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how to filter a shape from a binary image

Hi, I would like to try the following task. I have a binary image like as:

image description

And the desired output would be the following:

image description

I have tried using Hough circle detection, but it is not accurate, because of the shape. It is possible to use a custom morphological operation? I tried with ellipse and rectangular kernel shape, but without success. Any ideas?

Thanks!

how to filter a shape from a binary image

Hi, I would like to try the following task. I have a binary image like as:

image description

And the desired output would be the following:

image description

I have tried using Hough circle detection, but it is not accurate, because of the shape. It is possible to use a custom morphological operation? I tried with ellipse and rectangular kernel shape, but without success. Any ideas?

Thanks!

how How to filter a shape from a binary image

Hi, I would like to try the following task. I have a binary image like as:

image description

And the desired output would be the following:

image description

I have tried using Hough circle detection, but it is not accurate, because of the shape. It is possible to use a custom morphological operation? I tried with ellipse and rectangular kernel shape, but without success. Any ideas?

Thanks!