Just found out that I should not post to the mailing list anymore. So here is my question.

I am using the python wrapper of itk to manipulate. I checked the quick

start guide (

http://itkpythonpackage.readthedocs.io/en/latest/Quick_start_guide.html#usage)

to go from numpy to vnl matrices and vice-versa. However, I got into

trouble when trying to use those utils with itk images. As a short example:

```
import numpy as np
img = np.random.random((100, 100, 100))
img_itk = itk.GetImageFromArray(img)
vnl_matrix = img_itk.GetDirection().GetVnlMatrix()
type(vnl_matrix)
vnl_matrix_fixedPython.vnl_matrix_fixedD_3_3
itk.GetArrayFromVnlMatrix(vnl_matrix)
TypeError: in method 'itkPyVnlD__GetArrayViewFromVnlMatrix', argument 1 of
type 'vnl_matrixD *'
```

So what would the proper way of converting this matrix into a numpy array

or view.