Table 3. Performance comparison with different fusion rules.

Fused spectral bands	RA (%)
	Sum Rule	Fisher Criterion	Weighted Fisher Criterion
Blue, Green	93.27	97.87	99.13
Blue, Red	93.47	98.40	99.23
Blue, NIR	93.27	97.80	99.00
Green, Red	93.77	98.47	99.30
Green, NIR	93.60	97.93	99.13
Red, NIR	93.43	98.60	99.50
Blue, Green, Red	93.17	98.43	99.47
Blue, Green, NIR	93.30	98.10	99.00
Blue, Red, NIR	93.37	98.13	99.27
Green, Red, NIR	93.77	98.47	99.50
Blue, Green, Red, NIR	93.87	98.63	99.50