| 小波变换改进的MASK匀光算法 |
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| 引用本文： | 张振,朱宝山,朱述龙,曹闻.小波变换改进的MASK匀光算法[J].遥感学报,2009,13(6):1078-1086. |
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| 作者姓名： | 张振 朱宝山 朱述龙 曹闻 |
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| 作者单位： | 解放军信息工程大学,测绘学院,遥感信息工程系,河南,郑州,450052 |
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| 摘 要： | 针对单幅遥感影像内部所产生的亮度不均匀现象, 提出了一种基于小波变换改进的MASK匀光算法。该方法在利用小波变换获得不均匀背景图像的过程中, 对小波系数进行了自适应非线性改进, 克服了直接利用分块取均值获取背景影像的不足, 试验表明该算法能够较好地解决单幅遥感图像中亮度不均匀的现象, 具有较强的实用性。
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| 关 键 词： | 遥感影像匀光方法 Mask匀光方法 小波变换 改进的Mask匀光方法 |
| 收稿时间： | 2008/10/15 0:00:00 |
| 修稿时间： | 2009/2/20 0:00:00 |
Improved MASK dodging method based on wavelet |
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| ZHANG Zhen,ZHU Bao-shan,ZHU Shu-long and CAO Wen.Improved MASK dodging method based on wavelet[J].Journal of Remote Sensing,2009,13(6):1078-1086. |
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| Authors: | ZHANG Zhen ZHU Bao-shan ZHU Shu-long and CAO Wen |
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| Institution: | Institute of Surveying and Mapping, Information Engineering University, Henan Zhengzhou 450052,China;Institute of Surveying and Mapping, Information Engineering University, Henan Zhengzhou 450052,China;Institute of Surveying and Mapping, Information Engineering University, Henan Zhengzhou 450052,China;Institute of Surveying and Mapping, Information Engineering University, Henan Zhengzhou 450052,China |
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| Abstract: | Aimed at the uneven illumination phenomena in the remote sensing image, this paper puts forward an improved MASK dodging method based on wavelet. According to the process of MASK dodging method, this method proposed improves the modulus of wavelet self-adaptively and non-linearly in the process of the background image obtaining. Finally the experiments are given, which show that this improved dodging method can avoid the disadvantages of the method using mean in blocks as the modulus of wavelet directly, and they also show that this method in this paper can resolve the uneven illumination in remote sensing image. It can be applied in many cases. |
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| Keywords: | dodging method for Remote Sensing Image MASK dodging method wavelet transform improved MASK dodging method |
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