dcm2niix 1.0.20211006-2 (riscv64 binary) in ubuntu kinetic

 dcm2niix is the successor of dcm2nii, a popular tool for converting images
 from the complicated formats used by scanner manufacturers (DICOM, PAR/REC)
 to the simpler NIfTI format used by many scientific tools. It works for all
 modalities (CT, MRI, PET, SPECT) and sequence types.