# MattesMutualInformationImageToImageMetricv4 - Getting the rotation result
**URL:** https://discourse.itk.org/t/mattesmutualinformationimagetoimagemetricv4-getting-the-rotation-result/1793
**Category:** Beginner Questions
**Created:** [April 16, 2019, 3:48pm UTC](https://discourse.itk.org/t/mattesmutualinformationimagetoimagemetricv4-getting-the-rotation-result/1793 "2019-04-16T15:48:22Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@OmerB](https://discourse.itk.org/u/OmerB)
#### Post date: [April 16, 2019, 3:48pm UTC](https://discourse.itk.org/t/mattesmutualinformationimagetoimagemetricv4-getting-the-rotation-result/1793/1 "2019-04-16T15:48:22Z")
Hello everyone,
I have been using ITK for image registration. Currently, I am looking to improve the accuracy the registration, and therefore trying to upgrade to ITKV4.
My current implementation of ITKV3 is using MattesMutualInformationImageToImageMetric and therefore I am trying to use a similar registration type.
I have looked at the code provided as an example [ImageRegistration4.cxx](https://itk.org/Doxygen/html/Examples_2RegistrationITKv4_2ImageRegistration4_8cxx-example.html).
The translation values returned seem to be very accurate. Unfortunately, I could not figure out a way to retrieve the rotation value.
Looking for help finding that crucial value.
Thanks for your time,
Omer
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### Author:  [@dzenanz](https://discourse.itk.org/u/dzenanz)
#### Post date: [April 17, 2019, 2:05pm UTC](https://discourse.itk.org/t/mattesmutualinformationimagetoimagemetricv4-getting-the-rotation-result/1793/2 "2019-04-17T14:05:27Z")
That example uses [TranslationTransform](https://itk.org/Doxygen/html/classitk_1_1TranslationTransform.html), so there is no rotation. If you want rotation too, pick one of the rigid transforms from [the list](https://itk.org/Doxygen/html/group__ITKTransform.html), for example [Rigid2DTransform](https://itk.org/Doxygen/html/classitk_1_1Rigid2DTransform.html). Then you can use [GetAngle()](https://itk.org/Doxygen/html/classitk_1_1Rigid2DTransform.html#a4e04d99fc726d233d3122d54406cdef2) method.
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### Author:  [@OmerB](https://discourse.itk.org/u/OmerB)
#### Post date: [April 17, 2019, 2:12pm UTC](https://discourse.itk.org/t/mattesmutualinformationimagetoimagemetricv4-getting-the-rotation-result/1793/3 "2019-04-17T14:12:23Z")
Thanks a lot for your help, this makes sense.