| 基于提升方案小波的半脆弱水印图像认证算法 |
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| 引用本文： | 王艳辉,王相海.基于提升方案小波的半脆弱水印图像认证算法[J].计算机工程与设计,2007,28(20):4955-4958,4961. |
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| 作者姓名： | 王艳辉 王相海 |
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| 作者单位： | 1. 辽宁师范大学,计算机与信息技术学院,辽宁,大连,116029
2. 辽宁师范大学,计算机与信息技术学院,辽宁,大连,116029;南京大学,计算机软件新技术国家重点实验室,江苏,南京,210093 |
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| 基金项目： | 辽宁省高等学校中青年学科带头人基金
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辽宁省自然科学基金
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辽宁省教育厅科学技术研究基金 |
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| 摘 要： | 在小波变换域内,将水印嵌入在特定的小波系数中,对图像带来的失真影响很小,同时可以准确地检测和篡改定位,因此目前实现认证的脆弱水印和半脆弱水印大多在小波域内.提出了一种使用提升小波变换的半脆弱水印方法.在原始宿主图像经过提升小波变换之后的低频子带,根据水印和小波系数的特征自适应地修改小波系数,嵌入过程实现了很好的不可见性和鲁棒性,实现了盲提取,并能准确地实现篡改的检测和定位.
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| 关 键 词： | 半脆弱水印 提升方案小波变换 自适应 安全性 篡改检测和定位 提升方案小波 半脆弱水印 水印图像 认证算法 wavelet lifting scheme based authentication 检测和定位 盲提取 鲁棒性 可见性 过程实现 修改 自适应 特征 低频子带 宿主图像 方法 提升小波变换 |
| 文章编号： | 1000-7024（2007）20-4955-04 |
| 修稿时间： | 2006-09-23 |
Semi-fragile image watermarking authentication scheme based on lifting scheme wavelet |
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| WANG Yan-hui,WANG Xiang-hai.Semi-fragile image watermarking authentication scheme based on lifting scheme wavelet[J].Computer Engineering and Design,2007,28(20):4955-4958,4961. |
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| Authors: | WANG Yan-hui WANG Xiang-hai |
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| Affiliation: | 1. Department of Computer and Information Technology, Liaoning Normal University, Dalian 116029, China; 2. State Key Laboratory for Novel Software Technology, Nanjing University, Nanjing 210093, China |
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| Abstract: | Fragile watermarking and semi-fragile are the efficient way to solve the image authentication.Since in the wavelet transform embedding watermarking to the specify coefficients of the transformed wavelet will bring less distortions and can locate the tamper area accurately,there are many ways of fragile and semi-fragile watermarking wavelet transform.The proposed scheme is processed in lift-wavelet transform.According to the watermarking and the features of the wavelet coefficients,watermark is adaptively embedded to the low frequency coefficients of the lift-wavelet transform to ensure the invisibility and the robustness of the watermarking.At the same time,in the extract process,original image is not needed,that is blind-extracting,and the tampered area is located accurately. |
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| Keywords: | semi-fragile digital watermark transform based on lifting scheme self-adaptive security tamper detect and location |
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