# \#3d

**URL:** https://discourse.itk.org/tag/3d/213.md

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## [Pre-processing segmentation mask](https://discourse.itk.org/t/pre-processing-segmentation-mask/5530)

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**Author:** [@DushiFdo](https://discourse.itk.org/u/DushiFdo)\
**Replies:** 9\
**Last updated:** [December 6, 2022, 7:31pm UTC](https://discourse.itk.org/t/pre-processing-segmentation-mask/5530 "2022-12-06T19:31:30Z")

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I am working with 3D CT images (Dicoms), and I performed several pre-processing steps on the input images such as resampling, normalizing, removing noise, crop image, resizing, crop center and reshaping to (128, 128, 128…

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## [3D Affine:Rotate on two different axes one after the other](https://discourse.itk.org/t/3d-affine-rotate-on-two-different-axes-one-after-the-other/5315)

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**Author:** [@wic94016](https://discourse.itk.org/u/wic94016)\
**Replies:** 7\
**Last updated:** [September 21, 2022, 12:11pm UTC](https://discourse.itk.org/t/3d-affine-rotate-on-two-different-axes-one-after-the-other/5315 "2022-09-21T12:11:09Z")

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Hey guys,I have a serious question about my python code. What I want to do is ,if I have a 3D array like this and I want it to be 90 degrees around the -X axis first,then 10 degrees around the y axis. But it seems t…

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## [3d segmentation refinement](https://discourse.itk.org/t/3d-segmentation-refinement/4993)

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**Author:** [@AmericaBG](https://discourse.itk.org/u/AmericaBG)\
**Replies:** 4\
**Last updated:** [May 19, 2022, 5:34pm UTC](https://discourse.itk.org/t/3d-segmentation-refinement/4993 "2022-05-19T17:34:29Z")

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Hi! I’ve a 3d mask segmentation that I would like to improve by using some method. For example, something like use the mask like a “seed” and refine the segmentation with the original image information. Original image …