Add two binary matrices and get only "1" in each row

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Ideth Kara
Ideth Kara 2020-9-22
评论： Image Analyst 2020-9-22
Hello eveyone!
I have two binary matrices(m*n),i want to add those two matrices but in order to get only '1' in each row .
this is the output matrix ,for example in row (2,5,6 and 7) i have two '1' ,there is any solution to eliminate one of them ?
0 0 0 0 0
0 0 1 1 0
0 0 0 1 0
0 0 0 0 0
0 0 1 0 1
0 1 0 0 1
1 1 0 0 0
1 0 0 0 0
0 0 0 0 0
0 0 0 0 0
Would you please help me ?
  1 个评论
Image Analyst
Image Analyst 2020-9-22
For the case (like rows 2 and 7) where the binary/logical matrices have 1's in different columns, which of the two 1's do you want to keep?
And are your matrices of class logical? Or class double? Or some integer class? It makes a difference!!!

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采纳的回答

Ameer Hamza
Ameer Hamza 2020-9-22
编辑：Ameer Hamza 2020-9-22
This is one way
M = [ ...
0 0 0 0 0
0 0 1 1 0
0 0 0 1 0
0 0 0 0 0
0 0 1 0 1
0 1 0 0 1
1 1 0 0 0
1 0 0 0 0
0 0 0 0 0
0 0 0 0 0];
M_out = M*0;
[v, c] = max(M, [], 2);
idx = sub2ind(size(M), find(v), c(v==1));
M_out(idx) = 1;
Result
>> M_out
M_out =
0 0 0 0 0
0 0 1 0 0
0 0 0 1 0
0 0 0 0 0
0 0 1 0 0
0 1 0 0 0
1 0 0 0 0
1 0 0 0 0
0 0 0 0 0
0 0 0 0 0

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