Materials and Methods
1.2.10. NDVI-LAI Relationship
MODIS NDVI image was generated and the tea garden patches were masked out. Using the masked NDVI image, the NDVI values were extracted from the tea masked area using 3 x 3 pixel extraction method. The average of the actual LAI and NDVI values were found out and the linear regression analysis was carried out using the LAI and NDVI values. The LAI – NDVI values were plotted in the scatter plot and linearly regressed. From the analysis it was observed that there exist a linear relationship between LAI and MODIS based NDVI.