Research on the Second Generation Digital Watermarking Algorithm Based on DWT Domain

LAN Hong-xing; CHEN Song-qiao; HU Ai-na; LI Tao-shen

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Research on the Second Generation Digital Watermarking Algorithm Based on DWT Domain

更新时间：2025-07-16

- Research on the Second Generation Digital Watermarking Algorithm Based on DWT Domain
- Acta Electronica Sinica Vol. 35, Issue 9, Pages: 1799-1803(2007)
- 作者机构：
  
  1. 中南大学信息科学与工程学院,湖南,长沙,410083
  2. 广西大学计算机与电子信息学院,广西,南宁,530004
  3. 中南大学信息科学与工程学院湖南长沙,410083
  4. 广西大学计算机与电子信息学院广西南宁,530004
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN319
- Published：2007
- 稿件说明：
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LAN Hong-xing, CHEN Song-qiao, HU Ai-na, et al. Research on the Second Generation Digital Watermarking Algorithm Based on DWT Domain[J]. Acta Electronica Sinica, 2007, 35(9): 1799-1803.
DOI：

LAN Hong-xing, CHEN Song-qiao, HU Ai-na, et al. Research on the Second Generation Digital Watermarking Algorithm Based on DWT Domain[J]. Acta Electronica Sinica, 2007, 35(9): 1799-1803. DOI：

摘要

提出一种基于离散小波变换(DWT)域的第二代水印算法.该算法在CBWM模型基础上

把视觉系统掩蔽特性应用于水印的编码过程

引入了小波块的概念.算法首先从小波变换后的系数中提取出图像的重要特征值作为水印信息

然后通过调制将水印依次嵌入到图像的分解层中

最后该特征值在提取水印时作为位置参考点.实验结果表明

该水印算法对一般的几何攻击具有较强的鲁棒性

对旋转具有独特的抗干扰性.

Abstract

A new second generation watermarking method based on DWT was presented in the paper.Based on the model of CBWM

this algorithm applies the visual masking of HVS to the code of watermark.and introduces concept of wavelet block.At first

the algorithm extracts the most important image characteristic value from the coefficients of wavelet transformation as watermark information.And then

it embeds the watermark to decomposing layer of image by modulating.When extracting watermark

the characteristic value is acted as position reference point of watermark.Experiment results show that the watermarking algorithm is robust against common geometry attacks and special anti-interference resistance to rotation.

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