| A Scheme of Fragile Watermarking Based on SVD and 2D Chaotic Mapping |
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| 作者姓名： | 刘粉林 高山青 葛辛 |
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| 作者单位： | Information Eng. Inst. Information Eng. Univ. Zhengzhou 450002 China，Information Eng. Inst. Information Eng. Univ. Zhengzhou 450002 China，Information Eng. Inst. Information Eng. Univ. Zhengzhou 450002 China |
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| 基金项目： | NationalNaturalScienceFoundationofChina(No.60374004),HenanScienceFundforDistinguishedYoungScholar(No.0412000200),HAIPURI(No.2001KYCX008)andtheScience-TechnologyProjectofHenanProvinceofChina |
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| 摘 要： | Introduction TheInternetandtheadvancementofdigital technologieshaveenablednumerousapplicationsin theareasofmultimediacommunicationsandmulti-medianetworking.Atypicalcharacteristicofdigi-talproductsisthattheyareeasytomanipulate,i.e.tostore,duplicate,transmitormodify.Thus,theauthenticationandthecopyrightprotec-tionfromunauthorizedmanipulationofdigitalau-dio,image,andvideodatabecomeanessential concerninthedigitalmultimediaera1].Digitalwa-termarkinghasattractedconsiderableattentionand seennumerou…
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| 关 键 词： | 水位标记 测绘方法 分解 水印 |
| 文章编号： | 1007-1172（2006）02-0146-06 |
| 收稿时间： | 2005-10-10 |
A Scheme of Fragile Watermarking Based on SVD and 2D Chaotic Mapping |
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| LIU Fen-lin,GAO Shan-qing,GE Xin.A Scheme of Fragile Watermarking Based on SVD and 2D Chaotic Mapping[J].Journal of Shanghai Jiaotong university,2006,11(2):146-151. |
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| Authors: | LIU Fen-lin GAO Shan-qing GE Xin |
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| Abstract: | This paper proposed a novel fragile watermarking scheme based on singular value decomposition (SVD)and 2D chaotic mapping. It obtains chaotic initial values from the image blocks singular value decomposition and the user's key, then uses the chaotic mapping to get the chaotic sequence and inserts the sequence into the LSBs of the image blocks to get the watermarked image blocks. The paper reconstructed the watermarked image from all the embedded blocks. The analysis and experimental results show that the scheme is pretty fragile to tampering,and it can localize the tampering position accurately, reach 3 × 3 blocks. |
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| Keywords: | fragile watermarking singular value decomposition(SVD) chaotic mapping tampering localization |
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