| 一种基于小波系数和混沌序列的图像认证方法 |
| |
| 引用本文： | 李传目,洪联系. 一种基于小波系数和混沌序列的图像认证方法[J]. 河南师范大学学报(自然科学版), 2006, 34(3): 33-36 |
| |
| 作者姓名： | 李传目 洪联系 |
| |
| 作者单位： | 集美大学,计算机工程学院,福建,厦门,361021;集美大学,计算机工程学院,福建,厦门,361021 |
| |
| 摘 要： | 提出了一个新的基于小波系数和混沌序列的图像认证方法.首先对图像进行小波变换,利用混沌序列对低频系数进行编码,然后对编码后的系数进行小波逆变换得到处理后的图像.进而把加密后版权信息插入到图像的LSB,从而保证数字图像的完整性和真实性.实验表明,该算法是一个有效的、实用的图像认证算法.
|
| 关 键 词： | 图像认证 混沌序列 小波 |
| 文章编号： | 1000-2367(2006)03-0033-04 |
| 收稿时间： | 2006-04-01 |
| 修稿时间： | 2006-04-01 |
A Method for Image Authentication Based on Wavelet Coefficients and Chaotic Sequences |
| |
| LI Chuan-mu,HONG Lian-xi. A Method for Image Authentication Based on Wavelet Coefficients and Chaotic Sequences[J]. Journal of Henan Normal University(Natural Science), 2006, 34(3): 33-36 |
| |
| Authors: | LI Chuan-mu HONG Lian-xi |
| |
| Affiliation: | School of Computer Engineering, Jimei University, Xiamen 361021, China |
| |
| Abstract: | A novel image authentication algorithm was proposed, which was based on wavelet coefficients and chaotic sequences. A wavelet transform was performed on the image, and its low-pass coefficients were coded with chaotic sequences. Then, an inverse transform of the coded coefficients would produce the revised image which could ensure the integrality and authenticity of the image. The experiment proves that this authentication method is very effective and useful. |
| |
| Keywords: | image authentication chaotic sequences wavelet |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
