| 一种基于分数傅立叶域图象盲水印方案 |
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| 引用本文： | 杨虎,杨瑾. 一种基于分数傅立叶域图象盲水印方案[J]. 激光杂志, 2006, 27(5): 53-54 |
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| 作者姓名： | 杨虎 杨瑾 |
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| 作者单位： | 山西师范大学物理与信息工程学院,临汾,041004;山西师范大学物理与信息工程学院,临汾,041004 |
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| 摘 要： | 利用分数傅立叶变换级次的任意性,提出了一种基于分数傅立叶域图象水印方案。对载体图像进行p级的二维离散分数傅立叶变换,将原始水印图像用LSB算法,嵌入到载体图像的p级分数域的低频系数矩阵中,再进行逆变换得到水印图像。提高了水印安全性,缓解了水印的不可见性与鲁棒性之间的矛盾。仿真试验结果表明该水印具有良好的不可见性和抗噪声攻击性。
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| 关 键 词： | 图像水印 分数傅立叶变换:LSB算法 |
| 文章编号： | 0253-2743(2006)05-0053-02 |
| 修稿时间： | 2006-04-05 |
A blind image watermarking scheme based on fractional fourier domain |
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| YANG Hu,YANG Jin. A blind image watermarking scheme based on fractional fourier domain[J]. Laser Journal, 2006, 27(5): 53-54 |
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| Authors: | YANG Hu YANG Jin |
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| Abstract: | It presents a blind image watermarking scheme based on fractional Fourier domain by utilizing that the order of fractional Fourier transform is freewill.Firstly the carrier image is two dimensional discrete fractional Fourier transformed with order 'p'.Then with LSB algorithm,the original watermarking is embed in the lower 'frequency'coefficient matrix of fractional Fourier domain of order p.The final watermarking image is obtained by inversely transforming the joint spectra.This scheme can enhance the watermarking security,and mitigate the illogicality between the robustness and invisibility.Experiment results showed that this watermarking image has better performance of invisibility and anti-attack of noise. |
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| Keywords: | image watermarking fractional Fourier transform LSB algorithm |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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