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Table 5 Robustness(%) with respect to the different number of feature block in Caltech-101

From: Coverless image steganography based on DenseNet feature mapping

Attack

Parameter

(D=9, N=8)

(D=13,N=8)

(D=16, N=8)

(D=20, N=8)

Compression

Q(10)

80.59

54.93

45.66

46.15

Gauss Noise

σ(0.001)

92.10

76.29

66.24

63.12

Gauss filtering

(3×3)

95.32

83.41

81.27

76.78

Scaling

3

99.12

97.66

96.20

96.88

C-H-E

–

81.27

49.95

36.68

38.63

Gramma

0.6

89.85

70.93

52.00

63.32

Centered cropping

20%

72.88

47.71

32.88

39.51

Edge cropping

20%

76.98

60.49

35.51

36.10

Rotation

20 ∘

71.02

20.59

17.66

19.90

Translation

(45,30)

75.02

56.39

38.34

39.71