WDVI

WDVI (Weighted Difference Vegetation Index)

Calculation:

WDVI = NIR - s * R

s = slope of soil line

Characteristics:

perpendicular index,

infinite range,

highly sensitive to atmospheric variations

Reference:

Clevers, J. G. P. W. 1988. The derivation of a simplified reflectance model for the estimation of leaf area index, Remote Sensing of Environment, vol 35., pp. 53-70.