This function is an extension of the DICOM-to-NIfTI converter 'dicm2nii' (https://www.mathworks.com/matlabcentral/fileexchange/42997-dicom-to-nifti-converter--nifti-tool-and-viewer). It converts a set of DICOM (Digital Imaging and Communications in Medicine) files to NIFTI-1 format (http://nifti.nimh.nih.gov/nifti-1) "for 4D data" such as functional magnetic resonance imaging (MRI). This function requires the FMRIB Software Library (FSL, http://fsl.fmrib.ox.ac.uk/fsl/fslwiki/) as well as dicm2nii on Linux. An example command is given as follows:
dicom2nii('dicom_folder','out.nii.gz');