Question
I have an image with bright dots over a dark back ground, I have created a ROI in it and then created a binary image, Now I want to count number of dots in this image inside ROI region and produce a result like "desired_result.jpg", any ideas or suggestions how can I do it?
Expert Answer
Kshitij Singh
PhD Expert
Answered Aug 25, 2026
As far as I can tell, your sample image is corrupted. Either way, you can do this:
% find centers of objects S = regionprops(mybinaryimage,'centroid'); C = vertcat(S.Centroid); numspots = numel(S) % count objects % show image and plot markers imshow(mybinaryimage); hold on plot(C(:,1),C(:,2),'x')
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