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Table 7 Mean error value comparisons between our method and the AIVC algorithm after white balancing and gamma correction for various block sizes

From: Wavelet-based color modification detection based on variance ratio

Demosaicing method

Shifted hue degree

32 × 32

64 × 64

128 × 128

256 × 256

512 × 512

Bilinear

AIVC

3.32

1.37

0.46

0.14

0.05

Proposed

6.52

3.87

1.91

1.30

0.94

AHD

AIVC

23.50

19.04

16.62

14.99

13.46

Proposed

14.99

15.40

16.09

16.00

16.59

AMaZE

AIVC

25.27

20.84

19.08

17.62

15.41

Proposed

20.47

19.37

20.41

20.87

22.07

DCB

AIVC

30.18

28.28

29.08

29.27

29.51

Proposed

6.65

6.16

5.76

4.09

3.99

LMMSE

AIVC

25.76

19.52

15.06

12.09

10.33

Proposed

29.87

24.20

20.98

20.23

20.38

VNG

AIVC

14.95

10.91

8.47

7.52

6.77

Proposed

15.04

14.77

15.11

14.34

13.79

HPHD

AIVC

34.37

29.93

27.08

24.76

21.70

Proposed

18.18

18.25

20.09

20.38

21.45