Commit 289c185b authored by Jordi Inglada's avatar Jordi Inglada

DOC: formula corrections

parent 58538969
......@@ -44,20 +44,20 @@
// otb::MultiChannelRAndGAndNIR VegetationIndexImageFilter with the
// use of the Angular Vegetation Index (AVI).
// The equation for the Angular Vegetation Index involves the gren, red
// and near infra-red bands. $lambda_1$, $lambda_2$ and $lambda_3$ are the mid-band
// and near infra-red bands. $\lambda_1$, $\lambda_2$ and $\lambda_3$ are the mid-band
// wavelengths for the green, red and NIR bands and $\tan^{-1}$ is the arctangent function.
//
// The AVI expression is
//
// \begin{equation}
// \mathbf{fact1} = \frac{\lambda_3-\lambda_2}{\lambda_2}
// \mathbf{A_1} = \frac{\lambda_3-\lambda_2}{\lambda_2}
// \end{equation}
// \begin{equation}
// \mathbf{fact2} = \frac{\lambda_2-\lambda_1}{lambda_2}
// \mathbf{A_2} = \frac{\lambda_2-\lambda_1}{\lambda_2}
// \end{equation}
//
// \begin{equation}
// \mathbf{AVI} = \tan^{-1} {\frac{fact1}{NIR-R}} + tan^{-1}{\frac{fact2}{G-R}}
// \mathbf{AVI} = \tan^{-1}\left({\frac{A_1}{NIR-R}}\right) + \tan^{-1}\left({\frac{A_2}{G-R}}\right)
// \end{equation}
//
// For more details, refer to Plummer work \cite{AVI}.
......
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