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| 一种新的基于NSCT域的遥感图像增强算法 | |
| 引用本文： | 李殿均,贾振红,覃锡忠,杨杰,胡英杰,杜超本.一种新的基于NSCT域的遥感图像增强算法[J].计算机工程与应用,2012,48(33):203-206. |
| 作者姓名： | 李殿均 贾振红 覃锡忠 杨杰 胡英杰 杜超本 |
| 作者单位： | 1. 新疆大学信息科学与工程学院,乌鲁木齐,830046 2. 上海交通大学图像处理与模式识别研究所,上海,200240 3. 新西兰奥克兰理工大学知识工程与发现研究所,新西兰奥克兰1020 |
| 基金项目： | 科技部国际科技合作项目（No.2009DFA12870）; 教育部促进与美大地区科研合作与高层次人才培养项目 |
| 摘 要： | 针对图像增强处理中产生的伪Gibbs现象、清晰度差等问题,利用下采样轮廓波变换(NSCT)的平移不变性特点,来抑制伪Gibbs现象,同时把模糊对比度和空间频率相结合来处理NSCT系数,提高了增强后图像的清晰度。实验结果证实,该算法使得增强后图像的质量明显优于常用的增强算法,具有一定实践价值。 |
| 关 键 词： | 图像增强 非下采样Contourlet变换(NSCT) 模糊对比度 空间频率 |
New NSCT-based remote sensing image enhancement algorithm |
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| LI Dianjun , JIA Zhenhong , QIN Xizhong , YANG Jie , HU Yingjie , DU Chaoben.New NSCT-based remote sensing image enhancement algorithm[J].Computer Engineering and Applications,2012,48(33):203-206. | |
| Authors: | LI Dianjun JIA Zhenhong QIN Xizhong YANG Jie HU Yingjie DU Chaoben |
| Affiliation: | 1.College of Information Science and Engineering,Xinjiang University,Urumqi 830046,China 2.Institute of Image Processing and Pattern Recognition,Shanghai Jiaotong University,Shanghai 200240,China) 3.Knowledge Engineering and Discovery Research Institute,Auckland University of Technology,Auckland 1020,New Zealand |
| Abstract: | In order to solve the problem appearing in the process of image enhancement,such as,pseudo-Gibbs phenomenon and low contrast,a new threshold algorithm is proposed which is on the basis of NSCT domain.On the one hand,this proposed algorithm makes use of NSCT＇s shift-invariance to prohibit the pseudo-Gibbs phenomenon,on the other hand,deals with NSCT＇s coefficient by combining fuzzy contrast and spatial frequency to improve contrast and get better visual effect.The experimental results show that the proposed algorithm gets better results than the traditional method and owns some certain value in practical application. |
| Keywords: | image enhancement Nonsubsampled Contourlet Transform（NSCT） fuzzy contrast spatial frequency |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
