How do I identify the branch points between topmost and bottom most endpoints on the shortest path? Please help.

Question

Soumyajit Pal 2016-3-26

0
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https://ww2.mathworks.cn/matlabcentral/answers/275541-how-do-i-identify-the-branch-points-between-topmost-and-bottom-most-endpoints-on-the-shortest-path

回答： Ben Aicha takwa 2018-7-15

%Code for topmost and bottom most endpoints
  endpoints = bwmorph(clnKonkal, 'endpoints');
  [node_y, node_x] = find(endpoints==1);  %getting the x and y coordinates of the endpoints in node_x and node_y respectively
  [yTopRow, index] = min(node_y);     % Get top row which is the smallest y value
  xTopRow = node_x(index);
  [yBottomRow, index] = max(node_y);  % Get bottom row which is the largest y value
  xBottomRow = node_x(index);
%finding the branchpoints
forkpts = bwmorph(clnKonkal, 'branchpoints');
%Now, how do I find those particular branch points between topmost and bottom most end points