摘要
提出了一个基于MP3音频数据的强健数字水印的实现方法。针对音频的特性,利用其三个相邻Section间能量的变化关系,嵌入数字水印而不影响音频的品质,分别承受MP3压缩、低通滤波、标准化处理、D/A转换和信号裁剪的攻击,依然能够保持数字水印的完整性。在对音频数据认证时,该数字水印侦测及取回技术不需原始音频信号,就能将数字水印数据快速取出。同时在数字水印中应用错误更正码和同步码搜寻方法,使得当MP3音乐遭受攻击时,能大大提高水印数据的复原率。
This paper provided an algorithm of digital watermarking in MP3 music. Cooperating the characteristics of audio, the energetic variation for three next sections was used to seek for the new appropriate method. The action of embedding digital watermark will not affect the audio quality. Furthermore, this embedding will not only provides enough robustness to bear several kinds of attacks, including MP3 compression, low-pass filter, normalization, D/A converter, and clipped signal, but also can keep the completeness of digital watermark. '
出处
《计算机应用》
CSCD
北大核心
2003年第12期114-117,共4页
journal of Computer Applications
