南京理工大学学报（自然科学版）2012，Vol.36Issue(3)：386-389,4.
基于小波和余弦变换组合的音频零水印算法
Audio Zero-watermarking Scheme in DCT-DWT
摘要
Abstract
In order to improve the imperceptibility of traditional watermarking scheme,a novel audio zero-watermarking scheme based on discrete cosine transform and discrete wavelet transform ( DCT-DWT) is proposed. The audio is split into equal frames. Approximate components are extracted using the DWT for each frame. Mean values of the approximate components are obtained using the DCT. Watermark is embedded according to the relationship between two adjacent mean values. Simulation and experimental results show that the algorithm has strong robustness against common audio signal processing attacks such as MP3 compression, re-quantization, re-sampling,low-pass filter and noise reduction and high efficiency.关键词
音频/零水印/离散小波变换/离散余弦变换/鲁棒性Key words
audio/ zero-watermarking/ discrete wavelet transform/ discrete cosine transform/ robustness分类
信息技术与安全科学引用本文复制引用
杨榆,雷敏,郭玉翠,罗群..基于小波和余弦变换组合的音频零水印算法[J].南京理工大学学报（自然科学版）,2012,36(3):386-389,4.基金项目
国家自然科学基金(60973146 （）
61170269 （）
61003285 （）
61170272) （）
