I think what you should do is to search for image science schools in different European countries (depending on which country you have in mind; if you don't know the universities, you can use Wikipedia to search for the list of universities in a country). Then go to faculty members of that department and look at their research interest and find those that work on medical image or image segmentation.

If you find their research interest similar to yours check if they have PhD opportunities and then email your CV to them.

I think what you should do is to search for image science schools in different European countries (depending on which country you have in mind; if you don't know the universities, you can use Wikipedia to search for the list of universities in a country). Then go to faculty members of that department and look at their research interest and find those that work on medical image or image segmentation.

If you find their research interest similar to yours check if they have PhD opportunities and then email your CV to them.

Do you have any grant? If not, you have to search, at first, for any European scholarship.

Try to find in scholarship.net and type your interest

For European countries you can search into these websites:

Germany

https://www.daad.de/en/

Norway:

https://www.jobbnorge.no/search

and

https://www.findaphd.com/

https://scholarship-positions.com/

and etc..

Funded PhD positions are sometimes advertised on https://www.jobs.ac.uk

You can also find positions on there that might lead to enrolment on a PhD (such as KTP positions).