Table 11 Comparison of metrics across severity grades.

From: Precise and Quantitative Chlorosis Severity Assessment Framework (PQCSAF) using evolutionary superpixels

Severity

Sample

Chi-Square

Histogram Intersection

Correlation Coefficient

Red

Green

Blue

Mean

Red

Green

Blue

Mean

Red

Green

Blue

Mean

Grade-1

Fig. 16a

8.1838

10.8936

7.6685

8.9153

0.5251

0.5380

0.6783

0.5805

0.9644

0.9628

0.9815

0.9696

 

Fig. 16b

26.492

20.2919

45.8929

30.8922

0.4121

0.4521

0.5512

0.4718

0.9482

0.9489

0.9717

0.9562

 

Fig. 16c

9.4183

0.8542

0.9537

3.7421

0.6406

0.7098

0.6902

0.6802

0.9732

0.9728

0.9780

0.9747

 

Fig. 16d

7.0883

0.7739

0.9655

2.9426

0.5285

0.8435

0.7611

0.7110

0.9625

0.9951

0.9877

0.9818

Grade-2

Fig. 16e

1895.455

31.6813

3.7159

643.6175

0.3082

0.4195

0.6733

0.4670

0.9003

0.9080

0.9675

0.9253

 

Fig. 16f

8182.588

17.2656

1.1276

2733.661

0.3078

0.4396

0.6467

0.4647

0.8973

0.9309

0.9561

0.9281

 

Fig. 16g

1184.225

17.2313

1.4309

400.9624

0.3532

0.5027

0.7206

0.5255

0.9231

0.9512

0.9767

0.9503

 

Fig. 16h

7308.965

29.1748

1.2446

2446.462

0.3349

0.4795

0.6491

0.4879

0.9110

0.9245

0.9594

0.9316

Grade-3

Fig. 16i

191.9446

1574.727

780.0511

848.9077

0.4071

0.4091

0.4348

0.4170

0.9680

0.9653

0.9773

0.9702

 

Fig. 16j

1439.347

6.913

0.7257

482.3284

0.3871

0.8042

0.7626

0.6513

0.9543

0.9937

0.9863

0.9781

 

Fig. 16k

177.4627

4.4802

29.5628

70.5019

0.4872

0.6512

0.6839

0.6074

0.9728

0.9814

0.9876

0.9806

 

Fig. 16l

1761.208

10.6888

2.2266

591.3745

0.3348

0.5300

0.7262

0.5304

0.9387

0.9627

0.9881

0.9632

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