| 基于JPEG压缩不变量和半脆弱水印的图像认证 |
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| 引用本文： | 张鸿宾,杨成.基于JPEG压缩不变量和半脆弱水印的图像认证[J].北京工业大学学报,2004,30(2):214-218. |
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| 作者姓名： | 张鸿宾 杨成 |
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| 作者单位： | 北京工业大学,计算机学院,北京,100022;北京工业大学,计算机学院,北京,100022 |
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| 基金项目： | 国家自然科学基金，国家高技术研究发展计划(863计划) |
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| 摘 要： | 为了检测和定位对图像的恶意窜改,同时验证图像的所有权,提出了一种基于JPEG压缩不变量和半脆弱水印的JPEG压缩域认证水印算法.该算法利用了JPEG压缩前后DCT系数的不变性嵌人和图像内容有关的水印.该认证算法建立在密码学方法的基础上,因此它是单向的、不可逆的.
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| 关 键 词： | 图像认证 数字水印 JPEG压缩 数字签名 |
| 文章编号： | 0254-0037(2004)02-0214-05 |
| 修稿时间： | 2004年1月8日 |
Image Authentication Scheme Based on JPEG Invariant and Semi-fragile Watermarking |
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| ZHANG Hong-bin,YANG Cheng.Image Authentication Scheme Based on JPEG Invariant and Semi-fragile Watermarking[J].Journal of Beijing Polytechnic University,2004,30(2):214-218. |
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| Authors: | ZHANG Hong-bin YANG Cheng |
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| Abstract: | The authors propose an authentication scheme for JPEG images based on digital signature and semi-fragile watermarking to detect and locate the malicious manipulations made to an image and verify the ownership of the image. The algorithm uses the invariant of DCT coefficients before and after JPEG compression to embed the watermark related with the image in content. Since the authentication scheme is based on the security of the cryptographic hash function and public key algorithm, it is monodirectional and irreversible. The theoretical analysis and experimental results show that the proposed scheme has the desired property and good performance for image authentication. |
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| Keywords: | image authentication digital watermarking JPEG compression digital signature |
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