Cameraman

Pepper

Monarch

Parrot

Lena

Barbara

HIO

22.4483

22.8755

18.5480

22.3075

22.5286

22.6210

prDeep

37.4303

37.6766

37.3592

35.8606

37.1216

35.3802

$\alpha =2$

RED-FFDNet

32.2827

31.0767

31.1128

29.3208

30.2983

28.3363

RED-(DnCNN-BM3D)

37.5107

36.7210

37.5263

35.9037

37.2331

35.8834

RED-(DnCNN-FFDNet)

38.0472

37.8300

37.5827

36.1371

37.7021

35.7919

HIO

21.0601

21.4198

18.3008

20.4148

20.2428

20.2640

prDeep

34.4134

34.0489

34.1102

32.5135

34.0970

33.8306

$\alpha =3$

RED-FFDNet

31.4831

29.6359

30.4202

28.3931

28.8669

28.0485

RED-(DnCNN-BM3D)

35.3962

34.1891

34.4473

34.1080

34.2989

35.4032

RED-(DnCNN-FFDNet)

34.5469

34.5316

34.3465

33.0877

34.3741

34.1381