Attack type

Intensity

Proposed scheme

[3]

PSNR

NC

PSNR

NC

Compression

JPEG compression (Q = 60)

32.4461

0.8564

32.4273

0.9004

JPEG compression (Q = 70)

32.9402

0.9163

32.9126

0.9126

JPEG compression (Q = 80)

33.6178

0.9844

33.5874

0.9102

Noise

Speckle noise

35.2496

0.9878

35.1973

0.9138

Salt & pepper noise

35.0859

0.9709

34.7111

0.9817

Filtering

Median filtering (3 × 3)

33.9339

0.9194

33.9918

0.9133

Median filtering (5 × 5)

30.6079

0.8027

30.6583

0.7869

Wiener filtering (3 × 3)

35.7532

0.9732

35.8472

0.9282

Wiener filtering (5 × 5)

33.5019

0.7832

33.5941

0.7798

Rotating

5 degree

20.0438

0.9407

20.0449

0.8953

10 degree

17.5140

0.9390

17.5147

0.8857

Rescaling

Scale (0.5)

33.1163

0.9846

33.1603

0.9404

Scale (2)

41.1787

1.0000

41.1122

0.9412

Cropping

Cropping (1/16)

18.4751

0.9895

18.4741

0.9661

Cropping (1/4)

12.1114

0.9563

12.1112

0.8599