A Hybrid Unsupervised Approach for Retinal Vessel Segmentation

Table 7

Mean results comparison of the proposed method on different datasets.

Datasets	Images	Acc	Sn	Sp	AUC	MCC	CAL
DRIVE ( observer)	20	0.954	0.766	0.972	0.869	0.721	0.690
DRIVE ( observer)		0.958	0.797	0.973	0.885	0.739	0.696
HRF_Normal	15	0.963	0.801	0.982	0.881	0.761	0.699
HRF_DR		0.954	0.726	0.974	0.826	0.666	0.603
HRF_Glaucoma		0.959	0.790	0.979	0.881	0.703	0.667
HRF_Average	45	0.959	0.772	0.978	0.863	0.710	0.656
CHASE_DB1 ( observer)	28	0.997	0.757	0.97	0.877	0.629	0.547
CHASE_DB1 ( observer)		0.996	0.814	0.996	0.905	0.569	0.547
STARE	20	0.996	0.792	0.997	0.895	0.707	0.566