Near are to a value

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Alejandro Fernández 2020-4-27

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评论： Alejandro Fernández 2020-4-27

Hi, I was wondering if anyone knows how I can program the option for a binary image to which all its regions have been tagged to determine the index of that region whose area is closest to a value I enter, for expample 1.

value = 1;

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Answer 1

Image Analyst 2020-4-27

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To extract the index of a desired number from a labeled (what you call "tagged") image, you can do this:

[labeledImage, numRegions] = bwlabel(allBlobs); % allBlobs is your binary image.
% Now extract blob #7 ONLY into a new binary image:
oneSingleBlob = ismember(labeledImage, 7);