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| 一种新的基于图象内容的半易损水印技术 | |
| 引用本文： | 易开祥,孙鑫,王道顺,石教英. 一种新的基于图象内容的半易损水印技术[J]. 系统仿真学报, 2002, 14(9): 1200-1203,1207 |
| 作者姓名： | 易开祥 孙鑫 王道顺 石教英 |
| 作者单位： | 1. 华为技术公司上海研究所,上海,200072;浙江大学CAD&CG国家重点实验室,杭州,310027 2. 上海大学机电工程与自动化学院49信箱,上海,200072 3. 清华大学计算机系,北京,100080 4. 浙江大学CAD&CG国家重点实验室,杭州,310027 |
| 基金项目： | 国家自然科学基金资助(60033010)。 |
| 摘 要： | 让原始图象进行1－层小波正变换，让后将其变换后的小波近似系数用混沌序列进行调制从而生成基于图象内容的水印信号；利用原始图象的HVS特性将水印信号嵌入到原始图象的小波域中；检测器能够从接收到的水印图象中提取出原始水印信号，并依据接收到的水印图象生成新的水印信号，从而定位出受到攻击的图象位置，并能区分受到攻击的类型。实验结果表明，该算法具有好的鲁棒性和识别被篡改的区域能力。 |
| 关 键 词： | 图象内容 半易损水印技术 著作权 混沌序列 人类视觉系统 离散小波变换 版权保护 图象识别 |
| 文章编号： | 1004-731X(2002)09-1200-04 |
New Content-Based Semi-Fragile Watermarking |
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| YI Kai-xiang ,,SUN Xin ,WANG Dao-shun,SHI Jiao-ying. New Content-Based Semi-Fragile Watermarking[J]. Journal of System Simulation, 2002, 14(9): 1200-1203,1207 | |
| Authors: | YI Kai-xiang SUN Xin WANG Dao-shun SHI Jiao-ying |
| Affiliation: | YI Kai-xiang 1,4,SUN Xin 2,WANG Dao-shun3,SHI Jiao-ying 4 |
| Abstract: | In this paper we propose a semi-fragile watermarking scheme, which can be used for image authentication. Let the original image be performed by the l-level discrete wavelet transformation. Then the approximate wavelet coefficient matrix of the original image and the chaotic sequences are used to generate the content-based and secure watermark. The watermark is embedded into original image by using the technique of HVS. The tamper detector can identify the tampered region from the received watermarked image which may be undergone tamper attacked. Experimental results are excellent. |
| Keywords: | fragile watermark authentication chaotic sequences human visual system (HVS) DWT |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |