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基于掺铒光纤激光器混沌系统的彩色图像水印方法
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
作者姓名:郑骁鹏  田小建  单江东
作者单位:吉林大学 电子科学与工程学院, 长春 130012
基金项目:国家自然科学基金(批准号:60372061)
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.

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
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
Authors:ZHENG Xiao-peng  TIAN Xiao-jian  SHAN Jiang-dong
Affiliation:College of Electronic Science and Engineering, Jilin University, Changchun 130012, China
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...
Keywords:digital watermark  ODF-EDFL chaos system  color image  green component  discrete wavelet transform (DWT)
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