how can remove corner of binary image??

7 views (last 30 days)
sara
sara on 1 Oct 2014
Commented: sara on 8 Oct 2014
how can remove corner of binary image?? foe example if we have an image like this ::
how can remove the corner of this image and get the image like this:
thanks

Accepted Answer

Iain
Iain on 1 Oct 2014
Edited: Iain on 1 Oct 2014
If you repeatedly erode & dilate (imerode & imdilate) the image you should get close to what you want if you use the right "neighbourhoods".
You could alternatively generate ANOTHER binary image, which is 1 (true) where you want to keep it, and 0 where you want to discard it. You'll need to think about how you generate that image, but for a simple version:
other_binary_image = false(size(im));
other_binary_image(:,1:50) = true; % to keep the left 50 columns
new_image = im & other_binary_image;
You'll need to think about how you generate this "mask" to make sure it does what you want it to.
  3 Comments
Image Analyst
Image Analyst on 1 Oct 2014
Yes, that's one way. lain is probably thinking of the method of alternating sequential filters. Here is the reference: http://www.esiee.fr/~coupriem/Pdf/cb04.pdf It looks like (from what the new perimeter looks like) the method you used was watershed.

Sign in to comment.

More Answers (0)

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!