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基于小波变换和混沌映射的自适应水印算法 被引量：5

Image-adaptive watermarking algorithm based on chaos map and DWT
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摘要 提出的基于小波变换和混沌映射的自适应图像水印算法中水印由混沌序列生成,在宿主图像的低频系数中嵌入水印信息,嵌入时根据低频逼近系数和高频系数的特点以及树结构关系,给每一个低频系数确定一个相关掩蔽参数,并用此参数控制其对应低频系数嵌入水印时的相对修改强度。实验表明:该算法能够自适应地根据图像内容添加水印,对图像的平滑区进行的修改非常小,而对图像中抑制噪声能力较强的纹理和边缘区域修改较大,使用该算法嵌入的数字水印具有很好的隐蔽性、安全性及鲁棒性。 提出的基于小波变换和混沌映射的自适应图像水印算法中水印由混沌序列生成,在宿主图像的低频系数中嵌入水印信息,嵌入时根据低频逼近系数和高频系数的特点以及树结构关系,给每一个低频系数确定一个相关掩蔽参数,并用此参数控制其对应低频系数嵌入水印时的相对修改强度。实验表明:该算法能够自适应地根据图像内容添加水印,对图像的平滑区进行的修改非常小,而对图像中抑制噪声能力较强的纹理和边缘区域修改较大,使用该算法嵌入的数字水印具有很好的隐蔽性、安全性及鲁棒性。
作者 胡玉平 王志坚 张玲华 尹华
机构地区 广东商学院 广东省电子商务市场应用技术重点实验室
出处 《吉林大学学报（工学版）》 EI CAS CSCD 北大核心 2012年第S1期401-404,共4页 Journal of Jilin University:Engineering and Technology Edition
基金 广东省自然科学基金项目(S2011010001581 S2011010001546) 广州市科技计划项目(11C42140691) 广东商学院科研团队创新基金项目
关键词 信息处理技术 混沌序列 小波变换 图像自适应 数字水印 information processing chaotic sequence wavelet transform image-adaptive watermark
分类号 T-55 [一般工业技术]
  • 相关文献

参考文献8

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二级参考文献25

  • 1潘蓉.小波域内的盲水印提取[J].光子学报,2006,35(10):1613-1616. 被引量：2
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共引文献37

同被引文献70

  • 1尹浩,林闯,邱锋,丁嵘.数字水印技术综述[J].计算机研究与发展,2005,42(7):1093-1099. 被引量：140
  • 2李赵红,侯建军.基于Logistic混沌映射的DCT域脆弱数字水印算法[J].电子学报,2006,34(12):2134-2137. 被引量：38
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引证文献5

二级引证文献26

吉林大学学报（工学版）
2012年 第S1期

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