Research Article

Extraction of Blood Vessels in Retinal Images Using Four Different Techniques

Figure 2

A typical cross-section of a retinal image and its processing, (a) a typical horizontal cross-section of the image in Figure 1(b), (b) convolution of the pattern in (a) with kernel1, (c) convolution of the pattern in (b) with kernel2.
408120.fig.002a
(a)
408120.fig.002b
(b)
408120.fig.002c
(c)