I’m trying to slice an sitk image in 3D but having trouble. The following code doesn’t work for some reason

#### Does not work

```
image = sitk.ReadImage('./myImage.nrrd')
i_indices = np.arange(100,164) // or range(100,164)
j_indices = np.arange(100,164)
z_indices = 100
image[i_indices, j_indices, z_indices]
```

#### Works

```
image[100:164, 100:164, 100]
```

The error is

```
~/.../python3.8/site-packages/SimpleITK/SimpleITK.py in __getitem__(self, idx)
4139 idx = (idx, Ellipsis)
4140
-> 4141 if len(idx) > dim + (Ellipsis in idx):
4142 raise IndexError("too many indices for image")
4143 if (len(idx) < dim) and Ellipsis not in idx:
ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() or a.all()
```

I tried `np.ix_`

approach in numpy too but no success.

How can I **not** go to Array (`sitk.GetArrayFromImage`

), and still be able to slice a range in sitk image by indexing via variables? I think I’m missing something obvious but googling for a good amount of time didn’t result in a solution.

Thanks