# How I can use my projection image stack to reconstruct them using RTK

**URL:** https://discourse.itk.org/t/how-i-can-use-my-projection-image-stack-to-reconstruct-them-using-rtk/3281
**Category:** Beginner Questions
**Tags:** rtk
**Created:** [July 14, 2020, 6:52am UTC](https://discourse.itk.org/t/how-i-can-use-my-projection-image-stack-to-reconstruct-them-using-rtk/3281 "2020-07-14T06:52:57Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![shaleenanuj](https://discourse.itk.org/user_avatar/discourse.itk.org/shaleenanuj/32/1193_2.png) [@shaleenanuj](https://discourse.itk.org/u/shaleenanuj)
#### Post date: [July 14, 2020, 6:52am UTC](https://discourse.itk.org/t/how-i-can-use-my-projection-image-stack-to-reconstruct-them-using-rtk/3281/1 "2020-07-14T06:52:57Z")

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Hello sir,

I have projection images taken with a cone-beam source, how using RTK can I reconstruct them.  
I am new to RTK-ITK. Is there any sample program where I can plug in my data. I am using Python as a platform.  
I have seen the first reconstruction example and don’t know how to proceed further.

Thanking you in advance

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### Author: ![dzenanz](https://discourse.itk.org/user_avatar/discourse.itk.org/dzenanz/32/1093_2.png) [@dzenanz](https://discourse.itk.org/u/dzenanz)
#### Post date: [July 14, 2020, 12:57pm UTC](https://discourse.itk.org/t/how-i-can-use-my-projection-image-stack-to-reconstruct-them-using-rtk/3281/2 "2020-07-14T12:57:02Z")

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Have you seen RTK’s [help page](http://wiki.openrtk.org/index.php/RTK_wiki_help)? RTK also has its own separate [mailing list](https://public.kitware.com/mailman/listinfo/rtk-users).

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### Author: ![shaleenanuj](https://discourse.itk.org/user_avatar/discourse.itk.org/shaleenanuj/32/1193_2.png) [@shaleenanuj](https://discourse.itk.org/u/shaleenanuj)
#### Post date: [July 15, 2020, 7:03am UTC](https://discourse.itk.org/t/how-i-can-use-my-projection-image-stack-to-reconstruct-them-using-rtk/3281/3 "2020-07-15T07:03:50Z")

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yes I have looked into the help page as well as posted into mailing list as well but I am not able to get answer.

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### Author: ![James1](https://discourse.itk.org/letter_avatar_proxy/v4/letter/j/c67d28/32.png) [@James1](https://discourse.itk.org/u/James1)
#### Post date: [September 28, 2022, 8:45am UTC](https://discourse.itk.org/t/how-i-can-use-my-projection-image-stack-to-reconstruct-them-using-rtk/3281/4 "2022-09-28T08:45:22Z")

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hello Sir  
I am new ITK & RTK here, Did you solve this problem?