A Strategy for Improving the Quality of Ghost Imaging

Table 1

The ratio of gray value of different r value and gray value when r = 1.

r	Gray value	Ratio of gray value(r = 1)
1	0.6	1
0.23	0.52	0.87
0.44	0.3	0.5
1.78	0.78	1.3
5.28	0.9	1.5