[ITK] Nifti, int64 and uint64

[Nil Goyette]

Hi all,

I created an image using nibabel and I found that I can't open them with 
an itk-based tool. I found on this page [1] the supported datatypes of 
"Analyze" image. I was surprised by the absence of [unsigned] long long, 
aka int64 and uint64, mostly because the standard do support them.

In the nifti1.h header
#define DT_INT64                1024     /* long long (64 bits)          */
#define DT_UINT64               1280     /* unsigned long long (64 bits) */

I didn't found much on the internet telling me that ITK doesn't support 
them so I'm still unsure. Does ITK support those datatypes? Thank you.

Nil Goyette

[1] https://itk.org/Wiki/ITK/File_Formats