High-Capacity Data Hiding Method Based on Two Subgroup Pixels-Value Adjustment Using Encoding Function

Table 3

Experimental results when NCD = 98305 bits.

Method	Baboon	Barbara	Boat	F-16	Goldhill	Lena	Pepper	Tiffany	Average	SSIM	QI
										(Average)	(Average)
JY	37.70	37.72	37.76	37.73	37.72	37.71	37.73	37.73	37.73	0.9994	0.9990
KKWW n = 2 k = 2	43.13	43.16	43.15	43.11	43.16	43.19	43.11	43.12	43.14	0.9994	0.9995
KKWW n = 4 k = 3	37.22	37.25	37.20	37.22	37.19	37.22	37.23	37.22	37.22	0.9976	0.9986
KKWW n = 4 k = 4	30.99	31.07	31.03	31.03	31.06	31.02	30.92	30.98	31.01	0.9891	0.9956
SB n = 1 k = 2	46.36	46.38	46.38	46.39	46.37	46.36	46.34	46.34	46.37	0.9951	0.9997
SB n = 1 k = 3	39.88	39.89	39.81	39.91	39.87	39.88	39.97	39.88	39.89	0.9819	0.9992
MOPNA n = 2 k = 2	43.92	43.94	43.93	43.94	43.97	43.95	43.93	43.92	43.94	0.9915	0.9996
MOPNA n = 2 k = 3	37.96	37.93	37.95	37.96	37.95	37.98	37.95	37.55	37.90	0.9769	0.9989
MPA n = 2 k = 2	42.57	42.55	42.52	42.54	42.54	42.51	42.57	42.49	42.54	0.9899	0.9996
MPA n = 2 k = 3	35.70	35.68	35.74	35.65	35.74	35.60	35.64	35.67	35.68	0.9655	0.9984
MPA n = 2 k = 4	30.50	30.49	30.51	30.20	30.45	30.56	30.50	30.52	30.46	0.9437	0.9944
MPA n = 4 k = 2	43.15	43.15	43.16	43.09	43.14	43.24	43.11	43.16	43.25	0.9898	0.9996
MPA n = 4 k = 3	36.59	36.62	36.60	36.57	36.61	36.57	36.56	36.56	36.59	0.9536	0.9991
MPA n = 4 k = 4	30.36	30.37	30.25	30.33	30.31	30.28	30.30	30.29	30.31	0.9432	0.9937