| 用于图像篡改定位和恢复的半脆弱水印算法 |
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| 引用本文： | 陈力,戴勤.用于图像篡改定位和恢复的半脆弱水印算法[J].数字社区&智能家居,2009(16). |
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| 作者姓名： | 陈力 戴勤 |
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| 作者单位： | 汕头大学电子系; |
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| 摘 要： | 设计并实现了一种基于分层的半脆弱数字水印算法,用于图像内容完整性认证,篡改定位和恢复。实验结果表明,该算法可以有效地检测篡改区域,对篡改位置精确定位并进行内容恢复,篡改面积小于或等于50%,能够完全恢复被篡改内容。
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| 关 键 词： | 半脆弱水印 篡改定位 篡改恢复 环面自同构映射 矢量量化 |
A Semi-fragile Digital Watermarking Algorithm for Image Tamper Localization and Recovery |
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| CHEN Li,DAI Qin.A Semi-fragile Digital Watermarking Algorithm for Image Tamper Localization and Recovery[J].Digital Community & Smart Home,2009(16). |
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| Authors: | CHEN Li DAI Qin |
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| Affiliation: | CHEN Li,DAI Qin (Electronic Department of Shantou University,Shantou 515063,China) |
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| Abstract: | A hierarchical semi-fragile digital watermarking algorithm was designed for image content integrality authentication,tamper localization and recovery. The experiment results show that the proposed semi-fragile watermarking algorithm had good capability of tamper detection,localization and recovery.It can recovery the tampered image completely when the tamper area is no more than 50%. |
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| Keywords: | semi-fragile watermark tamper localization tamper recovery toral automorphisms vector quantization |
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