# RuntimeError: Exception thrown in SimpleITK Image\_CopyInformation: /tmp/SimpleITK/Code/Common/src/sitkImage.cxx:278: sitk::ERROR: Source Image for information does not match this image's dimension.
**URL:** https://discourse.itk.org/t/runtimeerror-exception-thrown-in-simpleitk-image-copyinformation-tmp-simpleitk-code-common-src-sitkimage-cxx-sitk-source-image-for-information-does-not-match-this-images-dimension/5787
**Category:** Uncategorized
**Created:** [March 8, 2023, 9:24pm UTC](https://discourse.itk.org/t/runtimeerror-exception-thrown-in-simpleitk-image-copyinformation-tmp-simpleitk-code-common-src-sitkimage-cxx-sitk-source-image-for-information-does-not-match-this-images-dimension/5787 "2023-03-08T21:24:53Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@banikr](https://discourse.itk.org/u/banikr)
#### Post date: [March 8, 2023, 9:24pm UTC](https://discourse.itk.org/t/runtimeerror-exception-thrown-in-simpleitk-image-copyinformation-tmp-simpleitk-code-common-src-sitkimage-cxx-sitk-source-image-for-information-does-not-match-this-images-dimension/5787/1 "2023-03-08T21:24:53Z")
I am working on `multiscale_demons` registration and getting the following error from this line here: [66\_Registration\_Demons](http://insightsoftwareconsortium.github.io/SimpleITK-Notebooks/Python_html/66_Registration_Demons.html#:~:text=initial_displacement_field.CopyInformation(fixed_images%5B%2D1%5D))
Error:
```auto
Traceback (most recent call last):
File "/home/banikr/PycharmProjects/registration/RegistrationWoMorph.py", line 357, in
initial_displacement_field.CopyInformation(fixed_images[-1])
File "/home/banikr/miniconda3/envs/reg37/lib/python3.7/site-packages/SimpleITK/SimpleITK.py", line 3446, in CopyInformation
return _SimpleITK.Image_CopyInformation(self, srcImage)
RuntimeError: Exception thrown in SimpleITK Image_CopyInformation: /tmp/SimpleITK/Code/Common/src/sitkImage.cxx:278:
sitk::ERROR: Source Image for information does not match this image's dimension.
```
If I print the fixed\_image
```auto
print("low res image >> ", fixed_images[-1].GetDimension())
low res image >> 2
```
which is a 2D image that I am using.
I tried adding the following:
```auto
initial_displacement_field = sitk.Image(fixed_images[-1].GetWidth(),
fixed_images[-1].GetHeight(),
fixed_images[-1].GetDepth(),
fixed_images[-1].GetDimension(),
# sitk.sitkVectorFloat64
)
```
which didn’t work.
The following params are being used:
```auto
shrinkFactors = [4, 2, 1]
smoothingSigmas = [8, 4, 0.000000001]
```
Additional print statement:
```auto
fixed & moving image size >> 0 : (111, 93) (111, 93)
1 : (111, 93) == (111, 93)
2 : (56, 47) == (56, 47)
3 : (28, 23) == (28, 23)
```
After smooth and shrink the `fixed_images[-1]` looks like:
Also as a side issue the online sources documention for itk seems not to work. for example I wanted to check `sitk.Image` documentation to learn more about `CopyInformation()`
The page won’t simply load.
And this happened so many times for many other pages during troubleshoot.
Any help?
---
### Author:  [@zivy](https://discourse.itk.org/u/zivy)
#### Post date: [March 9, 2023, 5:17pm UTC](https://discourse.itk.org/t/runtimeerror-exception-thrown-in-simpleitk-image-copyinformation-tmp-simpleitk-code-common-src-sitkimage-cxx-sitk-source-image-for-information-does-not-match-this-images-dimension/5787/2 "2023-03-09T17:17:37Z")
Hello @banikr,
Not sure what the problem was with the link to the [Image Documentation](https://simpleitk.org/doxygen/latest/html/classitk_1_1simple_1_1Image.html), works now. Possibly intermittent connectivity issues?
With respect to the error, not enough information to judge, but guessing here. Is it possible that the 2D image is actually a 3D image? `GetDepth()` returns 0 and `GetDimension()` returns 3 and not 2 as expected. Can you share an image example so that we get a better understanding of the image characteristics?
---
### Author:  [@banikr](https://discourse.itk.org/u/banikr)
#### Post date: [March 10, 2023, 12:06am UTC](https://discourse.itk.org/t/runtimeerror-exception-thrown-in-simpleitk-image-copyinformation-tmp-simpleitk-code-common-src-sitkimage-cxx-sitk-source-image-for-information-does-not-match-this-images-dimension/5787/3 "2023-03-10T00:06:51Z")
[imagesforzivy.h5](https://discourse.itk.org/uploads/short-url/moRWFZA8NUHhUmOjFZN1fThh6Ea.h5) (163.3 KB)
Hello @zivy
I have uploaded both matrices of fixed and moving images. The following should access those:
```auto
dataFold = path to where the h5py downloaded
saveSegPath = os.path.join(dataFold, 'imagesforzivy.h5')
with h5py.File(saveSegPath, 'r') as pfile:
fixed_array = np.array(pfile['fixed_image'])
moving_array = np.array(pfile['moving_image'])
```
Also I checked the `fixed_images[-1].GetDepth()` which shows 0.