# How to perform rigid registration, and copy roi from moving image to fixed image?

**URL:** <https://discourse.slicer.org/t/how-to-perform-rigid-registration-and-copy-roi-from-moving-image-to-fixed-image/18954>\
**Category:** Support\
**Created:** [July 28, 2021, 12:40am UTC](https://discourse.slicer.org/t/how-to-perform-rigid-registration-and-copy-roi-from-moving-image-to-fixed-image/18954 "2021-07-28T00:40:57Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![yuanzilong0213](https://avatars.discourse-cdn.com/v4/letter/y/f19dbf/32.png) [@yuanzilong0213](https://discourse.slicer.org/u/yuanzilong0213)\
**Post date:** [July 28, 2021, 12:40am UTC](https://discourse.slicer.org/t/how-to-perform-rigid-registration-and-copy-roi-from-moving-image-to-fixed-image/18954/1 "2021-07-28T00:40:57Z")

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Hi, everyone！I want to know how to perform rigid registration, and copy roi from moving image to fixed image? Thanks！

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**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [August 12, 2021, 4:46am UTC](https://discourse.slicer.org/t/how-to-perform-rigid-registration-and-copy-roi-from-moving-image-to-fixed-image/18954/2 "2021-08-12T04:46:59Z")

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If you computed a linear transform then you can apply that to a Markups ROI node. If you computed a warping transform then you specify the region of interest using segmentation and transform the segmentation.