fill in missing or incorrect data in skeletonized image

Hello,

I have a skeletonized line that meanders. However, the corners of the line are eiher missing or are not straight. I was wondering if there was any matlab function or techniques that could be used to either straighten out the corners or a add the missing points. I attached the data for it.

Thank you

Andrew

[darova]

Do you have any ideas? Attempts?

Answer 1

[Image Analyst]

You could remove all single pixels with bwareafilt, then call imdilate with a vertical and horizontal structuring element.

mask = bwareafilt(mask, 4, [2, inf]); % Remove single, 4-connected dots.
mask = imdilate(mask, [1,1,1]); % Widen lines by one pixel on each end.
mask = imdilate(mask, [1;1;1]); % Heighten lines by one pixel on each end.