Table 1 Averaged ISNR of restored images with several noise levels with BLUR1

${\sigma }_L^2=\mathsf{\text{0}}\mathsf{\text{.308}}$

${\sigma }_M^2=\mathsf{\text{2}}$

${\sigma }_H^2=\mathsf{\text{8}}$

6.39 ± 0.03

-1.51 ± 0.04

0.49 ± 0.06

6.73 ± 0.03

0.71 ± 0.02

-1.45 ± 0.03

12.76 ± 0.04

8.90 ± 0.02

6.49 ± 0.05

2.33 ± 0.03

-5.65 ± 0.04

-3.76 ± 0.08

2.82 ± 0.03

-2.84 ± 0.03

-4.30 ± 0.03

11.13 ± 0.03

8.43 ± 0.03

6.69 ± 0.05

6.99 ± 0.03

5.81 ± 0.01

3.74 ± 0.02

7.61 ± 0.04

2.17 ± 0.02

0.65 ± 0.03

15.79 ± 0.06

9.73 ± 0.09

6.73 ± 0.05