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

Table 2

Experimental results when NCD = 49000 bits.

Method	Baboon	Barbara	Boat	F-16	Goldhill	Lena	Pepper	Tiffany	Average	SSIM	QI
										(Average)	(Average)
EMD n = 2	52.12	52.12	52.11	52.10	52.10	52.10	52.10	52.12	52.11	0.9999	0.9999
EMD n = 4	54.67	54.64	54.65	54.64	54.64	54.68	54.65	54.67	54.66	0.9999	0.9999
IEMD	50.16	50.21	50.17	50.17	50.15	50.20	50.18	50.19	50.18	0.9999	0.9999
JY	41.43	41.45	41.42	41.43	41.46	41.46	41.44	41.45	41.44	0.9993	0.9992
GEMD	50.99	51.01	51.02	50.99	51.04	51.01	51.02	50.99	51.01	0.9982	0.9999
KKWW n = 2 k = 2	43.15	43.15	43.16	43.09	43.14	43.23	43.11	43.16	43.15	0.9993	0.9997
KKWW n = 2 k = 3	37.29	37.27	37.20	37.29	37.18	37.18	37.25	37.22	37.24	0.9974	0.9992
KKWW n = 4 k = 2	43.79	43.78	43.73	43.68	43.73	43.79	43.71	43.73	43.74	0.9991	0.9997
KKWW n = 4 k = 3	37.29	37.27	37.2	37.29	37.18	37.18	37.25	37.22	37.24	0.9973	0.9993
KKWW n = 4 k = 4	30.99	31.07	31.03	31.03	31.06	31.02	30.92	30.98	31.01	0.9877	0.9977
SB n = 1 k = 2	46.33	46.36	46.36	46.39	46.41	46.36	46.31	46.34	46.36	0.9970	0.9998
SB n = 1 k = 3	39.90	39.9	39.82	39.92	39.83	39.86	39.96	39.91	39.89	0.9898	0.9996
MOPNA n = 2 k = 2	43.94	43.97	43.89	43.93	43.96	43.95	34.94	34.76	42.79	0.9950	0.9998
MOPNA n = 2 k = 3	37.98	37.94	37.93	37.95	37.97	37.99	37.98	37.72	37.93	0.9868	0.9994
MPA n = 2 k = 2	42.57	42.55	42.52	42.54	42.54	42.51	42.57	42.49	42.54	0.9944	0.9998
MPA n = 2 k = 3	35.70	35.68	35.74	35.65	35.74	35.60	35.64	35.67	35.80	0.9819	0.9992
MPA n = 2 k = 4	30.01	30.05	30.02	29.99	30.00	30.01	30.01	30.02	30.01	0.9580	0.9972
MPA n = 4 k = 2	43.15	43.15	43.16	43.09	43.14	42.23	43.11	43.16	43.15	0.9941	0.9998
MPA n = 4 k = 3	36.60	36.61	36.63	36.55	36.60	36.59	36.55	36.53	36.58	0.9827	0.9993
MPA n = 4 k = 4	30.38	30.36	30.27	30.31	30.30	30.26	30.29	30.30	30.31	0.9597	0.9976