images

size n × m

number of iterations

$\frac{{\Vert denoisedI-noisyI\Vert }^2}{\left(MN\ast sigm{a}^2\right)-1}$

denoised PSNR

noisy PSNR

cameraman

398 × 398

38

−0.94385

13.7602

13.2205

barbara

510 × 510

30

−0.93372

13.5776

13.2581

camera

340 × 340

38

−0.9668

15.234

15.0525

flower

256 × 256

34

−0.94424

13.7758

13.078

girl

216 × 233

25

−0.95348

14.0803

13.4558

Iline

1961 × 3553

32

−0.95397

14.0965

13.2012

university

480 × 640

35

−0.95166

14.3564

13.8881