| 基于掺铒光纤激光器混沌系统的彩色图像水印方法 |
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| 引用本文： | 郑骁鹏,田小建,单江东.基于掺铒光纤激光器混沌系统的彩色图像水印方法[J].吉林大学学报(理学版),2010,48(2):307-312. |
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| 作者姓名： | 郑骁鹏 田小建 单江东 |
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| 作者单位： | 吉林大学 电子科学与工程学院, 长春 130012 |
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| 基金项目： | 国家自然科学基金(批准号:60372061) |
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| 摘 要： | 提出一种基于光延迟反馈掺铒光纤激光器(ODF-EDFL)混沌系统的彩色图像小波数字水印方法.在单环掺铒光纤激光器中加入光延迟反馈回路后,随着系数的变化,在一个较大范围内将出现混沌现象.通过优化后的ODF-EDFL系统混沌序列加密水印图像,将调制好的水印嵌入宿主图像的绿色分量中,即经小波变换后的低频高端部分.实验结果表明,该算法可较好地嵌入和提取彩色图像的水印,并对图像压缩、加噪和滤波等攻击具有较好的鲁棒性.
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| 关 键 词： | 数字水印 ODF-EDFL混沌系统 彩色图像 绿色分量 离散小波变换(DWT) |
| 收稿时间： | 2009-08-19 |
Color Image Watermarking Based on Erbium-Doped Fiber Laser Chaotic System |
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| ZHENG Xiao-peng,TIAN Xiao-jian,SHAN Jiang-dong.Color Image Watermarking Based on Erbium-Doped Fiber Laser Chaotic System[J].Journal of Jilin University: Sci Ed,2010,48(2):307-312. |
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| Authors: | ZHENG Xiao-peng TIAN Xiao-jian SHAN Jiang-dong |
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| Institution: | College of Electronic Science and Engineering, Jilin University, Changchun 130012, China |
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| Abstract: | A novel wavelet watermark algorithm based on erbium-doped fiber laser with an optical delay feedback (ODF-EDFL) system to encrypt watermark image for color image was proposed.The erbium-doped fiber laser (EDFL) was chaos with coefficients varying in a very wide range when the optical time-delayed system was added on it.The chaotic sequences generated by an ODF-EDFL system were improved to encrypt the binary watermark image.Then the modulated watermark was embedded in the high region of the low frequency ban... |
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| Keywords: | digital watermark ODF-EDFL chaos system color image green component discrete wavelet transform (DWT) |
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