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Table 4 Distance values of the matching process between 10 thumbnails (query images) and their corresponding DC-images. The thumbnail size was 200 × 200 pixels

From: A secure online image trading system for untrusted cloud environments

 

Thumbnails (queries)

Image 1

Image 2

Image 3

Image 4

Image 5

Image 6

Image 7

Image 8

Image 9

Image 10

DC images

Image 1

0.0395

26.1341

12.2620

9.5288

21.0766

6.7601

28.2124

44.8588

9.1255

45.9477

Image 2

26.0971

0.0676

13.8381

19.8279

10.8827

23.0651

5.1133

18.7770

17.5254

19.8659

Image 3

12.2658

13.9006

0.0262

8.9295

9.0135

14.1018

15.9619

32.6083

4.6485

33.6972

Image 4

9.4581

19.8711

8.8703

0.0969

12.5077

10.1546

19.4658

35.4160

7.2475

36.5049

Image 5

21.1033

10.9176

9.0168

12.4646

0.0592

19.6605

7.5280

23.7708

12.5316

24.9239

Image 6

6.7704

23.0348

14.0701

10.2606

19.6018

0.0833

25.1131

41.7595

12.1988

42.8484

Image 7

28.2869

5.1680

16.0096

19.5581

7.4639

25.2549

0.1397

16.5872

19.7152

17.6761

Image 8

45.0437

18.8943

32.7664

35.4996

23.9518

42.0117

16.8160

0.1736

36.4720

5.6394

Image 9

9.1992

17.5245

4.6990

7.2693

12.4669

12.2871

19.6027

36.2492

0.0723

37.3380

Image 10

45.9351

19.7857

33.6578

36.3910

24.9098

42.9031

17.7074

5.6642

37.3634

0.0394