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how to find weighted matrix of a binary matrix of same size in image processing

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Priyanka Roy 2014-10-27

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https://ww2.mathworks.cn/matlabcentral/answers/160212-how-to-find-weighted-matrix-of-a-binary-matrix-of-same-size-in-image-processing

评论： Priyanka Roy 2014-10-27

采纳的回答： Andrei Bobrov

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I have a matrix A like this;

A=[1 2 3 4 5;4 5 6 7 1;3 4 5 9 1; 7 8 9 2 4;1 5 9 5 2];

P is a binary matrix of same size of A; P =

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

I want to replace all 1 of P with the value of A at same index position without using for loop. How can I overcome this problem. Please help me.

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采纳的回答

Andrei Bobrov 2014-10-27

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https://ww2.mathworks.cn/matlabcentral/answers/160212-how-to-find-weighted-matrix-of-a-binary-matrix-of-same-size-in-image-processing#answer_156693

在 MATLAB Online 中打开

Pnew = P.*A;

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Priyanka Roy 2014-10-27

Thanks :)

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