摘要
提出了一种基于DCT域和DWT域的音频信息隐藏算法。该算法充分利用了离散小波变换的多分辨率特性和离散余弦变换的能量压缩能力,通过量化的方法把保密语音信息隐藏到原始的载体音频中,在保密语音的提取过程中不需要原始音频信号的参与。仿真试验表明,该算法的鲁棒性和不可感知性比单独采用DCT变换或DWT变换更好。
An algorithm based on DCT and DWT is presented to embed secret audio signal in cartier audio signal by quantification process. It makes full use of the abilities of multi-resolution of DWT and the energy compression of DCT. The algorithm can be extracted without the original audio signal. Experimental results demonstrate the algorithm is more robust and imperceptible than the single approach by DCT or DWT.
出处
《计算机工程与设计》
CSCD
北大核心
2008年第16期4389-4390,F0003,共3页
Computer Engineering and Design
基金
湖南省教育厅资助科研基金项目(07C446)
湖南文理学院硕士科研启动基金项目(JJQD05064)
