ResampleImageFilter.SetSize() does not accept numpy arrays in Python 3 about simpleitk HOT 9 CLOSED

Hello @Ivanka07,

That is strange. The conversion to list should work with the versions you are using. On OSX, Python 3.8.5, SimpleITK 2.1.0 the following works, please try:

import SimpleITK as sitk
import numpy as np

rif = sitk.ResampleImageFilter()
rif.SetSize(np.array([1, 2, 3], dtype='int').tolist())

from simpleitk.

4 years later, I stumbled upon this issue myself. Is this going to get fixed?

from simpleitk.

@Grieverheart have you found a solution/workarround for this issue? I am using Python3.8 and SimpleITK 2.1.0 and above proposed solutions don't work for me...

from simpleitk.

using tolist() does not work for me in my case.

from simpleitk.

Thank you for reporting the issue.

@zivy Have you encountered this issue?

from simpleitk.

Confirmed the issue. I have never tried it with numpy arrays, as I either use tuple or list notation for these operations (these work in Python3).

@haarburger just out of curiosity, what was the motivation for using a numpy array for specifying size vs. the more concise list or tuple notation?

from simpleitk.

@zivy Using numpy arrays was not my decision. It was implemented like that in pyradiomics and as a pyradiomics user I stumbled upon this.

from simpleitk.

There looks like there is a related SWIG issue open: swig/swig#888
We will also look into finding a work around in SimpleITK too.

from simpleitk.

Hello @zhilothebest,

Please provide a minimal working example showing that the usage of tolist() does not work. I tried resampling with a numpy array converted via the tolist function and it does work for me.

Possibly specify the Python version and OS you are using.

from simpleitk.