Table 3.

Test results on the dataset I.

Method	3D-GLCM (original)			3D-GLCM invariant
Level Grayscale	Acc	Prec	Recall	Acc	Prec	Recall
16	69.79	33.80	39.58	73.44	50.94	47.92
32	69.27	35.94	45.83	71.88	53.08	52.08
64	71.35	34.11	37.50	75.00	51.04	54.17
128	72.92	40.31	45.83	82.81	65.10	75.00
256	96.88	95.31	93.75	97.92	96.88	95.83

Acc: accuracy; Prec: precision.