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How to get the total number of black pixels in the connected component to which a pixel is attached?

c++#opencv

asked 2017-02-12 23:16:21 -0600

i need to implement a function that can find the number of all the pixels in the connected component to which a pixel is attached. There are opencv functions for finding connected components from image but i am unable to find any function that can find no. of connected components to a certain pixel. How can i achieve that>?

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answered 2017-02-13 01:56:51 -0600

LBerger
9317 ●2 ●20 ●88 http://www.traimaocv.fr

you can use function connectedComponentsWithStats

Then you can find number of pixel in the components like this (for labels output CV_32S)

stats.at<int>(labels.at<int>(x,y),0)

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Asked: 2017-02-12 23:16:21 -0600

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Last updated: Feb 13 '17

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