Install fitscut by entering the following commands in the terminal:
sudo apt update sudo apt install fitscut
Description:
Extract cutouts from FITS image format files
fitscut is designed to extract cutouts from FITS image format files. FITS, PNG, and JPEG output types are supported. When multiple input files are specified and the output type is PNG or JPEG the resulting image is an RGB color image.
Homepage: http://acs.pha.jhu.edu/general/software/fitscut/
Version: 1.4.4-4build4
Section: universe/science