# Rotate 90° a stack of DICOM images

**URL:** https://discourse.slicer.org/t/rotate-90-a-stack-of-dicom-images/3242
**Category:** Support
**Tags:** transforms
**Created:** [June 20, 2018, 8:47am UTC](https://discourse.slicer.org/t/rotate-90-a-stack-of-dicom-images/3242 "2018-06-20T08:47:22Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![Tommaso\_Di\_Noto](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/tommaso_di_noto/32/6802_2.png) [@Tommaso\_Di\_Noto](https://discourse.slicer.org/u/Tommaso_Di_Noto)
#### Post date: [June 20, 2018, 8:47am UTC](https://discourse.slicer.org/t/rotate-90-a-stack-of-dicom-images/3242/1 "2018-06-20T08:47:22Z")

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Hi everyone!

I have a stack of DICOM images which I would like to rotate 90° counterclockwise. Any suggestion?

Thanks a lot in advance!

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### 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: [June 20, 2018, 12:40pm UTC](https://discourse.slicer.org/t/rotate-90-a-stack-of-dicom-images/3242/2 "2018-06-20T12:40:43Z")

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You can do that by adding a linear transform and setting the rotation. Then you can harden that transform and export the data in whatever format you need.

[https://www.slicer.org/wiki/Documentation/Nightly/Modules/Transforms](https://www.slicer.org/wiki/Documentation/Nightly/Modules/Transforms)