Blood Vessel Extraction in Color Retinal Fundus Images with Enhancement Filtering and Unsupervised Classification

Table 4

A comparison of running times with existing studies on STARE and DRIVE databases.

	Average running times		System
	STARE	DRIVE
Proposed method	9.1 s	8.6 s	3.3 GHz CPU, 4 GB RAM
Hoover [2]	5 min	—	Sun SPARC station
Jiang and Mojon [14]	8–36 s	8–36 s	600 MHz PC
Staal et al. [7]	15 min	15 min	1 GHz CPU, 1 GB RAM
Nguyen et al. [20]	2.5 s	2.5 s	2.4 GHz CPU, 2 GB RAM
Budai et al. [22]	1.31 s	1.04 s	2.3 GHz CPU, 4 GB RAM
Roychowdhury et al. [26]	6.7 s	3.11 s	2.6 GHz CPU, 2 GB RAM
Rani et al. [27]	3.26 s	2.58 s	3.4 GHz CPU, 4 GB RAM

The results are reported from cited articles.