| 基于非负矩阵分解的图像水印算法 |
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| 引用本文： | 牛万红,潘晨. 基于非负矩阵分解的图像水印算法[J]. 计算机应用与软件, 2009, 26(9): 258-259,275 |
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| 作者姓名： | 牛万红 潘晨 |
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| 作者单位： | 1. 宁夏大学远程教育学院,宁夏,银川,750021
2. 宁夏大学数学计算机学院,宁夏,银川,750021 |
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| 摘 要： | 提出一种基于非负矩阵分解NMF(Non-negative Matrix Factorization)的数字水印算法.先通过NMF构造载体图像基于部分表示的系数矩阵,将灰度水印图像嵌入其中;再利用NMF基矩阵作为密钥提取水印.为了说明有效性,该算法与主流的DCT水印算法进行相关比较实验,结果表明该算法同DCT算法一样有效,且在抗剪切和抗滤波性能上优于DCT算法.
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| 关 键 词： | 非负矩阵分解 数字水印 |
DIGITAL WATERMARKING ALGORITHM BASED ON NON-NEGATIVE MATRIX FACTORIZATION |
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| Niu Wanhong,Pan Chen. DIGITAL WATERMARKING ALGORITHM BASED ON NON-NEGATIVE MATRIX FACTORIZATION[J]. Computer Applications and Software, 2009, 26(9): 258-259,275 |
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| Authors: | Niu Wanhong Pan Chen |
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| Affiliation: | School of Remote Education;Ningxia University;Yinchuan 750021;Ningxia;China;School of Mathematics and Computer Science;China |
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| Abstract: | This paper presents a digital watermarking algorithm based on non-negative matrix factorisation(NMF).The partial representation-based coefficient matrix of a carrier image is constructed by the NMF first,and the grey watermarking image is embedded to the coefficient matrix.Then the base matrix of NMF is utilized as a key to extract the watermarking.The new NMF-based algorithm is compared with the DCT-based algorithm in correlative experiment in order to illustrate its effectiveness.The results show that the... |
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| Keywords: | NMF Digital watermarking |
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