Edge linking and hole filling in binarized cell image

Hi all, I need to segment and classify blood cells in several images.

I have binarized the image using Otsu thresholding but some of the cell edges are weak.

Can someone suggest a method for linking edges in the binarized cell image and then fill those detected holes?

Original image and binarized image are shown.

The final goal is to use watershed segmentation to classify the cells.

Thanks

[KALYAN ACHARJYA]

Edge linking and hole filling in binarized cell image

Yes, it can be done using morphological operations.

[Haider Ali]

@KALYAN, can you suggest the operations for the attached binarized image?

Thanks

Answer 1

[Matt J]

Use imclose with a disk structuring element

se=strel('disk',n);

~imclose(~yourImage,se);