一種基于小波域的盲檢測音頻水印算法

該文提出了一種基于離散小波變換的數字音頻水印盲檢算法。本算法選擇在小波系
數的偶數點嵌入水印，將混沌理論引入到音頻水印系統(tǒng)的研究中，利用混沌序列將一幅有意義的二值圖像加密后嵌入到原始音頻的DWT 域中，提取時不需要原始音頻信號。仿真實驗證明了算法的魯棒性和不可感知性。
關鍵詞:音頻水??；混沌；離散小波變換；盲檢測
Abstract: This article proposed a blind digital audio watermarking algorithm based on the DWT. The algorithm chose the even number of wavelet coefficient to embed watermark ,and introduced the Chaotic theory into the research of the audio watermarking system, the chaotic sequence encrypted a meaningful binary image could be embed into the original audio signal wavelet domain, the watermark can be extracted without the original audio signal. Experimental results demonstrate the algorithm is robust and imperceptible.
Key words: Audio marking；Chaotic；DWT；Blind detection