Table 6. Classification performance (%) with cross-data-set training and testing with ORB+MLP.

Numbers in bold indicate the best performance.

Train/test	LO19	L498	LN83	LN84
LO19	92.0	73.3	75.7	77.5
L498	69.7	89.7	71.5	67.1
LN83	72.3	78.4	93.5	80.1
LN84	79.1	75.9	72.6	96.5