| 基于QSWT的数字图像水印算法 |
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| 引用本文： | 王忠.基于QSWT的数字图像水印算法[J].计算机工程与应用,2006,42(2):81-83. |
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| 作者姓名： | 王忠 |
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| 作者单位： | 武汉化工学院计算机科学与工程学院,武汉,430073;华中科技大学光电子工程系,武汉,430074 |
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| 摘 要： | 该文基于QSWT提出了一个数字图像水印的算法,该算法针对水印嵌入子带的选取、子带阀值的计算、QSWT的构造、水印的嵌入和提取都给出了相应的策略。实验证明算法对常用的图像处理攻击如JPEG压缩、低通滤波、剪切、加噪和旋转等攻击具有较好的鲁棒性和不可见性。
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| 关 键 词： | DWT QSWT 数字水印 鲁棒性 |
| 文章编号： | 1002-8331-（2006）02-0081-03 |
A Digital Image Watermark Algorithm Based on the Qualified Significant Wavelet Tree |
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| Wang Zhong.A Digital Image Watermark Algorithm Based on the Qualified Significant Wavelet Tree[J].Computer Engineering and Applications,2006,42(2):81-83. |
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| Authors: | Wang Zhong |
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| Affiliation: | 1. The Department of Optoelectronic Engineering, Huazhong University of Technology,Wuhan 430074; 2. School of Computer Science and Engineering,Wuhan Institute of Chemical Technology,Wuhan 430073 |
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| Abstract: | In this paper,a digital watermark algorithm based on the qualified significant wavelet tree (QSWT) is proposed.This algorithm presents corresponding strategy to select embedded subband for watermarking,calculate the subband threshold,construct the QSWT,embed and extract the watermark.The experiment results show that the algorithm provides high robustness and imperceptibility against the original image process attacks such as JEPG compression,low-pass filter,cropping,noise and rotating etc. |
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| Keywords: | DWT QSWT |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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