Maybe a Gaussian blur, then a posterization can help. You obtain areas of equal color. Find rules that allow to tell whether two colors of neighboring areas belong to the same object or not.

Regards,

Joachim

You should describe more details!

use image segmentation method to train a classier and then extract the desired object segmented object... This will do.... https://in.mathworks.com/videos/image-segmentation-app-1504291389509.html

You can use clustering! OR watershed segmentation will be helpful as well! Try this:

https://uk.mathworks.com/help/images/marker-controlled-watershed-segmentation.html;jsessionid=ad64cdb8b9dcefc77b56b902de24

Thank you all for the useful feedback ! i real appreciate

I think colour segmentation is better for that kind of image.

Dear Faiza Bukenya Thank you.Can you please elaborate more

I think your problem is similar to the one here https://uk.mathworks.com/help/images/image-segmentation-using-the-color-thesholder-app.html . There is also this https://uk.mathworks.com/help/images/color-based-segmentation-using-the-l-a-b-color-space.html

Dear Faiza Bukenya thank you, i real appreciate

Hi Burhan

in your example you need to consider uncertainty or grey logic, you may also consider Fuzzy calssification,

best,

Mohammad

It is difficult if the occluded object is the same kind of the other objets in the scene