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| 一种基于小波变换的扩频数字图像盲水印算法 | |
| 引用本文： | 刘勍,应隽,曹清华,马小姝.一种基于小波变换的扩频数字图像盲水印算法[J].计算机应用与软件,2009,26(2). |
| 作者姓名： | 刘勍 应隽 曹清华 马小姝 |
| 作者单位： | 1. 天水师范学院物理学与信息科学学院,甘肃,天水,741001;西安电子科技大学电子工程学院,陕西,西安,710071 2. 合肥工业大学计算机学院,安徽,合肥,230009 3. 江苏大学计算机科学与通信工程学院,江苏,镇江,212013 4. 天水师范学院物理学与信息科学学院,甘肃,天水,741001 |
| 基金项目： | 甘肃省教育厅基金，天水师范学院青蓝人才工程基金 |
| 摘 要： | 提出了一种基于小波变换的自适应数字图像水印算法.该算法根据原始图像的特点对水印的嵌入位置及嵌入强度进行自动调节,同时对嵌入的水印信号采用扩频的方法加入水印系统中,增强了图像抗攻击能力,提高了水印安全性.实验结果表明该算法对JPEG压缩、随机噪声攻击、剪切及加噪等具有较高的鲁棒性. |
| 关 键 词： | 数字图像 小波变换 扩频 水印嵌入 水印检测 |
SPREAD SPECTRUM BLIND IMAGE DIGITAL WATERMARKING ALGORITHM BASED ON WAVELET TRANSFORM |
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| Liu Qing,Ying Jun,Cao Qinghua,Ma Xiaoshu.SPREAD SPECTRUM BLIND IMAGE DIGITAL WATERMARKING ALGORITHM BASED ON WAVELET TRANSFORM[J].Computer Applications and Software,2009,26(2). | |
| Authors: | Liu Qing Ying Jun Cao Qinghua Ma Xiaoshu |
| Affiliation: | School of Physics and Information Science;Tianshui Normal University;Tianshui 741001;Gansu;China;School of Electronic Engineering;Xidian University;Xi'an 710071;Shaanxi;China;School of Computer and Information;Hefei University of Technology;Hefei 230009;Anhui;China;School of Computer Science and Telecommunication Engineering;Jiangsu University;Zhenjiang 212013;Jiangsu;China |
| Abstract: | A novel adaptive image digital watermarking algorithm based on wavelet transform is proposed in this paper.The embedded positions and intensities of watermarking can be modulated automatically in the algorithm according to the original image characteristics,and then embedded watermarking signal is added into watermarking systems using the method of spread spectrum,which increases the image anti-attack ability and enhances the watermarking security.Experiment results show that this algorithm has better robus... |
| Keywords: | Digital image Wavelet transform Spread spectrum Watermarking embedding Watermarking detection |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
