A framework for retinal vasculature segmentation based on matched filters

Table 4 Performance results on STARE database images

Image	Sen	Spe	PPV	NPV	ACC	Kappa
1	0.6313	0.9807	0.7999	0.9561	0.9427	0.6744
2	0.6580	0.9810	0.7769	0.9661	0.9515	0.6862
3	0.7702	0.9818	0.7900	0.9796	0.9645	0.7607
4	0.6295	0.9792	0.7754	0.9587	0.9435	0.6641
5	0.6161	0.9785	0.8011	0.9478	0.9339	0.6601
6	0.7376	0.9865	0.8405	0.9750	0.9646	0.7665
7	0.8418	0.9821	0.8529	0.9805	0.9667	0.8287
8	0.8301	0.9790	0.8182	0.9806	0.9638	0.8039
9	0.8326	0.9830	0.8553	0.9799	0.9669	0.8253
10	0.7173	0.9857	0.8614	0.9657	0.9561	0.7586
11	0.8381	0.9750	0.7838	0.9823	0.9616	0.7887
12	0.8455	0.9826	0.8516	0.9818	0.9681	0.8307
13	0.7469	0.9878	0.8951	0.9656	0.9584	0.7911
14	0.7451	0.9898	0.9121	0.9647	0.9593	0.7975
15	0.7146	0.9845	0.8604	0.9627	0.9527	0.7545
16	0.6000	0.9879	0.8900	0.9381	0.9336	0.6808
17	0.7817	0.9864	0.8896	0.9700	0.9613	0.8104
18	0.7978	0.9854	0.8032	0.9849	0.9724	0.7857
19	0.8360	0.9758	0.6840	0.9896	0.9675	0.7352
20	0.6562	0.9781	0.7509	0.9659	0.9487	0.6725
Average	0.7413	0.9825	0.8246	0.9698	0.9569	0.7538

ISSN: 1475-925X