• 中国计算机学会会刊
  • 中国科技核心期刊
  • 中文核心期刊

J4 ›› 2005, Vol. 27 ›› Issue (8): 44-46.

• 论文 • 上一篇    下一篇

一种NVF量化的小波域图像水印算法及实现

袁志勇[1,2] 肖畅[2] 陈绵云[1]   

  • 出版日期:2005-08-01 发布日期:2010-07-03

  • Online:2005-08-01 Published:2010-07-03

摘要:

本文提出了一种基于噪声可见函数(NVF)量化的水印算法。该算法用噪声可见函数NVF最大化水印能量,在嵌入时使用多重嵌入技术,增加了水印的不可见性和鲁棒性,水印 在提取和检测时不需要原图信息。

关键词: 噪声可见函数 量化 图像水印 小波

Abstract:

In this paper, we propose a digital image watermarking algorithm using the noise visibility function(NVF) based on wavelet quantization. The waterma  rk is multi-embedded with an adaptive watermark strength according to the computation of the noise visibility function , which improves the invisibilityand robustness of the watermarking algorithm.The original image information is not needed in the extraction and detection of watermarks

Key words: (NVF quantization image watermarking wavelet)