connecting 2 object that separately but their location is close ?
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Zaidan Adenin Said
on 19 Jan 2020
Commented: Zaidan Adenin Said
on 25 Jan 2020
##sorry if my english is bad
i have a binary image like this
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/262440/image.jpeg)
and i want to connect the little object with the large object and fill the hole on the center of object like this :
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/262441/image.jpeg)
what toolbox should i use and can you give me the example code for the problem like this ?
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Accepted Answer
Image Analyst
on 19 Jan 2020
To connect regions, you can use imclose()
mask = imclose(mask, true(9)); % Vary the 9 to connect more or less close regions.
To fill regions, you can use imfill():
mask = imfill(mask, 'holes');
To erase things touching the border, you can use imclearborder:
mask = imclearborder(mask);
To extract a specified number of largest blobs, you can use bwareafilt():
mask = bwareafilt(mask, 3); % Extract 3 largest blobs.
To extract blobs of a specified size or larger you can use either bwareafilt(mask, [smallArea, largeArea]) or bwareaopen():
mask = bwareafilt(mask, [2000, 5000]); % Extract blobs between 2000 and 5000 in pixel area.
mask = bwareaopen(mask, 4000); % Extract blobs only 4000 pixels or larger.
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