Table 4.

Recognition performance (%) of proposed face recognition techniques with SGEF features on different resolution face images

Size of the face image	Symbolic Approach and Analysis				Nearest Neighbor				Support Vector Machine				Probabilistic Neural Network
	AR	ORL	LFW	VISA Face	AR	ORL	LFW	VISA Face	AR	ORL	LFW	VISA Face	AR	ORL	LFW	VISA Face
64 × 64	95.75	99.75	97.22	96.39	97.67	100	98.06	94.07	94.67	89.65	92.30	79.33	92.92	100	98.04	89.28
100 × 100	95.53	100	95.13	96.45	95.68	100	98.09	95.72	88.67	94.25	92.30	86.77	92.92	100	98.04	89.28
120 × 120	94.63	100	91.81	96.51	95.91	100	98.15	95.83	84.66	88.51	92.30	82.64	92.92	100	98.04	89.28
150 × 150	94.32	100	98.47	96.61	95.92	100	98.15	95.89	79.33	82.75	84.61	68.59	92.92	100	98.04	89.28
250 × 250	94.67	100	95.97	96.66	96.13	100	98.13	95.89	72.67	55.17	69.23	57.024	92.92	100	98.04	89.28

Bold values denotes best recognition rate