watershed followed by regionprops

Question

Zohra Megnounif 2022-3-25

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1680424-watershed-followed-by-regionprops

评论： Zohra Megnounif 2022-3-29

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

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Answer 1

Image Analyst 2022-3-25

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1680424-watershed-followed-by-regionprops#answer_926879

在 MATLAB Online 中打开

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().