It was to be noted that the results of this study
were acquired from the simulation of Landsat-5
channel. The band reflectance in the study is the
reflectance from earth surface. However, if satellite
images were used, the effect of atmosphere should be
taken into account. Though the blue band is more
easily affected by atmosphere, the accurate surface
reflectance could be acquired with the development of
the theory and models in atmosphere correction.
Therefore, GBNDVI and GNDVI could be used to
estimate LAI of rice.