S4_D1

S4_D2

S4_D3

S4_D4

S4_D5

S4_D6

Original

6.49

7.23

6.47

6.64

7.52

6.44

Luminance Change

6.50

7.22

6.48

6.64

7.51

6.46

Salt and Pepper Noise

7.45

7.83

7.43

7.51

8.00

7.35

Gaussian Noise

7.87

8.15

7.87

7.91

8.27

7.75

JPEG

6.54

7.29

6.47

6.66

7.57

6.46

JP2

6.49

7.23

6.47

6.64

7.52

6.45