Separable Reversible Data Hiding in Encrypted Images Based on Difference Histogram Modification

Table 2

Test results for eight test images.

Images	Embedding rate			PSNR
	Lena	0.2222	0.4036	0.5407	48.8411	43.6649	40.9351
Baboon	0.0629	0.1223	0.1779	48.9038	43.1374	39.8523
Barbara	0.1434	0.2571	0.3426	49.0294	43.5576	40.5109
Peppers	0.1639	0.3034	0.4118	48.7383	43.3371	40.3917
Boat	0.1892	0.3447	0.4630	48.8325	43.5223	40.6503
Truck	0.0943	0.1810	0.2600	48.6871	43.0213	39.8344
Airplane	0.2709	0.4691	0.5935	48.9975	44.0302	41.4274
Man	0.1103	0.1951	0.2588	49.1221	43.6780	40.6730