BUG: RGBUC2 not recognized with slice of numpy array

[Leengit]

Description

GetImageFromArray works from an ordinary numpy array that has 3 colors as its last dimension to produce an ITK image of type itkImageRGBUC2. However, if a slice of the array is used, the fact that there are 3 colors is not recognized at the appropriate time, so the choice of itkImageRGBUC2 is not taken. The image produced is instead of type itkVectorImageUC2

Steps to Reproduce

import numpy as np
import itk
array = np.zeros((40, 50, 3), np.uint8)
patch = array[10:20, 10:20, :]
print(f"type(itk.GetImageFromArray(array, is_vector=True)) = {type(itk.GetImageFromArray(array, is_vector=True))}")
print(f"type(itk.GetImageFromArray(patch, is_vector=True)) = {type(itk.GetImageFromArray(patch, is_vector=True))}")

Expected behavior

type(itk.GetImageFromArray(array, is_vector=True)) = <class 'itk.itkImagePython.itkImageRGBUC2'>
type(itk.GetImageFromArray(patch, is_vector=True)) = <class 'itk.itkImagePython.itkImageRGBUC2'>

Actual behavior

type(itk.GetImageFromArray(array, is_vector=True)) = <class 'itk.itkImagePython.itkImageRGBUC2'>
type(itk.GetImageFromArray(patch, is_vector=True)) = <class 'itk.itkVectorImagePython.itkVectorImageUC2'>

Reproducibility

100%

Versions

ITK 5.2.1

Environment

Python 3.8.10 running on Ubuntu 20.04.

Additional Information

print(f"array.flags = {array.flags}")
print(f"patch.flags = {patch.flags}")

shows that array.flags['C_CONTIGUOUS'] == True but patch.flags['C_CONTIGUOUS'] == False, which may be the problem.