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Thinning lines preserving 4-connectivity

조회 수: 2 (최근 30일)
Luis Rosety
Luis Rosety 2022년 6월 24일
댓글: Image Analyst 2022년 6월 24일
Hi
I have bw 4-connectivity images where some lines are too thick and I am looking for a method to thinning them but preserving 4-connectivity.
So far I only find the bwmorph 'skel' option but it converts to 8 connectivity.
This is part of the original image. Please notice the bottom double thick segments.
Result after bwmorph(BW,'skel');
Is there any similar function for thinning the lines but preserving 4-connectivity?
Thanks

답변 (1개)

Image Analyst
Image Analyst 2022년 6월 24일
There does not seem to be an option to skeletonize with bwskel or bwmorph to create a skeleton with 4-connectivity. It looks like 8-connectivity is the only option. Why do you need an option to have it be 4-connected?
  댓글 수: 2
Luis Rosety
Luis Rosety 2022년 6월 24일
Thanks for the information!
But this image needs 4-connectivity for futher processing being limited so far to this connectivity.
Image Analyst
Image Analyst 2022년 6월 24일
When I asked "Why?", you basically said "because it does", which is not an explanation.
You can just scan the image and if you find certain patterns, like a diagonal pattern, to fill in a pixel. There should be just a handful of possible patterns that are not 4-connected.

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