关键词: 音频数字水印 独立分量分析 离散小波变换

Abstract:

A method of digital audio watermarking based on independent component analysis is proposed in this paper. When embedding watermarks, the original audio is decomposed by a single-level discrete 1-Dwavelet transform, and watermarks are embedded in the obtained approximation coefficient vector by a metho of random mixing,and an audio file is reconstructed by a reverse wavelet transform. When watermarks are extracted, the audio file is decomposed by a s ingle-level discrete 1-Dwavelet transform, and watermarks are extracted by ICA based on Kurtosis maximization. Emulated experimental results show that t his method is robust and feasible.

Key words: （digital audio watermarking, ICA;discrete wavelet transform）