Daniel Tofino asked . 2022-02-24

Morphological Transformation, remove border border of a closed image

Hello

I need to remove the upper border (red highligth) of this binarized image without affecting the bottom section, i haven't been able to figure out exactly which functions of the Image Processing Toolbox could help me.

morphological tran... , image processing t... , image segmentation , image processing , digital imag

Expert Answer

Prashant Kumar answered . 2024-11-23 01:46:03

Using morphological operations and connected components algorithm, the problem can be solved with the minor loss of bottom pixels.For example:

a=imread('imag.jpeg');
figure;imshow(a)
se = strel('line',8,90);
eroded = imerode(a,se);
b=logical(eroded);
st=regionprops('Table',b(:,:,1),'Area');
m=maxk(st.Area,2);
biggest = bwareafilt(b(:,:,1),[m(2) m(1)]);
figure;imshow(biggest)
dil=imdilate(biggest,se);
figure;imshow(dil)

The above code results in the below image. You can try with some other parameters of morphological processing and check if it will be more clear.

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