An Entropy-Histogram Approach for Image Similarity and Face Recognition

Table 2

True positive rate (tpr) according to the threshold vector of confidence using AT&T database, with pose 10 (of each of the forty persons) as a reference image (included in the database).

Thr	SSIM	FSIM	ZESIM	ZMSIM	ISSIM	FSM	SHS	RSM
0.1	1	1	1	1	1	1	1	1
0.3	1	0.275	1	0.875	0.975	1	1	1
0.5	1	0	0.275	0.075	0.05	1	1	1
0.7	0.15	0	0	0	0	1	1	1
0.8	0	0	0	0	0	1	1	1
0.9	0	0	0	0	0	0.075	1	1
0.95	0	0	0	0	0	0	0.275	0.85