Refining a Jagged "Skeletonized" Line (Image)

Above is the basic image of the line I want to refine / smooth out.

Below is a mock-up I made in paint of what I want to line to look like.

I'm extracting the center-line of fish using the better skeletonization method and while it is much more refined then the basic bwmorph skel() function it isn't quite as smooth as desired.

I'm processing a couple of images but the problem is roughly the same in all of them (jagged bumps). Does anyone have any tips of how to go about this problem?

Thanks in advance.

Answer 1

[Image Analyst]

You need to increase the number of pixels in the image, like you did. If you do that the line will be smoother.

[Brian Vu]

This was the exact method I used to solve this problem. I simply used the "better skeletonization method" to get the initial line then I added pixels using a dilation.

Answer 2

[Julian Eskin]

Did you ever solve this problem? I need to do a similar kind of thing.

[Brian Vu]

See Image Analyst's response (and mine) below.