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Table 2 Quantitative comparison of proposed algorithm with existing state-of-the-art algorithms

From: Segmentation-based image defogging using modified dark channel prior

Quality metrics

Tarel [42]

He [11]

DEFADE [33]

Zahid [24]

Proposed I

Proposed II

Image 1

SSIM

0.8193

0.8152

0.9124

0.7759

0.9589

0.9584

PSNR

16.7002

14.5748

19.7479

15.6148

25.2252

24.5213

MSE

0.0214

0.0349

0.0106

0.0274

0.0030

0.0064

NIQE

3.58125

4.5049

2.5549

3.2650

2.7789

2.7722

BRISQUE

13.3862

8.1528

10.6486

30.0856

17.1191

15.01

DFD

2.24277

2.3037

1.05968

2.4419

0.8968

0.5426

DHQI

46.0615

41.7444

40.4703

36.0482

43.5329

46.2837

FR-IQA

0.8380

0.8434

0.6843

0.8917

0.8724

0.9113

Image 2

SSIM

0.8623

0.8642

0.8541

0.8087

0.9033

0.9231

PSNR

15.8230

17.2279

13.6398

17.4642

22.1352

21.9253

MSE

0.0262

0.0189

0.0433

0.0179

0.0061

0.0060

NIQE

4.0089

3.9558

2.6941

3.3273

2.6661

2.7847

BRISQUE

23.8366

13.865

6.4767

18.9499

6.1645

9.766

DFD

2.0359

1.5937

0.5847

0.5438

0.4363

0.9021

DHQI

42.4847

35.4505

41.5371

32.4699

39.2611

45.7648

FR-IQA

0.5447

0.9005

0.7801

0.5604

0.6990

0.6605

Image 3

SSIM

0.8367

0.8130

0.7289

0.7271

0.8949

0.927

PSNR

16.8504

16.2668

15.6559

14.9335

21.7254

22.5421

MSE

0.0209

0.0236

0.0272

0.0321

0.0067

0.0056

NIQE

2.1909

5.6549

2.4606

3.1842

2.7001

2.6414

BIQE

21.9000

24.3922

21.4539

23.1685

9.7108

16.4404

DFD

2.0164

1.5703

0.5171

0.4619

0.8122

0.3352

DHQI

44.5484

35.4256

33.6742

34.0620

41.5119

44.8758

FR-IQA

0.5267

0.6322

0.6275

0.8024

0.8052

0.8347

Image 4

SSIM

0.7605

0.8033

0.8095

0.7509

0.9294

0.9294

PSNR

17.8995

15.2632

20.0107

15.1208

23.2599

23.2599

MSE

0.0162

0.0298

0.0100

0.0308

0.0047

0.0047

NIQE

1.6790

4.0895

2.0401

2.4170

2.0671

2.0671

BIQE

26.2341

18.9832

17.7013

24.2683

2.3296

2.3296

DFD

2.2579

2.5654

0.5714

0.5379

0.7176

0.3417

DHQI

44.9974

38.0236

41.2921

32.5804

46.1039

46.0652

FR-IQA

0.6674

0.6360

0.7039

0.8628

0.8640

0.8568

Average of 100 Images

SSIM

0.7712

0.8229

0.8244

0.7412

0.8607

0.8823

PSNR

15.0747

18.2877

18.3466

16.9376

21.2019

21.2011

MSE

0.03352

0.01926

0.02411

0.02254

0.00964

0.00865

NIQE

3.3659

4.5758

2.5645

3.4870

2.2303

2.6650

BIQE

26.7820

20.5096

19.7003

20.4987

17.7489

15.5156

DFD

0.8196

0.05351

0.1982

0.4754

0.06632

0.0250

DHQI

48.0391

49.3807

57.2062

52.6244

60.2057

57.8661

FR-IQA

0.5644

0.6902

0.7701

0.7471

0.8450

0.8596