| 基于Laws纹理能量测度的鲁棒水印方案 |
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| 引用本文： | 蔡吉花,王东阳,赵琳琳. 基于Laws纹理能量测度的鲁棒水印方案[J]. 黑龙江科技学院学报, 2008, 18(4) |
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| 作者姓名： | 蔡吉花 王东阳 赵琳琳 |
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| 作者单位： | 1. 黑龙江科技学院,数力系,哈尔滨,150027
2. 哈尔滨工程大学,理学院,哈尔滨,150001 |
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| 基金项目： | 黑龙江省高等教育学会高等教育科学研究"十一五"规划课题 |
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| 摘 要： | 针对数字水印算法中JND阈值鲁棒性较差的现状,研究了JND阈值的鲁棒性与小波系数间的联系,提出基于图像低频小波系数的Laws纹理测度的JND闲值计算模型.该模型能很好地定位嵌入水印,明显地改善检测效果.同时给出一种基于随机统计特征的匹配检测算法.该算法在提高响应值的同时计算出对应的虚警概率,能定量的表征有效性,具有较强的说服力.
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| 关 键 词： | 数字水印 小波变换 JND阈值 匹配检测 |
Robust digital watermarking scheme based on laws texture measures |
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| CAI Jihua,WANG Dongyang,ZHAO Linlin. Robust digital watermarking scheme based on laws texture measures[J]. Journal of Heilongjiang Institute of Science and Technology, 2008, 18(4) |
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| Authors: | CAI Jihua WANG Dongyang ZHAO Linlin |
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| Affiliation: | CAI Jihua1,WANG Dongyang1,ZHAO Linlin2(1.Deptartment of Mathematics , Mechanics,Heilongjiang Institute of Science , Technology,Harbin 150027,China,2.College of Science,Harbin Engineering University,Harbin 150001,China) |
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| Abstract: | Aimed at the absence of robustness of JND threshold in many watermarking algorithms,this paper is devoted to the study on the relationship of JND's robustness and wavelet coefficients and proposes a novel JND model based on Laws Texture Measure,which performs better in locating watermark and improves the detection result.The paper gives a novel blind detection algorithm called matching detection based on statistical characteristics.The algorithm enhances the response and can provide a corresponding probabil... |
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| Keywords: | digital watermarking wavelet transform JND threshold matching detection |
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