how to find the smallest object in the coin image?

4 views (last 30 days)
how to find the smallest object in the image below ? the code I wrote below does not work
A = imread('eight.tif');
C=imbinarize(A, 'adaptive', 'ForegroundPolarity', 'dark');
figure,imshow(C)
BW3=bwareafilt(C,1,'smallest');
Warning: One or more ties for n-th place occurred when selecting objects. Some objects were not selected.
figure, imshow(BW3)

Accepted Answer

Matt J
Matt J on 1 Jan 2022
Edited: Matt J on 1 Jan 2022
This should make it easier:
A = imread('eight.tif');
C=imbinarize(A, 'adaptive', 'ForegroundPolarity', 'dark');
C=bwareafilt( bwconvhull(~C,'objects') ,4);
figure,imshow(C)
  4 Comments
betty
betty on 1 Jan 2022
yes, I think he finds the smallest object
Matt J
Matt J on 1 Jan 2022
okay, well if you think the problem is solved, then please Accept-click the answer to indicate so.

Sign in to comment.

More Answers (0)

Categories

Find more on Images in Help Center and File Exchange

Community Treasure Hunt

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

Start Hunting!