Title: watermark_paper Download
  • Category:
  • matlab
  • Platform:
  • PDF
  • File Size:
  • 175KB
  • Update:
  • 2011-10-30
  • Downloads:
  • 0
  • Uploaded by:
  • videofun
 Description: 首先将二值水印图像经过降维操作转化为一维序列,再将一维序列与m 序列做扩频 调制,最后对音频信号进行分段离散余弦变换,把经过调制的水印信号经过量化处理过程嵌入到离 散余弦变换后的系数中 提取水印时对含水印信号的音频信号也进行分段离散余弦变换,然后利用 原始音频信号提取水印. 实验证明了该技术的鲁棒性和不可感知性.
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一种基于DCT的扩频音频数字水印技术.pdf
    

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