WDVI (Weighted Difference Vegetation Index)
- WDVI = NIR - s * R
- s = slope of soil line
- perpendicular index,
- infinite range,
- highly sensitive to atmospheric variations
- 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.