用这种算法嵌入水印有很强的隐蔽性,对原始音频信号的影响基本上察觉不出来.仿真实验证明使用这种算法能够正确地检测出水印的存在,可以抵抗噪声干扰、去噪处理、滤波处理和信号的重采样等.
A digital audio watermarking algorithm is proposed based on multi-resolution decomposition. By using this algorithm, the watermarked audio signal sounds the same as the original one. The digital watermark can be easily detected. Simulation results are given to show the detection of the digital watermarking when the watermarked audio signal is processed or under strong noises.
出处
《新疆大学学报（自然科学版）》
CAS
2005年第2期205-208,共4页
Journal of Xinjiang University(Natural Science Edition)
关键词
音频水印
小波变换
多分辨率
audio watermarking
wavelet transform
multi-resolution
