基于小波包分解变换的图像数字水印嵌入算法研究  

Research on Inlaid Algorithm of Image Digital Watermarking Based on Wavelet Set Decomposition Transform

作　　者：付炜[1] 邢广忠[1] 侯蓝田[1] 景源[1] 

机构地区：[1]燕山大学通信与电子工程系,河北秦皇岛066004

出　　处：《应用科学学报》2005年第6期658-660,共3页Journal of Applied Sciences

基　　金：河北省自然科学博士基金项目(B2004129)

摘　　要：介绍了一种改进的基于小波包分解的自适应数字水印算法.该算法首先对水印图像作预处理置乱,然后对宿主图像进行3层小波包分解变换.在水印嵌入算法中,提出一种基于人类视觉特性(HVS)和小波包基的自适应水印嵌入算法.该算法引入人类视觉特性和基于小波包基的多分辨率嵌入技术,以达到更好的抗攻击鲁棒特性和视觉效果.This paper presents a kind of improved algorithm of self-adaptive wavelet set decomposition. First, the algorithm pre-processes and makes confusion, then it decomposes the host image into three layers with wavelet set digital watermarking based on the watermarking image into transform. The authors present a kind of inlaid algorithm of self-adaptive digital watermarking based on Human Visual Sense （HVS） Property and Wavelet Set Group （WSG） in watermarking inlaid algorithm of the paper. The algorithm introduces HVS and multi-resolution ratio inlaid technique based on WSG so that better anti-offensive robustness property and visual sense effect are achieved.

关 键 词：图像处理 数字水印 小波包分解变换 版权保护 人类视觉特性 

分 类 号：TP751[自动化与计算机技术—检测技术与自动化装置] TP312[自动化与计算机技术—控制科学与工程]