# SimpleITK Bspline image representation

**URL:** https://discourse.itk.org/t/simpleitk-bspline-image-representation/3170
**Category:** Uncategorized
**Created:** [June 11, 2020, 8:58pm UTC](https://discourse.itk.org/t/simpleitk-bspline-image-representation/3170 "2020-06-11T20:58:00Z")
**Posts on this page:** 1
**Showing post:** 3

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### Author: ![ibr](https://discourse.itk.org/user_avatar/discourse.itk.org/ibr/32/468_2.png) [@ibr](https://discourse.itk.org/u/ibr)
#### Post date: [June 11, 2020, 10:45pm UTC](https://discourse.itk.org/t/simpleitk-bspline-image-representation/3170/3 "2020-06-11T22:45:21Z")

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@zivy

Thanks for your quick response and sorry for forgetting adding the link to the paper. I just updated the post and added a link to the paper. It is a popular paper by Unser. I am planning to study it and try to create a notebook tutorial out of it.

The notebook example you added looks interesting but I think it is about image registration. For now, I am interested to know:

- how to compute the B-Spline control points of an image?
- how to use these control points to re-create the image?
- how to get the image derivative using the B-spline representation?

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