Security Measure for Image Steganography Based on High Dimensional KL Divergence

Table 5

Some experimental results of the J-UNIWARD algorithm.

	Measure Value of 4-dimensional probability statistics			Measure Value of proposed method			Difference of Chang Ratio
	LSBM; (0.2)	LSBM; (0.4)	Chang Ratio	LSBM; (0.2)	LSBM; (0.4)	Chang Ratio
1	2.3980	3.8116	58.95%	1.7478	2.8700	64.20%	5.25%
2	1.5503	2.5022	61.40%	1.0278	1.7299	68.31%	6.91%
3	1.8447	2.6529	43.81%	1.0771	1.5964	48.21%	4.40%
4	2.1020	3.0682	45.97%	1.1829	1.7872	51.08%	5.12%
5	1.3284	2.2791	71.56%	0.9469	1.6698	76.34%	4.78%
6	2.6214	4.2552	62.33%	2.2499	3.7877	68.35%	6.02%
7	2.9595	4.7336	59.95%	2.5685	4.2482	65.40%	5.45%
8	1.3384	1.9594	46.40%	0.6621	1.0006	51.13%	4.73%
9	0.9555	1.5528	62.52%	0.6048	1.0036	65.93%	3.41%
10	0.7076	1.1481	62.24%	0.2512	0.4259	69.56%	7.32%
11	0.3445	0.5069	47.12%	0.1264	0.1964	55.35%	8.24%
12	1.6758	2.5975	55.00%	1.3909	2.2457	61.46%	6.46%
13	1.9713	3.0271	53.56%	1.2981	2.0635	58.96%	5.41%
14	2.9178	4.5013	54.27%	1.8871	3.0126	59.64%	5.36%
15	0.8939	1.7379	94.41%	0.4174	0.8262	97.96%	3.55%
16	2.3003	3.4792	51.25%	1.2138	1.8955	56.16%	4.91%
17	1.3965	2.3239	66.41%	0.8405	1.4308	70.23%	3.82%
18	3.3994	5.4091	59.12%	3.0998	5.0776	63.81%	4.68%
19	2.3899	3.9014	63.25%	1.6657	2.7949	67.80%	4.55%
20	1.6447	2.6120	58.81%	1.2476	2.0352	63.13%	4.32%