| 一种HVS和Contourlet结合的图像水印算法 |
| |
| 引用本文： | 陈开亮,王建军.一种HVS和Contourlet结合的图像水印算法[J].计算机辅助设计与图形学学报,2007,19(6):811-816. |
| |
| 作者姓名： | 陈开亮 王建军 |
| |
| 作者单位： | 复旦大学电子工程系,上海,200433 |
| |
| 摘 要： | 提出了一种Contourlet域的图像水印算法.首先对图像进行多层分解;然后利用视觉系统的亮度纹理特性,把伪随机序列组成的水印信号自适应地嵌入到能量最大的子带中;最后经过逆变换得到嵌入水印后的图像.该算法解决了直接嵌入边缘扭曲的问题,检测端使用基于相关的盲检测.实验结果表明,该算法能够在满足不可见性的条件下抵抗JPEG压缩、加噪和剪裁等攻击,具有很强的鲁棒性.
|
| 关 键 词： | Contourlet域 人类视觉系统 自适应 不可见性 Contourlet 结合 图像水印算法 Combined Algorithm 鲁棒性 剪裁 加噪 压缩 JPEG 抵抗 条件 可见性 结果 实验 盲检测 相关 使用 问题 边缘 |
| 收稿时间： | 2006-09-09 |
| 修稿时间： | 2006-09-092006-11-03 |
A Contourlet-Based Image Watermarking Algorithm Combined with HVS |
| |
| Chen Kailiang,Wang Jianjun.A Contourlet-Based Image Watermarking Algorithm Combined with HVS[J].Journal of Computer-Aided Design & Computer Graphics,2007,19(6):811-816. |
| |
| Authors: | Chen Kailiang Wang Jianjun |
| |
| Affiliation: | Department of Electronics Engineering, Fudan University, Shanghai 200433 |
| |
| Abstract: | A watermarking algorithm in contourlet domain is proposed. Firstly, the image is decomposed into several subbands. Secondly, according to the luminance and texture characteristics of the HVS, the watermark composed of a pseudorandom sequence is adaptively embedded into the subband with the largest energy. Finally, the inverse transform is performed to obtain the watermarked image. The blind detection is used, and the algorithm can achieve a good imperceptibility. Experimental results show that the algorithm has good robustness against attacks such as JPEG, noise and crop. |
| |
| Keywords: | Contourlet domain human visual system(HVS) adaptively imperceptibility |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
