| 基于跳频技术的图像数字水印算法 |
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| 引用本文： | 张永平,苏广川.基于跳频技术的图像数字水印算法[J].北京理工大学学报,2006,26(2):152-155. |
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| 作者姓名： | 张永平 苏广川 |
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| 作者单位： | 北京理工大学,信息科学技术学院电子工程系,北京,100081;中国人民武装警察部队学院,河北,廊坊,065000;北京理工大学,信息科学技术学院电子工程系,北京,100081 |
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| 摘 要： | 为了有效地解决数字产品版权保护问题,提出一种基于静止图像小波变换域的盲检测数字水印算法. 该算法将数字水印技术与跳频技术相结合,使用密钥控制的跳频图样确定水印的嵌入频带,使嵌入位置在若干不同的频带之间跳变,以增强水印嵌入的随机性和安全性. 实验结果表明,在满足水印透明性的同时,水印信息在噪声干扰、图像处理、图像压缩以及各种人为恶意攻击条件下具有很好的鲁棒性.
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| 关 键 词： | 数字水印 扩谱技术 跳频技术 离散小波变换 |
| 文章编号： | 1001-0645(2006)02-0152-04 |
| 收稿时间： | 04 25 2005 12:00AM |
| 修稿时间： | 2005年4月25日 |
Watermarking Algorithm Based on Frequency Hopping Technique for Image |
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| ZHANG Yong-ping and SU Guang-chuan.Watermarking Algorithm Based on Frequency Hopping Technique for Image[J].Journal of Beijing Institute of Technology(Natural Science Edition),2006,26(2):152-155. |
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| Authors: | ZHANG Yong-ping and SU Guang-chuan |
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| Institution: | 1. Department of Electronic Engineering, School of Information Science and Technology, Beijing Institute of Technology, Beijing 100081, China; 2.Peoples Armed Force Police Academy, Langfang, Hebei 065000, China |
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| Abstract: | To deal with the problem of digital products copyright protection,an effective blind watermarking algorithm based on the wavelet transform and frequency hopping is proposed.By means of the frequency hopping technique,hopping of the embedding positions from band to band according to the secret key will enhance the randomicity and security.Experimental results show that the algorithm has a good robustness against noise,normal image processing,image compression and malicious attacks. |
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| Keywords: | digital watermarking spread spectrum frequency hopping discrete wavelet transform |
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