摘要
本文的研究以离散小波变换(DWT,Discrete Wavelet Transform)为基础,根据音频信号的特征选取DWT变换域,充分利用小波变换后的低频系数向量,将二值图像的水印信息嵌入至该低频系数向量中,在保证了音频质量的同时,也有效地完成了水印的嵌入与提取,具有较好地鲁棒性。
Through DWT(Discrete Wavelet Transform)technology,this paper makes a study of digital audio watermarking by embedding watermarking information a binary image into low frequency DWT coefficients.The experiments show that the technology brings good balance between imperceptibility and robustness.
作者
赵翠
Zhao Cui(Zhejiang Forth Broadcasting Relay Station,Zhejiang 310000,China)
出处
《广播与电视技术》
2019年第1期108-110,共3页
Radio & TV Broadcast Engineering