Table 11 Robustness to Rotation-based attacks.

From: Robust zero-watermarking for color images using hybrid deep learning models and encryption

Attack name

Bilinear interpolation rotation

Bicubic interpolation rotation

Factor

1°

3°

5°

10°

1°

3°

5°

10°

Avion

PSNR

NCC

31.7638

1.0000

29.7367

1.0000

28.8379

1.0000

27.5618

1.0000

PSNR

NCC

31.7314

1.0000

29.7341

1.0000

28.8410

1.0000

27.5677

1.0000

Jelly

PSNR

NCC

31.2574

0.9998

28.8842

0.9995

27.9329

0.9995

26.8331

1.0000

PSNR

NCC

31.2153

0.9998

28.8852

0.9995

27.9381

0.9995

26.8317

1.0000

Baboon

PSNR

NCC

28.6955

0.9987

27.8239

0.9987

27.3698

0.9987

26.6522

1.0000

PSNR

NCC

28.6481

0.9987

27.8035

0.9987

27.3577

0.9987

26.6451

1.0000

Sailboat

PSNR

NCC

30.1571

1.0000

28.6563

1.0000

27.9703

1.0000

27.0277

1.0000

PSNR

NCC

30.0975

1.0000

28.6342

1.0000

27.9585

1.0000

27.0226

1.0000

Female

PSNR

NCC

33.0800

1.0000

29.8908

1.0000

28.6550

1.0000

27.2056

1.0000

PSNR

NCC

33.0587

1.0000

29.8844

1.0000

28.6514

1.0000

27.2039

1.0000

Splash

PSNR

NCC

32.6833

1.0000

29.9170

1.0000

28.8364

1.0000

27.4139

1.0000

PSNR

NCC

32.6279

1.0000

29.8966

1.0000

28.8234

1.0000

27.4082

1.0000

Porthead

PSNR

NCC

32.4308

1.0000

30.1688

1.0000

29.2069

1.0000

27.7619

1.0000

PSNR

NCC

32.3773

1.0000

30.1481

1.0000

29.1942

1.0000

27.7557

1.0000

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