Suggestions in border detection

Dear reader,

For my research I am creating an image (cross section of an artery). In that image some 'regions' can clearly be seen. I would like to write some code that can (semi) automatically create regions out of the image. Maybe my explanation is not so clear, so I included a visual representation of what I'd like. My question is, can anyone help with finding a strategy how to device this. I've tried some tricks but up until now these are not satisfactory.

The result I have up until now:

What I would like to have:

So it needs to be 'cleaned' up and the missing connections need to be connected once more (as shown in red). I am not really worried about the lines in the center, but if they are also effected by the code that's fine. I have found a function that draws brezier curves (https://nl.mathworks.com/matlabcentral/fileexchange/33828-generalised-bezier-curve-matlab-code), so the red parts could be manually added if that helps.

Thank you in advance

[Mathieu NOE]

hello

have you tried this ?

Detect Lines Using the Radon Transform - MATLAB & Simulink - MathWorks France

[KALYAN ACHARJYA]

Can you attach the original image also?

[Ariwan Abdollah]

@mathieu NOE Thank you for the suggestion. I have looked into it. This method seems to show horizontal and vertical lines, if I understand correctly. However, this is not exactly what I think I need, as the lines need to be 'extrapolated' to close the figure. Then what is inside the shape needs to

@Kalyan Acharjya, Yes ofcourse. I included the .fig and the .png

Answer 1

[Ariwan Abdollah]

I ended up following this https://nl.mathworks.com/help/images/detecting-a-cell-using-image-segmentation.html

Answer 2

[Manas Meena]

The following link addresses a similar question of sectioning out arteries. You can refer to the code from this solution.

• https://www.mathworks.com/matlabcentral/answers/288820-how-to-remove-arteries-from-the-heart-tissue-image?s_tid=answers_rc1-2_p2_MLT