connecting 2 object that separately but their location is close ?

##sorry if my english is bad

i have a binary image like this

and i want to connect the little object with the large object and fill the hole on the center of object like this :

what toolbox should i use and can you give me the example code for the problem like this ?

Answer 1

[Image Analyst]

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.

See my Image Segmentation Tutorial.

[Zaidan Adenin Said]

thank you so much for your answer and sorry for late respond, i will try to use it

Answer 2

[Thiago Henrique Gomes Lobato]

You can use the imfill function from the image processing toolbox for such type of problems.