Coverless Steganography Based on Motion Analysis of Video

Table 4

Accuracy with different attacks and subblock number.

Attack	Accuracy
	S = 1	S = 2	S = 4	S = 8
Salt and pepper ()	0.9980	0.9982	0.9986	0.9975
Salt and pepper ()	0.9952	0.9952	0.9923	0.9930
Salt and pepper ()	0.9896	0.9884	0.9877	0.9867
Gauss ()	0.6583	0.6821	0.7005	0.7132
Gauss ()	0.5994	0.6310	0.6485	0.6688
Gauss ()	0.5695	0.6015	0.6198	0.6425
Speckle ()	0.8176	0.8059	0.8235	0.8268
Speckle ()	0.8074	0.7899	0.8098	0.8149
Speckle ()	0.7934	0.7825	0.8000	0.8059
Compressed MPEG-4 file with H.264 (.mp4 file)	0.9665	0.9635	0.9589	0.9526
Compressed motion JPEG 2000 file (.mj2 file)	0.8240	0.8331	0.8476	0.8542