Near are to a value

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Alejandro Fernández
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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回答（1 个）

Image Analyst
Image Analyst 2020-4-27
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);
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Alejandro Fernández
Alejandro Fernández 2020-4-27
But what I want is to extract the index from the region whose area is closest to 1 square pixel

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