Digital Image Watermark Algorithm Based on Wavelet Transform and Compound Chaotic System

HE Li-hui; ZHANG Jian-pei; WANG Qiang

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Digital Image Watermark Algorithm Based on Wavelet Transform and Compound Chaotic System

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- Digital Image Watermark Algorithm Based on Wavelet Transform and Compound Chaotic System
- Vol. 15, Issue 3, Pages: 14-18(2010)
- 作者机构：
  
  1. 哈尔滨师范大学文理学院
  2. 哈尔滨工程大学计算机科学与技术学院
  3. 黑龙江省军区装备部
- 作者简介：
- 基金信息：
- DOI：
  CLC： TP391.41
- Published：2010
- 稿件说明：
移动端阅览
HE Li-hui, ZHANG Jian-pei, WANG Qiang. Digital Image Watermark Algorithm Based on Wavelet Transform and Compound Chaotic System[J]. 2010, 15(3): 14-18.
DOI：

HE Li-hui, ZHANG Jian-pei, WANG Qiang. Digital Image Watermark Algorithm Based on Wavelet Transform and Compound Chaotic System[J]. 2010, 15(3): 14-18. DOI：

摘要

提出了一种基于小波变换和复合混沌系统的数字图像水印算法.在水印嵌入过程中

算法首先对原始图像进行离散小波变换

提取其低频部分作为嵌入区域;在对水印进行加密时

不是使用以往单混沌序列

而是采用复合混沌系统产生的混沌序列;再将加密后的水印进行小波变换并提取其低频部分;最后将加密水印的低频部分嵌入到原始图像的低频部分中.通过水印相关系数NC和峰值信噪比PSNR评价水印算法性能.实验结果表明

该算法可以抵抗JPEG压缩、噪声、滤波等攻击

图像水印效果很好.

Abstract

In this paper

a digital image watermark algorithm based on wavelet transform and compound chaotic system is presented.During the embedding of the watermarking

discrete wavelet transform is done firstly and low frequency part is extracted as the embedding field.Secondly

there is a measure to encrypt the watermark by using the compound chaotic sequence

and then we transform the encrypted part and extract the low frequency.Finally

we embed the low frequency part into the original image.This paper mentions a me...

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