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Table 1 Ratio (%) comparison before and after embedding

From: Steganalysis of JSteg algorithm using hypothesis testing theory

 

Inspected images index

 

No.1

No.2

No.3

No.4

No.5

No.6

No.7

No.8

No.9

No.10

On average

Cover channel selection ratio

0.23

0.17

0.56

0.61

0.21

0.03

0.87

0.41

1.23

0.33

0.63

Stego channel selection ratio

0.23

0.17

0.56

0.62

0.21

0.04

0.88

0.42

1.22

0.34

0.64

Cover DCT coefs. std

0.98

1.01

1.06

1.03

0.90

1.07

1.02

0.93

1.26

1.03

7.45

Stego DCT coefs. std

0.98

1.00

1.06

1.03

0.89

1.07

1.03

0.90

1.27

1.03

7.52

Cover JSteg selection ratio

1.12

0.81

2.46

2.49

0.80

0.08

5.07

2.42

7.56

0.34

1.44

Stego JSteg selection ratio

4.48

2.85

7.63

7.60

2.27

1.07

17.1

7.92

20.5

1.04

4.95

Cover and stego selection similarity

89.5

91.5

94.2

93.0

80.7

80.7

93.9

93.7

93.3

93.9

92.8