| 抵抗JPEG的自嵌入内容认证水印方法研究 |
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| 引用本文： | 黄良永,吴建生,肖德贵.抵抗JPEG的自嵌入内容认证水印方法研究[J].小型微型计算机系统,2011,32(9). |
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| 作者姓名： | 黄良永 吴建生 肖德贵 |
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| 作者单位： | 1. 柳州师范高等专科学校数学与计算机科学系,广西柳州,545004
2. 湖南大学计算机与通讯学院,长沙,410082 |
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| 基金项目： | 广西教育厅科研基金项目(200911MS294)资助; 柳州师专科研基金项目(LZSZ2010A004)资助 |
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| 摘 要： | 针对JPEG压缩,提出一种自嵌入的半脆弱内容认证水印方法.采用离散小波分解提取原始图像的稳态特征并映射成水印信息,在密钥控制下生成混沌序列对水印信息进行加密；将水印嵌入到离散余弦变换的量化系数中,最后进行逆量化和逆离散余弦变换变换得到含水印图像.当图像的内容需要认证时,可以区分正常的压缩和恶意篡改,而且还可以进行篡改定位.实验结果表明,该方法对JPEG有损压缩具有较好的鲁棒性、安全性和良好的不可见性.
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| 关 键 词： | 认证水印 JPEG压缩 篡改检测 篡改定位 |
Resistance to Self-JPEG Watermark Embedded in Content Authentication Method |
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| HUANG Liang-yong
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WU Jian-sheng
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XIAO De-gui.Resistance to Self-JPEG Watermark Embedded in Content Authentication Method[J].Mini-micro Systems,2011,32(9). |
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| Authors: | HUANG Liang-yong WU Jian-sheng XIAO De-gui |
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| Affiliation: | HUANG Liang-yong1,WU Jian-sheng1,XIAO De-gui21(Department of Mathematics and Computer Science,Liuzhou Teachers College,Liuzhou 545004,China)2(School of Computer & Communication,Hunan University,Changsha 410082,China) |
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| Abstract: | For JPEG compression,proposed a semi-fragile content from the embedded watermark authentication method.Discrete wavelet decomposition of the steady-state characteristics of the original image extracted and mapped to the watermark,the key is generated chaotic sequence under the control of the watermark is encrypted;the watermark embedded into the DCT coefficient quantization,the last,inverse quantization and inverse discrete cosine Transform transform of the watermarked image.When the image content requires ... |
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| Keywords: | authentication watermark JPEG compression tampering detection tampering location |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
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