This is a tool to quickly preview nifti images on the terminal. This can be helpful if you are working on a remote server via SSH and do not have a -X connection. It uses libsixel or Kitty Graphics Protocol to display the images. Niicat can also display png, jpg or similar images.
pip install niicat
niicat T1.nii.gz
If nothing is displayed check if your terminal supports sixel.
Per default niicat is using imgcat from iterm2. If this is causing problems or you are not using iterm2 you can also try using niicat with the option -ls to use libsixel-python or with the option -lb (this will use libsixel-bin which can be installed via sudo apt install libsixel-bin).
Niicat was only tested on python >= 3.7.
Copyright © German Cancer Research Center (DKFZ), Division of Medical Image Computing (MIC). Please make sure that your usage of this code is in compliance with the code license.