Figure 3From: Fully automatic algorithm for the analysis of vessels in the angiographic image of the eye fundus Mask h 2 obtained for ϵ mi = -2 and ϵ ma = 4, σ = 1 and θ = 0°. This mask is applied to the basic operation of convolution with the input image. The shape of this mask substantially affects the accuracy and operations speed of the algorithm. The mask size depends on the image resolution and on the vessels width range.Back to article page