计算机应用与软件2011，Vol.28Issue(5)：288-291,4.
基于小波系数能量比的音频数字水印算法
AUDIO DIGITAL WATERMARKING ALGORITHM BASED ON ENERGY RATIO OF WAVELET COEFFICIENT
王景中 1徐天岭 1袁开国2
作者信息
- 1. 北方工业大学信息工程学院,北京,100144
- 2. 北京邮电大学信息安全中心网络与交换重点实验室,北京,100876
- 折叠
摘要
Abstract
In order to solve digital audio files' copyright protection issue in network, an audio digital watermarking algorithm based on wavelet coefficients energy ratio is proposed. Through the statistics, two adjacent wavelet coefficients energy ratio in every audio section is partitioned into two regions,and the probability of the energy ratio falling in each region is made of 1/2,one region is used to embed bit '0' while the other is used to embed bit '1 '. It's proved by the experiments that the transparency and the robustness of the algorithm is satisfied even in the circumstances of low embedding strength;moreover, the identifiable watermark is still able to be extracted when attacked by re-sampling,re-quantising and random shear attack to a certain extent.关键词
音频水印/小波分解/小波近似系数能量比/抗攻击分析Key words
Audio watermarking/ Wavelet decomposition / Energy ratio of wavelet approximation coefficients / Anti-attack analysis引用本文复制引用
王景中,徐天岭,袁开国..基于小波系数能量比的音频数字水印算法[J].计算机应用与软件,2011,28(5):288-291,4.
