光谱指数

公式

参考文献

SI (盐分指数)

$\text{sqrt}\left(b_2\times b_4\right)$

[13]

NDVI (归一化植被指数)

$\left(b_8-b_4\right)/\left(b_8+b_4\right)$

[15]

MSDI (修正的盐渍化评价指数)

$\begin{array}{l}\text{sqrt}({\left(\left(b_8-b_4\right)/\left(b_8+b_4\right)-1\right)}^2\\ +{\left(\left(b_3-b_4\right)/\left(b_3+b_4\right)\times \left(b_2-b_3\right)/\left(b_2+b_3\right)\right)}^2\end{array}$

[2]