| 遥感影像亮度和反差分布不均匀性校正算法的效果比较 |
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| 引用本文： | 朱述龙,张振,朱宝山,曹闻.遥感影像亮度和反差分布不均匀性校正算法的效果比较[J].遥感学报,2011,15(1):111-122. |
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| 作者姓名： | 朱述龙 张振 朱宝山 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： | 提出能同时消除亮度和反差分布不均匀现象的分块均值方差变换法, 重点对插值匀光法、MASK 匀光
法、同态滤波匀光法、Retinex 匀光法以及分块均值方差变换法的校正效果进行了实验比较。研究表明: 分块均值
方差变换法既能消除亮度分布不均匀现象, 又能消除反差分布不均匀现象, 而MASK 匀光法、插值匀光法、Retinex
匀光法只能解决亮度分布不均匀问题, 同态滤波匀光法仅能减弱亮度分布不均匀现象; 在匀光效果方面, 分块均
值方差变换法最好, MASK 匀光法次之, 插值匀光法紧随其后, 接下来是Re
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| 关 键 词： | 分布不均匀性 插值匀光法 MASK 匀光法 同态滤波匀光法 Retinex 匀光法 分块均值方差变换法 |
| 收稿时间： | 2010/3/25 0:00:00 |
| 修稿时间： | 6/6/2010 12:00:00 AM |
Experimental Comparison among five algorithms of
brightness and contrast homogenization |
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| ZHU Shulong,ZHANG Zhen,ZHU Baoshan and CAO Wen.Experimental Comparison among five algorithms of
brightness and contrast homogenization[J].Journal of Remote Sensing,2011,15(1):111-122. |
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| Authors: | ZHU Shulong ZHANG Zhen ZHU Baoshan and CAO Wen |
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| Institution: | ZHU Shulong,ZHANG Zhen,ZHU Baoshan,CAO Wen Department of Remote Sensing Information Engineering,Zhengzhou Institute of Surveying and Mapping,He'nan Zhengzhou 450052,China |
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| Abstract: | After the brief introduction of existing dodging methods, the piecewise mean-variance adjustment is presented for
both brightness and contrast homogenization. Then, the focus of the paper is put on the experimental comparison among the
results obtained by the following five algorithms: MASK dodging, interpolation dodging, homomorphic filtering dodging,
retinex dodging, and piecewise mean-variance adjustment. The experiments indicate that the piecewise mean-variance
adjustment can deal with non-uniform brightness and contrast in an image. MASK dodging, interpolation dodging and retinex
dodging can eliminate the phenomenon of non-uniform brightness. However, homomorphic filtering dodging can only weaken
the phenomenon of non-uniform brightness. The dodging performance ranks piecewise mean-variance adjustment, MASK
dodging, interpolation dodging, retinex dodging, and homomorphic filtering dodging from the best to the worst, respectively. |
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| Keywords: | non-homogeneity interpolation dodging MASK dodging homomorphic filtering dodging retinex dodging piecewise
mean-variance adjustment |
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