Table 2.

Performance of different methods on the KIRC dataset.

	Method	DictionarySize=256	DictionarySize=512	DictionarySize=1024
280 training	MCSCSPM-HE	97.39 ± 0.36	97.51 ± 0.41	97.48 ± 0.40
	MCSCSPM-RGB	97.11 ± 0.44	97.49 ± 0.46	97.44 ± 0.43
	MCSCSPM-Gray	88.76 ± 0.59	90.50 ± 0.70	91.28 ± 0.72
	PSDSPM [5]	97.19 ± 0.49	97.27 ± 0.44	97.08 ± 0.45
	SMLSPM [4]	98.15 ± 0.46	98.50 ± 0.42	98.21 ± 0.44
	ScSPM [23]	94.52 ± 0.44	96.37 ± 0.45	96.81 ± 0.50
	KSPM [17]	93.55 ± 0.31	93.76 ± 0.27	93.90 ± 0.19
140 training	MCSCSPM-HE	96.73 ± 0.84	96.89 ± 0.48	96.84 ± 0.67
	MCSCSPM-RGB	96.14 ± 1.17	96.46 ± 1.06	96.64 ± 0.76
	MCSCSPM-Gray	86.79 ± 0.98	88.26 ± 0.59	88.50 ± 0.80
	PSDSPM [5]	96.80 ± 0.75	96.52 ± 0.76	96.55 ± 0.84
	SMLSPM [4]	97.40 ± 0.50	97.98 ± 0.35	97.35 ± 0.48
	ScSPM [23]	93.46 ± 0.55	95.68 ± 0.36	96.76 ± 0.63
	KSPM [17]	92.50 ± 1.12	93.06 ± 0.82	93.26 ± 0.68
70 training	MCSCSPM-HE	95.32 ± 0.67	95.62 ± 0.29	95.40 ± 0.44
	MCSCSPM-RGB	94.45 ± 0.84	94.64 ± 0.72	94.45 ± 0.77
	MCSCSPM-Gray	84.04 ± 1.10	85.13 ± 0.79	84.66 ± 1.14
	PSDSPM [5]	95.12 ± 0.54	95.13 ± 0.51	95.09 ± 0.40
	SMLSPM [4]	96.20 ± 0.85	96.37 ± 0.85	96.19 ± 0.62
	ScSPM [23]	91.93 ± 1.00	93.67 ± 0.72	94.86 ± 0.86
	KSPM [17]	90.78 ± 0.98	91.34 ± 1.13	91.59 ± 0.97