Contour Detection and Completion for Inpainting and Segmentation Based on Topological Gradient and Fast Marching Algorithms
Figure 6
(a) Admissible set of points (i.e., most negative values of the topological gradient) in blue, and 3 keypoints automatically selected in black; (b) Distance function computed from these 3 keypoints with the fast marching algorithm; (c) Corresponding Voronoï diagram, with the 3 keypoints and saddle points; (d) Identified minimal path between the keypoints represented on the distance function; (e) Minimal path between the keypoints represented on the original image; (f) Another identified continuous contour from other keypoints.
