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How to do skeletonization for this image [closed]

asked 2017-12-27 21:23:28 -0600

NirvanaDon gravatar image

updated 2017-12-27 21:49:02 -0600

Hey guys, im trying to do skeletonization for this image using python 3.6.3 opencv.

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I'm hoping to use Guo-hall or Zhang-Suen thinning algorithms to skeletonize this image. Please advice me for python(3.6.3) opencv.

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Closed for the following reason the question is answered, right answer was accepted by NirvanaDon
close date 2017-12-29 02:27:52.645091

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Which version of opencv? And do you have the contrib modules installed?

Tetragramm gravatar imageTetragramm ( 2017-12-28 00:38:25 -0600 )edit

@Tetragramm hey im using opencv 3.3.1 , No im very new to using python.. I only have numpy and opencv2 installed.

NirvanaDon gravatar imageNirvanaDon ( 2017-12-28 00:47:39 -0600 )edit

Very simple!

from skimage.morphology import skeletonize

But please pay attention to this, the input parameter should be either 0 or 1, so you should do it like this:

ske = (skeletonize(thr_img//255) * 255).astype(np.uint8)

moHe gravatar imagemoHe ( 2017-12-29 01:42:43 -0600 )edit

@moHe thank you! i finally got it to work! You save me from many headaches!!!

NirvanaDon gravatar imageNirvanaDon ( 2017-12-29 02:01:51 -0600 )edit

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answered 2017-12-28 03:13:46 -0600

LBerger gravatar image

You can use thinning algorithm in ximgproc. You will have to compile opencv_extra sync with opencv

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Sorry, i don't quite understand. I am new to python.. please advice me. Do i need to add extra whl for my python in order to use thinning algorithm in xmingproc?

NirvanaDon gravatar imageNirvanaDon ( 2017-12-28 03:53:15 -0600 )edit

you will need opencv_contrib package or you have to build opencv and opencv_contrib and install in your python version

LBerger gravatar imageLBerger ( 2017-12-28 05:42:52 -0600 )edit

Either the opencv_contrib package from your package manager, or you need to follow the appropriate tutorial HERE. You also need to include the opencv_contrib package in the build. When you download the source, there's a README file that explains how to do it, linked HERE.

Tetragramm gravatar imageTetragramm ( 2017-12-28 11:21:28 -0600 )edit

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Asked: 2017-12-27 21:23:28 -0600

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Last updated: Dec 28 '17