| 基于图像整数小波变换的盲数字水印嵌入算法 |
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| 引用本文： | 邓小颖,胡学龙,高和蓓. 基于图像整数小波变换的盲数字水印嵌入算法[J]. 扬州大学学报(自然科学版), 2006, 9(1): 44-48 |
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| 作者姓名： | 邓小颖 胡学龙 高和蓓 |
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| 作者单位： | 1. 扬州大学,信息工程学院,江苏,扬州,225009
2. 扬州大学,信息工程学院,江苏,扬州,225009;苏州大学,江苏省计算机信息技术重点实验室,江苏,苏州,215006 |
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| 基金项目： | 江苏省教育厅自然科学研究计划项目(KK0310068)，江苏省计算机信息处理技术重点实验室开放研究课题(KJS01023) |
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| 摘 要： | 提出了一种新的在静态图像中嵌入盲水印的算法.通过调整图像3个高频小波变换域的系数,使之对某个整数取模后的余数符合一定的规律,从而表示水印信息.本算法是一种非线性的算法,其优点是可以嵌入的水印数据量大,从信息隐藏的角度,可达2 b it/p ixe l或更多,且对图像的篡改敏感.算法的思想具有通用性,可以结合其他的图像变换和量化方法,达到预定的要求.
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| 关 键 词： | 整数小波变换 取余 非线性算法 水印容量 |
| 文章编号： | 1007-824X（2006）01-0044-05 |
| 收稿时间： | 2005-09-01 |
| 修稿时间： | 2005-09-01 |
A blind watermarking algorithm based on image integer wavelet transform |
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| DENG Xiao-ying,HU Xue-long,GAO He-bei. A blind watermarking algorithm based on image integer wavelet transform[J]. Journal of Yangzhou University(Natural Science Edition), 2006, 9(1): 44-48 |
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| Authors: | DENG Xiao-ying HU Xue-long GAO He-bei |
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| Affiliation: | 1. Coil of Inf Engin, Yangzhou Univ, Yangzhou 225009, China;2.Jiangsu Prov Key Lab for Comp Inf Tech, Suzhou Univ, Suzhou 215006, China |
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| Abstract: | A new image blind watermarking algorithm is proposed in this paper.The coefficients in three high-frequency domains of integer wavelet transform of an image are adjusted,and they are divided by an integer,so the remainders accord with some rules are gotten and therefore the watermark is denoted.This idea is a non-linear algorithm.One of its advantages is high capacity to watermarking.From the hiding information point of view,the capacity can be 2 bit/pixel or more.The watermarking is very sensitive to content tampering.The algorithm is universal and can gain given result by combining other methods of image transform or quantization. |
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| Keywords: | integer wavelet transform remainder non-linear algorithm watermarking capacity |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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