陆地卫星影像数字处理的环境背景效果增强模型

陆地卫星影像数字处理的环境背景效果增强模型

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Contributor(s)

Initial contribute: 2018-12-04

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Affiliation:  
岳天祥编著
Email:  
yue@lreis.ac.cn
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Method-focused categoriesData-perspectiveRemote sensing analysis

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Chinese {{currentDetailLanguage}} Chinese

陆地卫星影像数字处理的环境背景效果增强模型

(1)  灰度扩展公式

 
 


式中,X为原始影像密度值;分别表示该波段内的原始密度最小值和最大值;为线性扩展后的影像密度值。

(2)  局部增强公式:

式中,X是给定点(采样,扫描行)位置的原始像元值;S是“局部”标准偏差(在X点四周的N*N临区内确定);M是局部平均值(条件同上);M是期望的平均值;S期望的标准偏差;MAXA是两个参数(前者最大增益,后者是管理滤波器均值移动的参数)。

(3)  最小距离分类的欧几里距离判别公式:

 
 

 

式中,j是第4567波段的序号;n是波段数;是待测像元i的第j波段的密度;是已知类的第j波段的均值;是待测像元i的第j波段的亮度值与k类第j波段的均值之间的方差;是待测像元j与已知类k之间的距离;当距离的值小于一定的偏差值时,像元就被归属于k类。

参考文献

    龚家龙:津地区陆地卫星影像数字处理的环境背景效果分析。地理研究,198432

 

How to Cite

《资源环境数学模型手册》 (2018). 陆地卫星影像数字处理的环境背景效果增强模型, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/3f3e43d0-f975-4eea-83fe-22ec18e47271
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Last modifier : 
zhangshuo
Last modify time : 
2020-12-17
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Contributor

Initial contribute: 2018-12-04

Co-contributor(s)

Authorship

Affiliation:  
岳天祥编著
Email:  
yue@lreis.ac.cn
Homepage:  
View
Is authorship not correct? Feedback

History

Last modifier : 
zhangshuo
Last modify time : 
2020-12-17
Modify times : 
View History

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