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个人信息Personal Information
教授
博士生导师
硕士生导师
主要任职：Director of Academic Committee at Kaifa District
其他任职：开发区校区学术分委员会主任（Director of Academic Committee at Kaifa Campus）
性别：男
毕业院校：多伦多大学
学位：博士
所在单位：软件学院、国际信息与软件学院
学科：软件工程. 运筹学与控制论
办公地点：开发区（Kaifa District Campus）
联系方式：mingchul@dlut.edu.cn
电子邮箱：mingchul@dlut.edu.cn
A quadratic-residue-based fragile watermarking scheme
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论文类型：会议论文
发表时间：2009-08-08
收录刊物：EI、CPCI-S、Scopus
卷号：1
页面范围：512-+
关键字：image authentication; quadratic residue; vector quantization attack
摘要：A new fragile watermarking scheme for image authentication and location of areas that have been tampered with is proposed in this paper. Based on a quadratic-residue theorem, the proposed scheme generates the watermark block-by-block in the cover image. To improve security by preventing malicious attacks, such as the vector quantization attack, a pseudo-random number generator using a private key as a seed is applied in the embedding process. The experimental results show that our proposed scheme is effective in image authentication and maintains high image quality in the watermarked images. In addition, areas that have been tampered with can be located and at least approximately recovered.