Steganography Algorithm Based on the Nonlocal Maximum Likelihood Noise Estimation for Mobile Applications

Table 9

Standard deviation between the recovered image and the image to be hidden.

Test	Round	Red color channel	Green color channel	Blue color channel	General
1	1	0.547939	0.542266	0.549022	0.546409
		0.547939	0.542266	0.549022	0.546409
	2	0.547939	0.542266	0.549022	0.546409
		0.547939	0.542266	0.549022	0.546409
	3	0.547939	0.542266	0.549022	0.546409
		0.547939	0.542266	0.549022	0.546409
	4	0.547939	0.542266	0.549022	0.546409
		0.547939	0.542266	0.549022	0.546409
2	1	0.509814	0.550694	0.583284	0.547931
		0.509814	0.550694	0.583284	0.547931
	2	0.509814	0.550694	0.583284	0.547931
		0.509814	0.550694	0.583284	0.547931
	3	0.509814	0.550694	0.583284	0.547931
		0.509897	0.550755	0.583348	0.548000
	4	0.509814	0.550694	0.583284	0.547931
		0.509897	0.550777	0.583348	0.548007
3	1	0.552109	0.502464	0.438230	0.497601
		0.552109	0.502464	0.437731	0.497435
	2	0.552109	0.502464	0.438230	0.497601
		0.552109	0.502464	0.437731	0.497435
	3	0.552109	0.502464	0.438230	0.497601
		0.552109	0.502464	0.438230	0.497601
	4	0.552109	0.502464	0.438230	0.497601
		0.552109	0.502464	0.438230	0.497601
4	1	0.540507	0.570493	0.590322	0.567107
		0.540507	0.570493	0.590322	0.567107
	2	0.540507	0.570493	0.590322	0.567107
		0.540507	0.570493	0.590322	0.567107
	3	0.540507	0.570493	0.590322	0.567107
		0.540507	0.570493	0.590322	0.567107
	4	0.540507	0.570493	0.590322	0.567107
		0.540507	0.570493	0.590322	0.567107
5	1	0.465200	0.468867	0.438334	0.457467
		0.465200	0.468867	0.438334	0.457467
	2	0.465200	0.468867	0.438334	0.457467
		0.465200	0.468867	0.438334	0.457467
	3	0.465200	0.468867	0.438334	0.457467
		0.465200	0.468867	0.438334	0.457467
	4	0.465200	0.468867	0.438334	0.457467
		0.465200	0.468867	0.438334	0.457467
6	1	0.480343	0.469753	0.445325	0.465140
		0.480482	0.470215	0.446338	0.465679
	2	0.480343	0.469753	0.445325	0.465140
		0.480636	0.470382	0 .446843	0.465954
	3	0.480343	0.469753	0.445325	0.465140
		0.480516	0.469996	0.444935	0.465149
	4	0.480343	0.469753	0.445325	0.465140
		0.480516	0.470052	0.445401	0.465323
7	1	0.557072	0.524134	0.430416	0.503874
		0.557072	0.524134	0.430416	0.503874
	2	0.557072	0.524134	0.430416	0.503874
		0.557072	0.524134	0.430416	0.503874
	3	0.557072	0.524134	0.430416	0.503874
		0.557072	0.524134	0.430416	0.503874
	4	0.557072	0.524134	0.430416	0.503874
		0.557072	0.524134	0.430416	0.503874
8	1	0.532984	0.499369	0.438593	0.490315
		0.532984	0.499369	0.438593	0.490315
	2	0.532984	0.499369	0.438593	0.490315
		0.532984	0.499369	0.438593	0.490315
	3	0.532984	0.499369	0.438593	0.490315
		0.532984	0.499369	0.438593	0.490315
	4	0.532984	0.499369	0.438593	0.490315
		0.532984	0.499369	0.438593	0.490315