watershed followed by regionprops

hello, I have an image with circular objects and other ellipticals, knowing that the circulars touch the ellipticals, so I used the watershed to separate the objects so I have several gray levels, and now I want to use the regionprops to keep only the circular form. how can i do it please? I don't want to go through the multithreshold.

Thank you

Answer 1

[Image Analyst]

Something like

props = regionprops(labeledImage, 'Circularity');
% Keep only blobs with circularity > 0.6
keepers = find([props.Circularity] > 0.6);
% Get the new binary image.
binaryImage = ismember(labeledImage, keepers);

labeledImage comes from watershed().

[Zohra Megnounif]

Okey thank you :) !!