| 一种基于JPEG压缩的半脆弱水印算法 |
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| 引用本文： | 陈国峰,王希常,刘江,冯安,王婷.一种基于JPEG压缩的半脆弱水印算法[J].信息技术与信息化,2007,16(1):148-150. |
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| 作者姓名： | 陈国峰 王希常 刘江 冯安 王婷 |
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| 作者单位： | 山东师范大学信息科学与工程学院,济南,250014 |
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| 摘 要： | 本文分析了JPEG压缩中的DCT变换和量化过程，根据量化的特性提出了一种半脆弱水印方案，并将水印信息调制为纠错码嵌入JPEG压缩过程的量化系数中，实验证明，此水印方案鲁棒性较强，虚警率低，能较好的检测图像是否被篡改并对篡改定位。
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| 关 键 词： | 半脆弱水印 纠错码 JPEG压缩 DCT变换 |
| 修稿时间： | 2006年12月22 |
A Semi-fragile Watermarking Algorithm Based on JPEG-Compression |
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| CHEN Guo-feng,WANG Xi-chang,LIU Jiang,FENG An,WANG Ting.A Semi-fragile Watermarking Algorithm Based on JPEG-Compression[J].Information Technology & Informatization,2007,16(1):148-150. |
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| Authors: | CHEN Guo-feng WANG Xi-chang LIU Jiang FENG An WANG Ting |
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| Affiliation: | CHEN Guo-feng WANG Xi-chang LIU Jiang FENG An WANG Ting |
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| Abstract: | In this paper we analysed the DCT transform and quantization procedure, and proposed a semi-fragile watermarking algorithm, and modulated the watermark bits into ECC(error correcting code), then embed it into the DCT coefficiency. Experiment results showed that the method is robust with a low false alarm rate, and can detect whether the image is maliciously manipulated, it can also determine the position that was manipulated. |
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| Keywords: | Semi-Fragile Watermarking ECC JPEG Compression DCT Transform |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
