Table 4.

Performance metrics on STARE database

Image name	Accuracy	Sensitivity	Specificity	PPV	NPV	FDR	MCC
im0001	0.9179	0.5924	0.9578	0.6328	0.9504	0.3672	0.5665
im0002	0.9288	0.5240	0.9697	0.6366	0.9527	0.3634	0.5394
im0003	0.9357	0.8082	0.9471	0.5767	0.9823	0.4233	0.6497
im0004	0.9215	0.2801	0.9949	0.8626	0.9235	0.1374	0.4650
im0005	0.9275	0.7730	0.9494	0.6833	0.9673	0.3167	0.6855
im0044	0.9449	0.8744	0.9517	0.6373	0.9874	0.3627	0.7184
im0077	0.9398	0.9272	0.9414	0.6617	0.9905	0.3383	0.7527
im0081	0.9508	0.8873	0.9580	0.7072	0.9867	0.2928	0.7659
im0082	0.9470	0.8796	0.9552	0.7034	0.9850	0.2966	0.7581
im0139	0.9411	0.7891	0.9600	0.7099	0.9735	0.2901	0.7155
im0162	0.9504	0.9060	0.9553	0.6880	0.9894	0.3120	0.7638
im0163	0.9518	0.9422	0.9529	0.7040	0.9928	0.2960	0.7898
im0235	0.9488	0.8445	0.9633	0.7628	0.9780	0.2372	0.7736
im0236	0.9483	0.8266	0.9657	0.7749	0.9750	0.2251	0.7708
im0239	0.9469	0.7715	0.9705	0.7783	0.9693	0.2217	0.7448
im0240	0.9198	0.5112	0.9867	0.8626	0.9250	0.1374	0.6262
im0255	0.9550	0.8138	0.9748	0.8198	0.9738	0.1802	0.7912
im0291	0.9635	0.5892	0.9915	0.8394	0.9699	0.1606	0.6856
im0319	0.9655	0.5775	0.9899	0.7820	0.9738	0.2180	0.6549
im0324	0.9410	0.5174	0.9838	0.7639	0.9528	0.2361	0.5993
Average	0.9423	0.7318	0.9660	0.7294	0.9700	0.2706	0.6908
2nd human observer	0.9347	0.8955	0.9382	0.6432	0.9883	0.3567	0.7228