Table 3.

A comparison of the independent classification abilities of selected spectral features.

	Means of Normalized Two-Stage VIs				Means on 30 October
	Healthy Rice	Rice Dwarf	Rice Blast	Glume Blight	Healthy Rice	Rice Dwarf	Rice Blast	Glume Blight
NDVI	**	**	**	**	**	*	**	*
SAVI	***	*	***	*	*	**	**	*
TVI	**	*	***	**	**	*	**	*
RDVI	**	**	***	**	*	*	**	*
MSR	**	**	***	**	*	*	**	*
SIPI	***	***	**	***	*	*	**	**

Note: *** classification accuracy ≤ 60%, ** 30% ≤ classification accuracy < 60%, * classification accuracy < 30%.