Figure 14
From: Structure-based level set method for automatic retinal vasculature segmentation
Segmentation processes of a non-pathological retinal fundus image obtained from DRIVE dataset. Mask image (a), image edge obtained using the proposed phase map (b), image structure obtained using the phase map (c), binary image obtained from (b) using Otsu thresholding[43](d), skeletonized version of (d) after eliminating outliers (e), dilated version of (e) (f), segmented image using the proposed method after 2 iterations (g), segmented image using the proposed method after 51 iterations (h), and the level set function after 61 iterations (i).