Figure 6From: Retina identification based on the pattern of blood vessels using fuzzy logicSteps of feature vector extraction in the proposed system. (a) Initial image of the retina. (b) Retina's image after preprocessing step. (c) Pattern of blood vessels extracted by the algorithm in [13]. (d) Thinned pattern of vessels using a morphological algorithm. (e) Angular portioning. (f) Radial partitioning.Back to article page