Table 5 NPCR using integer wavelet transform and singular value decomposition.

From: Analysis of hybrid integer wavelet transform and singular value decomposition for image steganography under various noise conditions

Attack

DFT

DCT

DWT

LWT

IWT

DWT + DFT

DWT + DCT

Gaussian noise with 0.01 mean & 0.002 variance

20.4592

19.9856

16.1643

15.8457

7.1307

16.1214

16.2137

Gaussian noise with 0.0 mean &0.001 variance

20.4545

19.6596

19.3314

18.7406

8.7018

19.2655

19.303

Gaussian noise with 0.01 mean & 0.005 variance

15.8619

15.4912

12.1881

12.1797

5.5845

12.2034

12.2193

Speckle noise 0.02

11.8417

11.6076

11.671

11.6945

5.6486

11.7962

11.8609

Speckle noise 0.01

14.7868

14.3621

14.6812

14.3489

6.6489

14.6409

14.704

Speckle noise 0.015

13.071

12.7415

12.8257

12.7583

5.9594

12.914

13.0254

Salt and Pepper noise 0.02

13.9494

13.8098

11.7338

12.7018

7.5412

11.6658

11.7314

Salt and Pepper noise 0.01

16.9087

16.6592

14.6339

15.0875

9.7707

14.3356

14.6051

Salt and Pepper noise 0.005

19.6107

19.5136

17.3282

18.1487

12.4243

17.0473

17.436

Poisson Noise

16.8813

16.3592

16.14

15.7386

7.162

16.0566

16.2181

Attack

DWT + SVD

LWT + DCT

LWT + SVD

IWT + DCT

IWT + SVD

Proposed

Gaussian noise with 0.01 mean & 0.002 variance

26.1977

15.7778

17.4602

7.0763

18.9813

29.5665

Gaussian noise with 0.0 mean &0.001 variance

28.5175

18.6562

17.881

8.7155

22.7179

27.1251

Gaussian noise with 0.01 mean & 0.005 variance

21.1672

12.1124

16.215

5.5526

14.3047

23.001

Speckle noise 0.02

20.2855

11.5907

15.7915

5.6155

13.5987

22.078

Speckle noise 0.01

23.6482

14.1964

16.9893

6.69

16.4746

27.404

Speckle noise 0.015

21.5873

12.6602

16.368

2.8462

14.7007

24.0618

Salt and Pepper noise 0.02

20.6134

12.6627

15.958

7.5776

13.6612

22.7103

Salt and Pepper noise 0.01

24.5335

15.3929

17.3825

9.8785

16.5159

27.7131

Salt and Pepper noise 0.005

28.0127

18.1731

18.0544

12.5206

20.7836

27.3561

Poisson Noise

25.9013

15.8595

17.7

7.2477

18.7303

29.0816

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