# \#2d3d

**URL:** https://discourse.itk.org/tag/2d3d/224.md

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## [2D3D registration](https://discourse.itk.org/t/2d3d-registration/5533)

<div class="topic-metadata">

**Author:** [@suzume](https://discourse.itk.org/u/suzume)\
**Replies:** 1\
**Last updated:** [November 30, 2022, 3:01pm UTC](https://discourse.itk.org/t/2d3d-registration/5533 "2022-11-30T15:01:38Z")

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Hi, I want to register the 3D CT image with the 2D image. The IntensityBased2D3DRegistration.cxx needs a pair of 2D orthographic images. And I only have one 2D image. Can I treat this 2D image as a 3D image and register …