Table 2.

The SNR and CNR of the reconstructed images in Figure 4.

Reconstructed images	Figure 4(a)	Figure 4(b)	Figure 4(c)
SNR
R1	10.93	11.55	15.71
R2	17.26	20.01	24.63
R3	15.93	21.73	30.94
R4	23.14	28.00	27.29
CNR
R2 and R3	1.58	1.81	2.58