finding black pixel position

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mohd
mohd 2012-4-11
评论： niranjan prasad 2018-7-1
I need to scan black pixel row by row on image and store (or mark) only the position of first black pixel. after store the coordinate of first black pixel, do again in another row. this process is looping but i don't know how to do this. can anyone can help me...

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Andrei Bobrov
Andrei Bobrov 2012-4-11
[ii,jj] = find(all(I==0,3))
[~,k] = unique(ii,'first')
ij = [ii(k) jj(k)]
  2 个评论
mohd
mohd 2012-4-19
many thanks andrei bobrov..:). its help me a lot.
niranjan prasad
niranjan prasad 2018-7-1
Thanks a lot.This really works for me.

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