number of white pixels

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sanjay
sanjay on 13 Feb 2012
Sir, I am finding connected components of image
L = bwlabel(BW, n) [L, num] = bwlabel(BW, n) How to find out number of white pixels in each connected component
Regards,

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Answers (1)

Andrei Bobrov
Andrei Bobrov on 13 Feb 2012
eg
BW = rand(15)<.5+0;
L = bwlabel(BW, 8);
out = [(1:max(L(:))).',accumarray(nonzeros(L),ones(nnz(L),1))]

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