bwconncomp, use the ids assigned by Matlab in a image.

Question

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Hi, when I use bwconncomp function, this create a cc 1x1 struct

Connectivity 8 ImageSize [145 145] NumObjects 7 PixelIdxList 1x7 cell

is there a way to get the numobjects value using a function to can use this one to create others functions or tasks?

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Answer 1

Image Analyst 2012-8-22

0 个投票

You can use bwlabel instead. Is this what you mean?

[labeledImage numberOfObjects] = bwlabel(binaryImage);

or maybe you want the labelmatrix() function?

Answer 2

Mani 2012-8-22

0 个投票

use numPixels = cellfun(@numel,CC.PixelIdxList); objects=length(numPixels);

hope that answers

Image Analyst 2012-8-22

Or you could just ask for the Area when you call regionprops (which you've already had to have had called if you had PixelIdxList)