Obtuse Angle Prediction and Factor Evaluation for Image Reversible Data Hiding

Table 3

Comparisons in terms of shifting rate and reference vector dimension .

Sector radii	of RAP	of OAP-I	of OAP-II
	0.7196/3	0.6581/4	0.6581/4
	0.6977/8	0.6312/10	0.6085/9
	0.6894/15	0.6249/14	0.5998/13