Obtuse Angle Prediction and Factor Evaluation for Image Reversible Data Hiding

Table 8

Shifting ratios of full rank prediction.

Image	Method	EC of 1U radii	EC of 2U radii	EC of 3U radii
F16	RAP	0.5886	0.5570	0.5479
	OAP-I	0.5310	0.5040	0.5019
	OAP-II	0.5310	0.5005	0.4993
Baboon	RAP	0.8977	0.8810	0.8666
	OAP-I	0.8821	0.8668	0.8558
	OAP-II	0.8822	0.8673	0.8582
Barbara	RAP	0.7711	0.7389	0.7265
	OAP-I	0.7160	0.6830	0.6732
	OAP-II	0.7159	0.6825	0.6739
Boat	RAP	0.8013	0.7705	0.7656
	OAP-I	0.7716	0.7462	0.7435
	OAP-II	0.7716	0.7546	0.7521
Peppers	RAP	0.7745	0.7375	0.7360
	OAP-I	0.7175	0.6820	0.6765
	OAP-II	0.7175	0.6846	0.6772