基于小波变换的分块融合算法  

Segment fusion algorithm based on wavelet transform

作　　者：尹德辉[1] 李炳法[2] 唐楷泉[2] 

机构地区：[1]宜宾学院计算机科学与技术系,四川宜宾644007 [2]四川大学计算机学院,四川成都610064

出　　处：《兰州大学学报（自然科学版）》2006年第2期81-85,共5页Journal of Lanzhou University(Natural Sciences)

基　　金：四川省社会发展重点科技攻关基金(03GG006-002)。

摘　　要：目前许多关于图像融合的研究都在空域中进行,隐藏水印图像抗攻击的能力较差．本文采用了基于小波变换的图像融合技术,提出了基于小波变换的分块融合算法,使图像的鲁棒性得到很大提高,尤其是抗 JPEG 压缩和抗噪声干扰的能力较强,算法可应用于数字图像的版权保护和信息隐藏领域．Much research into image fusion has been carried out in the spatial domain. However, the hidden watermarkiag image＇s resistance to attacks is relatively inferior when image fusion is conducted in the spatial domain. We develop a image fusion technique based on wavelet transform. By analyzing the image fusion model in the wavelet domain, we propose the segment fusion algorithm that is based on wavelet transform. The proposed algorithm improves the images＇ robustness significantly, especially their resistance to JPEG compression and noise disturbances. The algorithm can be applied in various fields such as copyright protection of digital images and information hiding.

关 键 词：小波变换 均方差 分块融合 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]