sir,I want to measure the length of branches in the vessel segment separately.

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Suganya 2014-3-21

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https://ww2.mathworks.cn/matlabcentral/answers/122511-sir-i-want-to-measure-the-length-of-branches-in-the-vessel-segment-separately

关闭： Walter Roberson 2014-3-21

My skeleton picture is given below

and I have run the following code to find the branchpoints and endpoints of each vessel in above image

W2 = bwmorph(f1,'skel',Inf); figure, imshow(W2); title('centerline'); L = bwmorph(W2,'branchpoints'); [row column] = find(L); branchPts = [row column]; endImg=bwmorph(W2,'endpoints'); [row column]=find(endImg); endPts = [row column]; figure, imshow(W2); title('branching points'); hold on; plot(branchPts(:,2),branchPts(:,1),'r+'); plot(endPts(:,2),endPts(:,1),'g+');

%the following code are used to count the number of branching points in the given image se=strel('disk',5,8); dl=imdilate(L,se); figure; imshow(dl); %dilation of branches ccbranches=bwconncomp(L,8); nob=ccbranches.NumObjects; vwb=f1; vwb(dl)=0; cc=bwconncomp(vwb); Noriginal=ccbranches.NumObjects;

after run the above code,I have to get the following output

now I want to measure the length of each vessel segment separately.I have to use the bwdistgeodesic method in matlab,but my matlab version is 7.10.0 so it can't support this method so anybody can give some suggestion to measure the vessel length.even if you give any pseudo code,it will be very helpful to me.