finding lenght of each branch

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Mohammad Golam Kibria 2011-7-25

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/12327-finding-lenght-of-each-branch

Hi, I have a matrix as follows:

I =

   0     0     0     0     1
   0     0     0     1     0
   1     0     1     0     0
   0     1     0     0     0
   1     0     1     0     0
   0     0     0     1     1

I2=bwmorph(I,'branchpoints');

gives me the branchpoints. I need to find how many pixel are there in each branch. this is a sample matrix. I need a generalize one that can be used for any connected component having multiple branch points. can any body help? Thanks