text: #ifndef EX_BWLABEL_H
  #define EX_BWLABEL_H
  
  #ifdef  __cplusplus
  extern "C" {
  #endif
  
  #include <nifti2_io.h>
  
  int bwlabel(nifti_image *nim, int conn);
  
  //int butter_design(int order, double fl, double fh, double ** a, double ** b, double ** IC);
  //void mexFunction(int nlhs, mxArray *plhs[], int nrhs, const mxArray *prhs[])
  
  
  #endif // EX_BUTTER_H
  