HIS变换复合方法及其像质评价标准

HIS变换复合方法及其像质评价标准

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contributed at 2018-12-04

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Affiliation:  
岳天祥编著
Email:  
yue@lreis.ac.cn
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Geography SubjectGIScience & Remote SensingCartography

Detailed Description

HIS变换复合方法及其像质评价标准

1.    四种典型的HIS变换式

(1)    球状变换模型:

(2)    圆柱体变换模型:

(3)    三角形变换模型:

式中,

(4)    单六角锥变换模型:

式中,

2.    质评价标准

(1)    熵与联合熵的模型:

熵:

联合熵:

  

式中,为图像像素灰度值为i的概率;为图像中像素灰度为与图像中同名像素灰度为时的联合概率;,亦类推。

(2)    平均梯度模型:

式中,g为平均梯度,g越大,表明图像越清晰。

参考文献

    贾永红,李德仁,孙家柄等:四种HIS变换用于SARTM影像复合的比较。遥感学报,199822

How to cite

《资源环境数学模型手册》 (2018). HIS变换复合方法及其像质评价标准, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/537d7118-8c2b-419d-913c-6cf904600fc3
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Contributor

contributed at 2018-12-04

Authorship

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

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