基于小波能双重自恢复的音频数字水印算法  

Based on DCT Double Since the Restoration of Audio Digital Watermark Algorithm

作　　者：张天星[1] 

机构地区：[1]福建船政交通职业学院,福建福州350007

出　　处：《信息安全与技术》2011年第11期66-68,共3页

摘　　要：本文设计了一种在音频信息中加入双重图像作为数字水印,这些水印经过多种攻击能相互自恢复的算法。此算法实现了将双重图像作为数字水印嵌入到WAV音频载体中的过程,在实现过程中通过对载体进行3层小波分解,将数字水印的信息嵌入到第三层小波解的低频区,即CA3中,并对双重数字水印分别设置密钥,建立起两者间稳定的映射关系,能较好地以完成自恢复的功能。This paper introduces a design of audio information adding double image as the watermark,the watermark through multiple attack each other and self recovery algorithm.This algorithm will double image as digital watermark is embedded into the WAV audio carrier in the process,in the process of realization based on the carrier in 3 layer wavelet decomposition,the digital watermark information is embedded into the third layer wavelet solutions of the low frequency region,namely CA3,and the dual watermarking are respectively arranged between the key,establish the stable mapping relation,can be better to complete the recovery function.

关 键 词：小波变换 数字水印 双重自恢复 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]