| 基于m序列的多重图像水印 |
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| 引用本文： | 周利军,周源华. 基于m序列的多重图像水印[J]. 上海交通大学学报, 2001, 35(9): 1317-1320 |
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| 作者姓名： | 周利军 周源华 |
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| 作者单位： | 上海交通大学图像通信与信息处理研究所,;上海交通大学图像通信与信息处理研究所, |
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| 摘 要： | 数字图像水印是隐藏在图像中的数字信息,可以起到版权保护和所有权认证作用,多重图像水印就是在一幅图像中嵌入和检出多个不相关水印的技术,利用基于m序列的扩频技术实现了一种数字图像空间域的多重水印算法,根据m序列的伪随机特性和抗干扰性能,使水印具有良好的隐蔽性和稳健性,水印的检测不需要原始图像的参与,可以根据不同的m序列有选择性地恢复不同的水印标记,并且能够抑御强随机噪声以及10％以上JPEG有损压缩的干扰。
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| 关 键 词： | 多重图像水印 扩频技术 m序列 |
| 文章编号： | 1006-2467(2001)09-1317-04 |
| 修稿时间： | 2001-08-21 |
Multiple Image Watermarking Based on m Sequence |
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| ZHOU Li jun,ZHOU Yuan hua,ZHI Cheng. Multiple Image Watermarking Based on m Sequence[J]. Journal of Shanghai Jiaotong University, 2001, 35(9): 1317-1320 |
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| Authors: | ZHOU Li jun ZHOU Yuan hua ZHI Cheng |
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| Abstract: | Digital image watermark is digital information hidden in an image, which can be used for the copyright protection and ownership authentication. Multiple image watermarking is a technology of embedding and detecting multiple irrelevant watermarks in a single digital image. A kind of multiple digital image watermark embedding and detecting algorithm in spatial domain was realized by use of spread spectrum technology based on m sequence. Due to the pseudorandom characteristic and anti jamming capability of m sequences, the embedded watermarks have good property of invisibility and robustness. It is possible to selectively recover the different watermark logo by the corresponding m sequence without the reference of the original image. The algorithm can resist the interference of heavy pseudorandom noises and JEPG lossy compression down to 10% ratio. |
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| Keywords: | multiple image watermarking spread spectrum technology m sequence |
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