<nifti_h1> the module that itk is using for handling nifti file data
typedef struct {                /*!< Image storage struct **/

  int ndim ;                    /*!< last dimension greater than 1 (1..7) */
  int nx ;                      /*!< dimensions of grid array             */
  int ny ;                      /*!< dimensions of grid array             */
  int nz ;                      /*!< dimensions of grid array             */
  int nt ;                      /*!< dimensions of grid array             */
  int nu ;                      /*!< dimensions of grid array             */
  int nv ;                      /*!< dimensions of grid array             */
  int nw ;                      /*!< dimensions of grid array             */
  int dim[8] ;                  /*!< dim[0]=ndim, dim[1]=nx, etc.         */
  size_t nvox ;                    /*!< number of voxels = nx*ny*nz*...*nw   */
  int nbyper ;                  /*!< bytes per voxel, matches datatype    */
  int datatype ;                /*!< type of data in voxels: DT_* code    */

  float dx ;                    /*!< grid spacings      */
  float dy ;                    /*!< grid spacings      */
  float dz ;                    /*!< grid spacings      */
  float dt ;                    /*!< grid spacings      */
  float du ;                    /*!< grid spacings      */
  float dv ;                    /*!< grid spacings      */
  float dw ;                    /*!< grid spacings      */
  float pixdim[8] ;             /*!< pixdim[1]=dx, etc. */

  float scl_slope ;             /*!< scaling parameter - slope        */
  float scl_inter ;             /*!< scaling parameter - intercept    */

  float cal_min ;               /*!< calibration parameter, minimum   */
  float cal_max ;               /*!< calibration parameter, maximum   */

  int qform_code ;              /*!< codes for (x,y,z) space meaning  */
  int sform_code ;              /*!< codes for (x,y,z) space meaning  */

  int freq_dim  ;               /*!< indexes (1,2,3, or 0) for MRI    */
  int phase_dim ;               /*!< directions in dim[]/pixdim[]     */
  int slice_dim ;               /*!< directions in dim[]/pixdim[]     */

  int   slice_code  ;           /*!< code for slice timing pattern    */
  int   slice_start ;           /*!< index for start of slices        */
  int   slice_end   ;           /*!< index for end of slices          */
  float slice_duration ;        /*!< time between individual slices   */

  /*! quaternion transform parameters
    [when writing a dataset, these are used for qform, NOT qto_xyz]   */
  float quatern_b , quatern_c , quatern_d ,
        qoffset_x , qoffset_y , qoffset_z ,
        qfac      ;

  mat44 qto_xyz ;               /*!< qform: transform (i,j,k) to (x,y,z) */
  mat44 qto_ijk ;               /*!< qform: transform (x,y,z) to (i,j,k) */

  mat44 sto_xyz ;               /*!< sform: transform (i,j,k) to (x,y,z) */
  mat44 sto_ijk ;               /*!< sform: transform (x,y,z) to (i,j,k) */

  float toffset ;               /*!< time coordinate offset */

  int xyz_units  ;              /*!< dx,dy,dz units: NIFTI_UNITS_* code  */
  int time_units ;              /*!< dt       units: NIFTI_UNITS_* code  */

  int nifti_type ;              /*!< 0==ANALYZE, 1==NIFTI-1 (1 file),
                                                 2==NIFTI-1 (2 files),
                                                 3==NIFTI-ASCII (1 file) */
  int   intent_code ;           /*!< statistic type (or something)       */
  float intent_p1 ;             /*!< intent parameters                   */
  float intent_p2 ;             /*!< intent parameters                   */
  float intent_p3 ;             /*!< intent parameters                   */
  char  intent_name[16] ;       /*!< optional description of intent data */

  char descrip[80]  ;           /*!< optional text to describe dataset   */
  char aux_file[24] ;           /*!< auxiliary filename                  */

  char *fname ;                 /*!< header filename (.hdr or .nii)         */
  char *iname ;                 /*!< image filename  (.img or .nii)         */
  int   iname_offset ;          /*!< offset into iname where data starts    */
  int   swapsize ;              /*!< swap unit in image data (might be 0)   */
  int   byteorder ;             /*!< byte order on disk (MSB_ or LSB_FIRST) */
  void *data ;                  /*!< pointer to data: nbyper*nvox bytes     */

  int                num_ext ;  /*!< number of extensions in ext_list       */
  nifti1_extension * ext_list ; /*!< array of extension structs (with data) */
  analyze_75_orient_code analyze75_orient; /*!< for old analyze files, orient */

} nifti_image ;



array_of_nifti_file_extensions::Array{String} = [".nia",".nii",".nii.gz",".hdr",".img",".img.gz"]
#we are going to be dealing with a One File nifti format first (files that store imaging data as such that both the header and image data is saved within a single file) -> [".nii",".nii.gz"]
#later support for 2 file nifti data -> [".hdr",".img"]
#adding a property within the MedImage struct -> is_label()









