Table 3. Statistics on Experiment Results.

Volunteers	Gender	Age	Original Image Size	Cropped Image Size	Cropping Ratio
1	Male	29	192*162	79*73	0.18541
2	Male	44	192*162	71*69	0.157504
3	Male	46	192*150	66*65	0.148958
4	Female	43	192*150	64*75	0.166667
5	Female	24	192*150	68*71	0.167639
6	Female	59	192*150	62*63	0.135625
7	Male	50	192*150	72*71	0.1775
8	Female	52	192*144	69*67	0.167209
9	Female	33	192*150	69*75	0.179688
10	Male	25	192*150	70*67	0.162847
Average	N/A	40.5	192*152	approx 69*69	0.165