# Registration of CT images based on voxel intensity

**URL:** <https://discourse.slicer.org/t/registration-of-ct-images-based-on-voxel-intensity/41857>\
**Category:** Support\
**Created:** [February 24, 2025, 3:30pm UTC](https://discourse.slicer.org/t/registration-of-ct-images-based-on-voxel-intensity/41857 "2025-02-24T15:30:58Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![azam](https://avatars.discourse-cdn.com/v4/letter/a/ea666f/32.png) [@azam](https://discourse.slicer.org/u/azam)\
**Post date:** [February 24, 2025, 3:30pm UTC](https://discourse.slicer.org/t/registration-of-ct-images-based-on-voxel-intensity/41857/1 "2025-02-24T15:30:58Z")

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Hi everyone  
I have two DICOM CT images and I want to register them based on voxel intensity (not organ contour) using 3D Slicer software. Can you guide me?

1- Which of the registration algorithms are available in this software?(rigid, affine, DIR (b-spline, demons, …))  
2- Which module can I use for this?  
Thanks a lot

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<div class="post-metadata">

**Author:** ![pieper](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/pieper/32/8_2.png) [@pieper](https://discourse.slicer.org/u/pieper)\
**Post date:** [February 24, 2025, 3:32pm UTC](https://discourse.slicer.org/t/registration-of-ct-images-based-on-voxel-intensity/41857/2 "2025-02-24T15:32:43Z")

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[https://slicer.readthedocs.io/en/latest/user\_guide/registration.html](https://slicer.readthedocs.io/en/latest/user_guide/registration.html)