# \#connected-components

**URL:** https://discourse.itk.org/tag/connected-components/248.md

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## [ConnectedComponentImageFilter vs HardConnectedComponentImageFilter](https://discourse.itk.org/t/connectedcomponentimagefilter-vs-hardconnectedcomponentimagefilter/7379)

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**Author:** [@SteveRobbins](https://discourse.itk.org/u/SteveRobbins)\
**Replies:** 2\
**Last updated:** [January 17, 2025, 11:52pm UTC](https://discourse.itk.org/t/connectedcomponentimagefilter-vs-hardconnectedcomponentimagefilter/7379 "2025-01-17T23:52:31Z")

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I’ve got a binary image (a thresholded head MR) for which I want to obtain the connected components. I see there are two filters that look plausible: ITK: itk::ConnectedComponentImageFilter\< TInputImage, TOutputImage,…

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## [Arrays of individual connected components](https://discourse.itk.org/t/arrays-of-individual-connected-components/6065)

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**Author:** [@Sean\_Hatton](https://discourse.itk.org/u/Sean_Hatton)\
**Replies:** 13\
**Last updated:** [September 22, 2023, 3:06pm UTC](https://discourse.itk.org/t/arrays-of-individual-connected-components/6065 "2023-09-22T15:06:16Z")

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Using connected components, I am iterating through a 3D image with several blobs. I need the array/mesh of each components, how can I do this without writing too much to disk? I can get individual stats, I need the indiv…