# HG changeset patch
# User bert <bert>
# Date 1108578662 0
# Node ID 5bec199a517d6c890008af9874d478a6a1bdb905
# Parent  37ea9177abdaada9d37b94016d7c7d80f2a20982
Initial checkin, code from Anthonin Reilhac

diff --git a/conversion/minctoecat/ecat_write.c b/conversion/minctoecat/ecat_write.c
new file mode 100644
--- /dev/null
+++ b/conversion/minctoecat/ecat_write.c
@@ -0,0 +1,642 @@
+#include "ecat_write.h"
+#include "machine_indep.h"
+
+#define	MatBLKSIZE 512
+#define	MatFirstDirBlk 2
+#define NameLen 32
+#define IDLen 16
+#define OK 0
+#define ERROR   -1
+#define V7 70
+
+
+char* dstypecode[NumDataSetTypes] =
+	{ "u","s","i","a","n","pm","v8","v","p8","p","i8","S","S8","N", "FS"};
+
+static char* magicNumber = "MATRIX";
+
+struct	MatDir {
+  int matnum;
+  int strtblk;
+  int endblk;
+  int matstat; 
+};
+
+struct matdir { 
+  int	nmats, nmax;
+  struct MatDir *entry;
+};
+
+typedef struct matdirblk {
+  int	nfree, nextblk, prvblk, nused ;
+  struct MatDir matdir[31] ;
+} MatDirBlk ;
+
+
+FILE *mat_create(const char  *fname,Main_header *mhead);
+FILE *mat_open( const char *fname, char *fmode);
+int mat_write_main_header(FILE *fptr, Main_header *header);
+int map_main_header(char *bufr,Main_header *header);
+int mat_wblk(FILE *fptr,int blkno, char *bufr,int nblks);
+MatDirList *mat_read_directory(MatrixFile *mptr);
+MatDirBlk *mat_rdirblk(MatrixFile *file, int blknum);
+int write_host_data(MatrixFile *mptr, int matnum, MatrixData *data);
+int matrix_find(MatrixFile *matfile, int matnum,struct MatDir *matdir);
+int mat_enter(FILE *fptr, Main_header *mhptr, int matnum, int nblks);
+int insert_mdir(struct MatDir matdir, MatDirList *dirlist);
+int mat_write_image_subheader(FILE *fptr, Main_header *mhptr,int blknum, Image_subheader *header);
+int map_image_header(char *buf, Image_subheader *header);
+int matrix_freelist(MatDirList *matdirlist);
+void swaw( short *from, short *to, int length);
+int mat_close(FILE *fptr);
+int mat_rblk(FILE *fptr, int blkno, char *bufr, int nblks);
+
+MatrixFile     *matrix_create(const char *fname, Main_header * proto_mhptr) {
+  MatrixFile     *mptr = NULL;
+  FILE           *fptr, *mat_create();
+  
+  matrix_errno = MAT_OK;
+  matrix_errtxt[0] = '\0';
+  
+  fptr = mat_create(fname, proto_mhptr);
+  if (!fptr) return( NULL );
+  
+  mptr = (MatrixFile *) calloc(1, sizeof(MatrixFile));
+  if (!mptr) {
+    fclose( fptr );
+    return( NULL );
+  }
+  
+  mptr->fptr = fptr;
+  
+  mptr->fname = (char *) malloc(strlen(fname) + 1);
+  if (!mptr->fname) {
+    free( mptr );
+    fclose( fptr );
+    return( NULL );
+  }
+  
+  strcpy(mptr->fname, fname);
+  mptr->mhptr = (Main_header *) malloc(sizeof(Main_header));
+  if (!mptr->mhptr) {
+    free( mptr->fname );
+    free( mptr );
+    fclose( fptr );
+    return( NULL );
+  }
+  
+  memcpy(mptr->mhptr, proto_mhptr, sizeof(Main_header));
+  mptr->dirlist = mat_read_directory(mptr);
+  if (!mptr->dirlist) {
+    free( mptr->fname );
+    free( mptr->mhptr );
+    free( mptr );
+    fclose( fptr );
+    return( NULL );
+  }
+  return mptr;
+}
+
+FILE *mat_create(const char  *fname,Main_header *mhead) {
+  FILE *fptr;
+  int bufr[MatBLKSIZE/sizeof(int)];
+  int ret;
+  
+  fptr = mat_open( fname, "w+");
+  if (!fptr) return( NULL );
+  ret = mat_write_main_header( fptr, mhead );
+  if( ret != 0 ) {
+    mat_close( fptr);
+    return( NULL );
+  }
+  memset(bufr,0,MatBLKSIZE);
+  bufr[0] = 31;
+  bufr[1] = 2;
+  
+  ret = write_matrix_data(fptr,MatFirstDirBlk,1,(char*)bufr,SunLong);
+  
+  if( ret != 0 ) {
+    mat_close( fptr);
+    return( NULL );
+  }
+  return (fptr);
+}
+
+FILE *mat_open( const char *fname, char *fmode) {
+  FILE *fopen(), *fptr;
+  
+  matrix_errno = MAT_OK;
+  matrix_errtxt[0] = '\0';
+  fptr = fopen(fname, fmode);
+  return (fptr);
+}
+
+int mat_write_main_header(FILE *fptr, Main_header *header) {
+  char bufr[MatBLKSIZE];
+  
+  map_main_header(bufr, header);
+  return mat_wblk(fptr, 1, bufr, 1);	/* write main header at block 1 */
+}
+
+int map_main_header(char *bufr,Main_header *header) {
+
+  int i = 0, j = 0;
+  char mn[20];
+  /* set magic number */
+  sprintf(mn,"%s%d%s", magicNumber,header->sw_version,
+	  dstypecode[header->file_type]);
+  bufWrite(mn, bufr, &i, 14);
+  
+  /* copy buffer into struct */
+  bufWrite(header->original_file_name, bufr, &i, NameLen);
+  bufWrite_s(header->sw_version, bufr, &i);
+  bufWrite_s(header->system_type, bufr, &i);
+  bufWrite_s(header->file_type, bufr, &i);
+  bufWrite(header->serial_number, bufr, &i, 10);
+  bufWrite_u(header->scan_start_time, bufr, &i);
+  bufWrite(header->isotope_code, bufr, &i, 8);
+  bufWrite_f(header->isotope_halflife, bufr, &i);
+  bufWrite(header->radiopharmaceutical, bufr, &i, NameLen);
+  bufWrite_f(header->gantry_tilt, bufr, &i);
+  bufWrite_f(header->gantry_rotation, bufr, &i);
+  bufWrite_f(header->bed_elevation, bufr, &i);
+  bufWrite_f(header->intrinsic_tilt, bufr, &i);
+  bufWrite_s(header->wobble_speed, bufr, &i);
+  bufWrite_s(header->transm_source_type, bufr, &i);
+  bufWrite_f(header->distance_scanned, bufr, &i);
+  bufWrite_f(header->transaxial_fov, bufr, &i);
+  bufWrite_s(header->angular_compression, bufr, &i);
+  bufWrite_s(header->coin_samp_mode, bufr, &i);
+  bufWrite_s(header->axial_samp_mode, bufr, &i);
+  bufWrite_f(header->calibration_factor, bufr, &i);
+  bufWrite_s(header->calibration_units, bufr, &i);
+  bufWrite_s(header->calibration_units_label, bufr, &i);
+  bufWrite_s(header->compression_code, bufr, &i);
+  bufWrite(header->study_name, bufr, &i, 12);
+  bufWrite(header->patient_id, bufr, &i, IDLen);
+  bufWrite(header->patient_name, bufr, &i, NameLen);
+  bufWrite(header->patient_sex, bufr, &i, 1);
+  bufWrite(header->patient_dexterity, bufr, &i, 1);
+  bufWrite_f(header->patient_age, bufr, &i);
+  bufWrite_f(header->patient_height, bufr, &i);
+  bufWrite_f(header->patient_weight, bufr, &i);
+  bufWrite_i(header->patient_birth_date, bufr, &i);
+  bufWrite(header->physician_name, bufr, &i, NameLen);
+  bufWrite(header->operator_name, bufr, &i, NameLen);
+  bufWrite(header->study_description, bufr, &i, NameLen);
+  bufWrite_s(header->acquisition_type, bufr, &i);
+  bufWrite_s(header->patient_orientation, bufr, &i);
+  bufWrite(header->facility_name, bufr, &i, 20);
+  bufWrite_s(header->num_planes, bufr, &i);
+  bufWrite_s(header->num_frames, bufr, &i);
+  bufWrite_s(header->num_gates, bufr, &i);
+  bufWrite_s(header->num_bed_pos, bufr, &i);
+  bufWrite_f(header->init_bed_position, bufr, &i);
+  for(j = 0; j < 15; j++)
+  	bufWrite_f(header->bed_offset[j], bufr, &i);
+  bufWrite_f(header->plane_separation, bufr, &i);
+  bufWrite_s(header->lwr_sctr_thres, bufr, &i);
+  bufWrite_s(header->lwr_true_thres, bufr, &i);
+  bufWrite_s(header->upr_true_thres, bufr, &i);
+  bufWrite(header->user_process_code, bufr, &i, 10);
+  bufWrite_s(header->acquisition_mode, bufr, &i);
+  bufWrite_f(header->bin_size, bufr, &i);
+  bufWrite_f(header->branching_fraction, bufr, &i);
+  bufWrite_u(header->dose_start_time, bufr, &i);
+  bufWrite_f(header->dosage, bufr, &i);
+  bufWrite_f(header->well_counter_factor, bufr, &i);
+  bufWrite(header->data_units, bufr, &i, 32);
+  bufWrite_s(header->septa_state, bufr, &i);
+  return 1;
+}
+
+int mat_wblk(FILE *fptr,int blkno, char *bufr,int nblks) {
+  int err;
+  
+  matrix_errno = MAT_OK;
+  matrix_errtxt[0] = '\0';
+  
+  /* seek to position in file */
+  err = fseek(fptr, (blkno - 1) * MatBLKSIZE, 0);
+  if (err) return (ERROR);
+  
+  /* write matrix data */
+  err = fwrite(bufr, 1, nblks * MatBLKSIZE, fptr);
+  if (err == -1) return (ERROR);
+  if (err != nblks * MatBLKSIZE) {
+    matrix_errno = MAT_WRITE_ERROR;
+    return (ERROR);
+  }
+  return (0);
+}
+
+MatDirList *mat_read_directory(MatrixFile *mptr) {
+  struct MatDir   matdir;
+  MatDirList     *dirlist;
+  MatDirBlk      *matdirblk;
+  int             i, blknum;
+  
+  matrix_errno = MAT_OK;
+  matrix_errtxt[0] = '\0';
+  
+  dirlist = (MatDirList *) calloc(1, sizeof(MatDirList));
+  if (dirlist == NULL) return (NULL);
+
+  blknum = MatFirstDirBlk;
+  do {
+    matdirblk = mat_rdirblk(mptr, blknum);
+    if (matdirblk == NULL) {
+      free(dirlist);
+      return (NULL);
+    }
+    for (i = 0; i < matdirblk->nused; i++) {
+      matdir.matnum = matdirblk->matdir[i].matnum;
+      matdir.strtblk = matdirblk->matdir[i].strtblk;
+      matdir.endblk = matdirblk->matdir[i].endblk;
+      matdir.matstat = matdirblk->matdir[i].matstat;
+      insert_mdir(matdir, dirlist);
+    }
+    blknum = matdirblk->nextblk;
+    free(matdirblk);
+  }
+  while (blknum != MatFirstDirBlk);
+  return (dirlist);
+}
+
+MatDirBlk *mat_rdirblk(MatrixFile *file, int blknum) {
+  MatDirBlk      *matdirblk;
+  int             i, j, err, ndirs;
+  int             dirbufr[MatBLKSIZE / 4];
+  FILE           *fptr = file->fptr;
+  
+  matrix_errno = MAT_OK;
+  matrix_errtxt[0] = '\0';
+  
+  matdirblk = (MatDirBlk *) malloc(MatBLKSIZE);
+  if (matdirblk == NULL)
+    return (NULL);
+  
+  err = read_matrix_data(fptr, blknum, 1, (char *) dirbufr, SunLong);
+  
+  if (err == ERROR) {
+    free(matdirblk);
+    return (NULL);
+  }
+  matdirblk->nfree = dirbufr[0];
+  matdirblk->nextblk = dirbufr[1];
+  matdirblk->prvblk = dirbufr[2];
+  matdirblk->nused = dirbufr[3];
+  
+  if (matdirblk->nused > 31) {
+    matrix_errno = MAT_INVALID_DIRBLK;
+    free(matdirblk);
+    return (NULL);
+  }
+  ndirs = (MatBLKSIZE / 4 - 4) / 4;
+  for (i = 0; i < ndirs; i++) {
+    matdirblk->matdir[i].matnum = 0;
+    matdirblk->matdir[i].strtblk = 0;
+    matdirblk->matdir[i].endblk = 0;
+    matdirblk->matdir[i].matstat = 0;
+  }
+  
+  for (i = 0; i < matdirblk->nused; i++) {
+    j = i + 1;
+    matdirblk->matdir[i].matnum = dirbufr[j * 4 + 0];
+    matdirblk->matdir[i].strtblk = dirbufr[j * 4 + 1];
+    matdirblk->matdir[i].endblk = dirbufr[j * 4 + 2];
+    matdirblk->matdir[i].matstat = dirbufr[j * 4 + 3];
+  }
+  return (matdirblk);
+}
+
+int matrix_write(MatrixFile *mptr, int matnum,MatrixData *data) {
+  int   slice ;
+  
+  matrix_errno = MAT_OK;
+  matrix_errtxt[0] = '\0';
+  if (mptr == NULL) matrix_errno = MAT_READ_FROM_NILFPTR ;
+  else if (mptr->mhptr == NULL) matrix_errno = MAT_NOMHD_FILE_OBJECT ;
+  else if (data->shptr == NULL) matrix_errno = MAT_NIL_SHPTR ;
+  else if (data->data_ptr == NULL) matrix_errno = MAT_NIL_DATA_PTR ;
+  if (matrix_errno != OK) return (ERROR) ;
+  return  write_host_data(mptr, matnum, data);
+} 
+
+int write_host_data(MatrixFile *mptr, int matnum, MatrixData *data) {
+  struct MatDir matdir, dir_entry ;
+  Image_subheader *imagesub ;
+  int   status, blkno, nblks ;
+  
+  matrix_errno = MAT_OK;
+  matrix_errtxt[0] = '\0';
+  status = OK ;
+  nblks = (data->data_size+511)/512;
+  
+  if (matrix_find(mptr, matnum, &matdir) == ERROR) {
+    blkno = mat_enter(mptr->fptr, mptr->mhptr, matnum, nblks) ;
+    if( blkno == ERROR ) return( ERROR );
+    dir_entry.matnum = matnum ;
+    dir_entry.strtblk = blkno ;
+    
+    /*le 24 Avril 2001, j'ai enleve le -1*/
+    dir_entry.endblk = dir_entry.strtblk + nblks /*- 1*/ ;
+    dir_entry.matstat = 1 ;
+    insert_mdir(dir_entry, mptr->dirlist) ;
+    matdir = dir_entry ;
+  }
+  
+  imagesub = (Image_subheader *) data->shptr ;
+  if (imagesub == NULL) {
+    imagesub = (Image_subheader *) calloc(1, MatBLKSIZE);
+    data->shptr = (caddr_t)imagesub;
+  }                                                     /* use MatrixData info */
+  imagesub->x_pixel_size = data->pixel_size;
+  imagesub->y_pixel_size = data->y_size;
+  imagesub->z_pixel_size = data->z_size;
+  imagesub->num_dimensions = 3;
+  imagesub->x_dimension = data->xdim;
+  imagesub->y_dimension = data->ydim;
+  imagesub->z_dimension = data->zdim;
+  imagesub->image_max = (int)(data->data_max/data->scale_factor);
+  imagesub->image_min = (int)(data->data_min/data->scale_factor);
+  imagesub->scale_factor = data->scale_factor;
+  imagesub->data_type = data->data_type;
+  if( mat_write_image_subheader(mptr->fptr,mptr->mhptr,matdir.strtblk, imagesub) == ERROR ) return( ERROR );
+  status = write_matrix_data(mptr->fptr, matdir.strtblk+1, nblks, data->data_ptr, imagesub->data_type) ;
+  if( status == ERROR ) return( ERROR );
+  return(status) ;
+}
+
+int matrix_find(MatrixFile *matfile, int matnum,struct MatDir *matdir) {
+  MatDirNode    *node ;
+  
+  matrix_errno = MAT_OK;
+  matrix_errtxt[0] = '\0';
+  if (matfile == NULL) return(ERROR) ;
+  if (matfile->dirlist == NULL) return(ERROR) ;   
+  node = matfile->dirlist->first ;
+  while (node != NULL)
+    {
+      if (node->matnum == matnum)
+	{
+	  matdir->matnum = node->matnum ;
+	  matdir->strtblk = node->strtblk ;
+	  matdir->endblk = node->endblk ;
+	  matdir->matstat = node->matstat ;
+	  break ;
+	}
+      node = node->next ;
+    }
+  if (node != NULL) return(OK) ;
+  else return(ERROR) ;
+}
+
+int mat_enter(FILE *fptr, Main_header *mhptr, int matnum, int nblks) {
+  int dirblk, dirbufr[128], i, nxtblk, busy, oldsize;
+  short sw_version = mhptr->sw_version;
+  
+  matrix_errno = MAT_OK;
+  matrix_errtxt[0] = '\0';
+  dirblk = MatFirstDirBlk;
+  if( fseek(fptr, 0, 0) ) return( ERROR );
+  /*
+   * nfs locks are very time consuming lockf( fileno(fptr), F_LOCK, 0);
+   */
+  if (read_matrix_data(fptr, dirblk, 1, (char *) dirbufr, SunLong) == ERROR) return (ERROR);
+  
+  busy = 1;
+  while (busy) {
+    nxtblk = dirblk + 1;
+    for (i = 4; i < 128; i += 4) {
+      if (dirbufr[i] == 0) {
+	busy = 0;
+	break;
+      } else if (dirbufr[i] == matnum) {
+	oldsize = dirbufr[i + 2] - dirbufr[i + 1] + 1;
+	if (oldsize < nblks) {
+	  dirbufr[i] = 0xFFFFFFFF;
+	  write_matrix_data(fptr, dirblk, 1, (char*)dirbufr, SunLong);
+	  nxtblk = dirbufr[i + 2] + 1;
+	} else {
+	  nxtblk = dirbufr[i + 1];
+	  dirbufr[0]++;
+	  dirbufr[3]--;
+	  busy = 0;
+	  break;
+	}
+      } else {
+	nxtblk = dirbufr[i + 2] + 1;
+      }
+    }
+    if (!busy) break;
+    if (dirbufr[1] != MatFirstDirBlk) {
+      dirblk = dirbufr[1];
+      if (read_matrix_data(fptr, dirblk, 1, (char *) dirbufr, SunLong) == ERROR) return (ERROR);
+    } else {
+      dirbufr[1] = nxtblk;
+      if (write_matrix_data(fptr, dirblk, 1, (char *) dirbufr, SunLong) == ERROR) return (ERROR);
+      
+      dirbufr[0] = 31;
+      dirbufr[1] = MatFirstDirBlk;
+      dirbufr[2] = dirblk;
+      dirbufr[3] = 0;
+      dirblk = nxtblk;
+      for (i = 4; i < 128; i++)
+	dirbufr[i] = 0;
+    }
+  }
+  dirbufr[i] = matnum;
+  dirbufr[i + 1] = nxtblk;
+  dirbufr[i + 2] = nxtblk + nblks;
+  dirbufr[i + 3] = 1;
+  dirbufr[0]--;
+  dirbufr[3]++;
+  if (write_matrix_data(fptr, dirblk, 1, (char*)dirbufr, SunLong) == ERROR) return (ERROR);
+  
+  if( fseek(fptr, 0, 0) ) return( ERROR );
+  /*
+   * nfs locks are very time consuming lockf( fileno(fptr), F_UNLOCK, 0);
+   */
+  return (nxtblk);
+}
+
+int insert_mdir(struct MatDir matdir, MatDirList *dirlist) {
+  MatDirNode    *node ;
+  
+  matrix_errno = MAT_OK;
+  matrix_errtxt[0] = '\0';
+  if (dirlist == NULL)
+    {
+      dirlist = (MatDirList *) malloc(sizeof(MatDirList)) ;
+      if (dirlist == NULL) return(ERROR) ;
+      dirlist->nmats = 0 ;
+      dirlist->first = NULL ;
+      dirlist->last = NULL ;
+    }
+  node = (MatDirNode *) malloc(sizeof(MatDirNode)) ;
+  if (node == NULL) return(ERROR) ;
+  
+  node->matnum = matdir.matnum ;
+  node->strtblk = matdir.strtblk ;
+  node->endblk = matdir.endblk ;
+  node->matstat = matdir.matstat;
+  node->next = NULL ;
+  
+  if (dirlist->first == NULL)     /* if list was empty, add first node */
+    {
+      dirlist->first = node ;
+      dirlist->last = node ;
+      dirlist->nmats = 1 ;
+    }
+  else
+    {
+      (dirlist->last)->next = node ;
+      dirlist->last = node ;
+      ++(dirlist->nmats) ;
+    }
+  return OK;
+}
+
+int mat_write_image_subheader(FILE *fptr, Main_header *mhptr,int blknum, Image_subheader *header) {
+  char buf[MatBLKSIZE];
+  map_image_header(buf, header);
+  return mat_wblk(fptr, blknum, buf, 1);
+}
+
+int map_image_header(char *buf, Image_subheader *header) {
+  int i = 0;
+  bufWrite_s(header->data_type, buf, &i);
+  bufWrite_s(header->num_dimensions, buf, &i);
+  bufWrite_s(header->x_dimension, buf, &i);
+  bufWrite_s(header->y_dimension, buf, &i);
+  bufWrite_s(header->z_dimension, buf, &i);
+  bufWrite_f(header->z_offset, buf, &i);
+  bufWrite_f(header->x_offset, buf, &i);
+  bufWrite_f(header->y_offset, buf, &i);
+  bufWrite_f(header->recon_zoom, buf, &i);
+  bufWrite_f(header->scale_factor, buf, &i);
+  bufWrite_s(header->image_min, buf, &i);
+  bufWrite_s(header->image_max, buf, &i);
+  bufWrite_f(header->x_pixel_size, buf, &i);
+  bufWrite_f(header->y_pixel_size, buf, &i);
+  bufWrite_f(header->z_pixel_size, buf, &i);
+  bufWrite_u(header->frame_duration, buf, &i);
+  bufWrite_u(header->frame_start_time, buf, &i);
+  bufWrite_s(header->filter_code, buf, &i);
+  bufWrite_f(header->x_resolution, buf, &i);
+  bufWrite_f(header->y_resolution, buf, &i);
+  bufWrite_f(header->z_resolution, buf, &i);
+  bufWrite_f(header->num_r_elements, buf, &i);
+  bufWrite_f(header->num_angles, buf, &i);
+  bufWrite_f(header->z_rotation_angle, buf, &i);
+  bufWrite_f(header->decay_corr_fctr, buf, &i);
+  bufWrite_i(header->processing_code, buf, &i);
+  bufWrite_u(header->gate_duration, buf, &i);
+  bufWrite_i(header->r_wave_offset, buf, &i);
+  bufWrite_i(header->num_accepted_beats, buf, &i);
+  bufWrite_f(header->filter_cutoff_frequency, buf, &i);
+  bufWrite_f(header->filter_resolution, buf, &i);
+  bufWrite_f(header->filter_ramp_slope, buf, &i);
+  bufWrite_s(header->filter_order, buf, &i);
+  bufWrite_f(header->filter_scatter_fraction, buf, &i);
+  bufWrite_f(header->filter_scatter_slope, buf, &i);
+  bufWrite(header->annotation, buf, &i, 40);
+  bufWrite_f(header->mt_1_1, buf, &i);
+  bufWrite_f(header->mt_1_2, buf, &i);
+  bufWrite_f(header->mt_1_3, buf, &i);
+  bufWrite_f(header->mt_2_1, buf, &i);
+  bufWrite_f(header->mt_2_2, buf, &i);
+  bufWrite_f(header->mt_2_3, buf, &i);
+  bufWrite_f(header->mt_3_1, buf, &i);
+  bufWrite_f(header->mt_3_2, buf, &i);
+  bufWrite_f(header->mt_3_3, buf, &i);
+  bufWrite_f(header->rfilter_cutoff, buf, &i);
+  bufWrite_f(header->rfilter_resolution, buf, &i);
+  bufWrite_s(header->rfilter_code, buf, &i);
+  bufWrite_s(header->rfilter_order, buf, &i);
+  bufWrite_f(header->zfilter_cutoff, buf, &i);
+  bufWrite_f(header->zfilter_resolution, buf, &i);
+  bufWrite_s(header->zfilter_code, buf, &i);
+  bufWrite_s(header->zfilter_order, buf, &i);
+  bufWrite_f(header->mt_1_4, buf, &i);
+  bufWrite_f(header->mt_2_4, buf, &i);
+  bufWrite_f(header->mt_3_4, buf, &i);
+  bufWrite_s(header->scatter_type, buf, &i);
+  bufWrite_s(header->recon_type, buf, &i);
+  bufWrite_s(header->recon_views, buf, &i);
+  return 1;
+}
+
+int matrix_close(MatrixFile *mptr) {
+  int status = OK;
+  matrix_errno = MAT_OK;
+  if (mptr->fname) strcpy(matrix_errtxt,mptr->fname);
+  else matrix_errtxt[0] = '\0';
+  if (mptr == NULL) return status;
+  if (mptr->mhptr != NULL) free(mptr->mhptr) ;
+  if (mptr->dirlist != NULL) matrix_freelist(mptr->dirlist) ;
+  if (mptr->fptr) status = fclose(mptr->fptr);
+  if (mptr->fname) free(mptr->fname);
+  free(mptr);
+  return status;
+}
+
+int matrix_freelist(MatDirList *matdirlist) {
+  MatDirNode    *node, *next ;
+  
+  if (matdirlist == NULL) return OK;
+  if (matdirlist->first != NULL) {
+    node = matdirlist->first ;
+    do {
+      next = node->next ;
+      free(node) ;
+      node = next ;
+    }
+    while(next != NULL) ;
+  }
+  free(matdirlist) ;
+  return OK;
+}
+
+
+int mat_numcod(int frame, int plane, int gate, int data, int bed) {
+  return ((frame)|((bed&0xF)<<12)|((plane&0xFF)<<16)|(((plane&0x300)>>8)<<9)|
+	  ((gate&0x3F)<<24)|((data&0x3)<<30)|((data&0x4)<<9));
+}
+
+void swaw( short *from, short *to, int length) {
+  short int temp;
+  int i;
+  
+  for (i=0;i<length; i+=2)
+    {  temp = from[i+1];
+    to[i+1]=from[i];
+    to[i] = temp;
+    }
+}
+
+int mat_close(FILE *fptr) {
+  matrix_errno = MAT_OK;
+  matrix_errtxt[0] = '\0';
+  return fclose( fptr);
+}
+
+int mat_rblk(FILE *fptr, int blkno, char *bufr, int nblks) {
+  int err;
+  
+  matrix_errno = MAT_OK;
+  matrix_errtxt[0] = '\0';
+  if( fseek( fptr, (blkno-1)*MatBLKSIZE, 0) ) return( ERROR );
+  err = fread( bufr, 1, nblks*MatBLKSIZE, fptr);
+  if( err == ERROR ) {
+    return( ERROR );
+  }
+  /*  some applications write pixel instead of block count
+      ==> check if byte count less than (nblks-1) (M. Sibomana 23-oct-1997) */
+  else if( err < (nblks-1)*MatBLKSIZE ) {
+    matrix_errno = MAT_READ_ERROR;
+    return( ERROR );
+  }
+  return( 0 );
+}
diff --git a/conversion/minctoecat/ecat_write.h b/conversion/minctoecat/ecat_write.h
new file mode 100644
--- /dev/null
+++ b/conversion/minctoecat/ecat_write.h
@@ -0,0 +1,227 @@
+#include <stdio.h> 
+#include <stdlib.h> 
+
+typedef enum { ECAT6, ECAT7, Interfile } FileFormat;
+
+typedef enum {
+  MAT_OK,
+  MAT_READ_ERROR,
+  MAT_WRITE_ERROR,
+  MAT_INVALID_DIRBLK,
+  MAT_ACS_FILE_NOT_FOUND,
+  MAT_INTERFILE_OPEN_ERR,
+  MAT_FILE_TYPE_NOT_MATCH,
+  MAT_READ_FROM_NILFPTR,
+  MAT_NOMHD_FILE_OBJECT,
+  MAT_NIL_SHPTR,
+  MAT_NIL_DATA_PTR,
+  MAT_MATRIX_NOT_FOUND,
+  MAT_UNKNOWN_FILE_TYPE,
+  MAT_ACS_CREATE_ERR,
+  MAT_BAD_ATTRIBUTE,
+  MAT_BAD_FILE_ACCESS_MODE,
+  MAT_INVALID_DIMENSION,
+  MAT_NO_SLICES_FOUND,
+  MAT_INVALID_DATA_TYPE,
+  MAT_INVALID_MBED_POSITION
+} MatrixErrorCode;
+
+typedef enum {
+	NoData, Sinogram, PetImage, AttenCor, Normalization,
+	PolarMap, ByteVolume, PetVolume, ByteProjection,
+	PetProjection, ByteImage, Short3dSinogram, Byte3dSinogram, Norm3d,
+	Float3dSinogram,InterfileImage, NumDataSetTypes
+} DataSetType;
+
+typedef enum {
+  UnknownMatDataType, ByteData, VAX_Ix2, VAX_Ix4,
+  VAX_Rx4, IeeeFloat, SunShort, SunLong, NumMatrixDataTypes, ColorData,
+  BitData
+} MatrixDataType;
+
+MatrixErrorCode matrix_errno;
+
+char matrix_errtxt[132];
+
+typedef struct XMAIN_HEAD {
+  char magic_number[14];
+  char original_file_name[32];
+  short sw_version;
+  short system_type;
+  short file_type;
+  char serial_number[10];
+  short align_0;						/* 4 byte alignment purpose */
+  unsigned int scan_start_time;
+  char isotope_code[8];
+  float isotope_halflife;
+  char radiopharmaceutical[32];
+  float gantry_tilt;
+  float gantry_rotation;
+  float bed_elevation;
+  float intrinsic_tilt;
+  short wobble_speed;
+  short transm_source_type;
+  float distance_scanned;
+  float transaxial_fov;
+  short angular_compression;
+  short coin_samp_mode;
+  short axial_samp_mode;
+  short align_1;
+  float calibration_factor;
+  short calibration_units;
+  short calibration_units_label;
+  short compression_code;
+  char study_name[12];
+  char patient_id[16];
+  char patient_name[32];
+  char patient_sex[1];
+  char patient_dexterity[1];
+  float patient_age;
+  float patient_height;
+  float patient_weight;
+  int patient_birth_date;
+  char physician_name[32];
+  char operator_name[32];
+  char study_description[32];
+  short acquisition_type;
+  short patient_orientation;
+  char facility_name[20];
+  short num_planes;
+  short num_frames;
+  short num_gates;
+  short num_bed_pos;
+  float init_bed_position;
+  float bed_offset[15];
+  float plane_separation;
+  short lwr_sctr_thres;
+  short lwr_true_thres;
+  short upr_true_thres;
+  char user_process_code[10];
+  short acquisition_mode;
+  short align_2;
+  float bin_size;
+  float branching_fraction;
+  unsigned int dose_start_time;
+  float dosage;
+  float well_counter_factor;
+  char data_units[32];
+  short septa_state;
+  short align_3;
+} Main_header;
+
+typedef struct XIMAGE_SUB {
+  short data_type;
+  short num_dimensions;
+  short x_dimension;
+  short y_dimension;
+  short z_dimension;
+  short align_0;
+  float z_offset;
+  float x_offset;
+  float y_offset;
+  float recon_zoom;
+  float scale_factor;
+  short image_min;
+  short image_max;
+  float x_pixel_size;
+  float y_pixel_size;
+  float z_pixel_size;
+  unsigned int frame_duration;
+  unsigned int frame_start_time;
+  short filter_code;
+  short align_1;
+  float x_resolution;
+  float y_resolution;
+  float z_resolution;
+  float num_r_elements;
+  float num_angles;
+  float z_rotation_angle;
+  float decay_corr_fctr;
+  int processing_code;
+  unsigned int gate_duration;
+  int r_wave_offset;
+  int num_accepted_beats;
+  float filter_cutoff_frequency;
+  float filter_resolution;
+  float filter_ramp_slope;
+  short filter_order;
+  short align_2;
+  float filter_scatter_fraction;
+  float filter_scatter_slope;
+  char annotation[40];
+  float mt_1_1;
+  float mt_1_2;
+  float mt_1_3;
+  float mt_2_1;
+  float mt_2_2;
+  float mt_2_3;
+  float mt_3_1;
+  float mt_3_2;
+  float mt_3_3;
+  float rfilter_cutoff;
+  float rfilter_resolution;
+  short rfilter_code;
+  short rfilter_order;
+  float zfilter_cutoff;
+  float zfilter_resolution;
+  short zfilter_code;
+  short zfilter_order;
+  float mt_1_4;
+  float mt_2_4;
+  float mt_3_4;
+  short scatter_type;
+  short recon_type;
+  short recon_views;
+  short align_3;
+} Image_subheader;
+
+typedef struct matdirnode {
+  int		matnum ;
+  int		strtblk ;
+  int		endblk ;
+  int		matstat ;
+  struct matdirnode *next ;
+} MatDirNode ;
+
+typedef struct matdirlist {
+  int	nmats ;
+  MatDirNode *first ;
+  MatDirNode *last ;
+} MatDirList ;
+
+typedef struct matrix_file {
+  char		*fname ;	
+  Main_header	*mhptr ;	
+  MatDirList	*dirlist ;	
+  FILE		*fptr ;		
+  int		acs ;		
+  FileFormat file_format;
+  char **interfile_header;
+} MatrixFile;
+
+typedef struct matrixdata {
+  int		matnum ;	/* matrix number */
+  MatrixFile	*matfile ;	/* pointer to parent */
+  DataSetType	mat_type ;	/* type of matrix? */
+  MatrixDataType	data_type ;	/* type of data */
+  caddr_t		shptr ;		/* pointer to sub-header */
+  caddr_t		data_ptr ;	/* pointer to data */
+  int		data_size ;	/* size of data in bytes */
+  int		xdim;		/* dimensions of data */
+  int		ydim;		/* y dimension */
+  int		zdim;		/* for volumes */
+  float		scale_factor ;	/* valid if data is int? */
+  float		pixel_size;	/* xdim data spacing (cm) */
+  float		y_size;		/* ydim data spacing (cm) */
+  float		z_size;		/* zdim data spacing (cm) */
+  float		data_min;	/* min value of data */
+  float		data_max;	/* max value of data */
+  float       x_origin;       /* x origin of data */
+  float       y_origin;       /* y origin of data */
+  float       z_origin;       /* z origin of data */
+} MatrixData ;
+
+MatrixFile *matrix_create(const char *fname, Main_header * proto_mhptr);
+int matrix_write(MatrixFile *mptr, int matnum, MatrixData *data);
+int matrix_close(MatrixFile *mptr);
+int mat_numcod(int frame, int plane, int gate, int data, int bed);
diff --git a/conversion/minctoecat/machine_indep.c b/conversion/minctoecat/machine_indep.c
new file mode 100644
--- /dev/null
+++ b/conversion/minctoecat/machine_indep.c
@@ -0,0 +1,415 @@
+#include <stdlib.h>
+#include <string.h>
+#include "ecat_write.h"
+
+#define OK 0
+#define ERROR -1
+
+#ifdef _WIN32
+u_short ntohs(u_short us) {
+	u_char *p =  (u_char*)&us;
+	return ((u_short)p[1] + (p[0] >> 8));
+}
+unsigned long ntohl(unsigned long ul) {
+	u_char *p = (u_char*)&ul;
+    return ((unsigned long)p[3] + (p[2] >> 8) + (p[1] >> 16) + (p[0] >> 24));
+}
+#endif
+
+
+#if defined(__STDC__)
+void SWAB(const void *from, void *to, int length)
+#else
+void SWAB( from, to, length)
+char *from, *to;
+int length;
+#endif
+{
+	if (ntohs(1) == 1) swab(from, to, length);
+	else memcpy(to,from,length);
+}
+
+void SWAW ( from, to, length)
+#if defined(__STDC__)
+const short *from;
+#else
+short *from;
+#endif
+short *to;
+int length;
+{
+	if (ntohs(1) == 1) swaw((short*)from,to,length);
+	else memcpy(to,from,length*2);
+} 
+
+float vaxftohf( bufr, off)
+unsigned short *bufr;
+int off;
+{
+	unsigned int sign_exp, high, low, mantissa, ret;
+	unsigned u = (bufr[off+1] << 16) + bufr[off];
+	
+	if (u == 0) return 0.0;	
+	sign_exp = u & 0x0000ff80;
+	sign_exp = (sign_exp - 0x0100) & 0xff80; 
+	high = u & 0x0000007f;
+	low  = u & 0xffff0000;
+	mantissa = (high << 16) + (low >> 16);
+	sign_exp = sign_exp << 16;
+	ret = sign_exp + mantissa;
+	return *(float*)(&ret);
+}
+
+#if defined(__alpha) || defined(_WIN32) /* LITTLE_ENDIAN : alpha, intel */
+ftovaxf(f, bufr)
+float f;
+unsigned short *bufr;
+{
+	unsigned *u, sign_exp, low, high, mantissa, ret;
+	float f_tmp = f;
+
+	u = (unsigned*)(&f_tmp);
+	if (u == 0)  {
+		bufr[0]	= bufr[1] = 0;
+		return;
+	}
+	sign_exp = *u & 0xff800000;
+	sign_exp = sign_exp >> 16;
+	sign_exp = (sign_exp + 0x0110) & 0xff80; 
+	low   = *u & 0x0000ffff;
+	high  = *u & 0x007f0000;
+	mantissa = (high >> 16) + (low << 16);
+	ret = sign_exp + mantissa;
+	bufr[0] = ret;
+	bufr[1] =  ret >>16;
+}
+#else  /* BIG ENDIAN : sun hp sgi*/
+ftovaxf(orig,number)
+  unsigned short number[2];
+  float orig;
+{
+
+  	/* convert from sun float to vax float */
+
+  	union {
+	 	  unsigned short t[2]; 
+		  float t4;
+	      } test;
+	unsigned short int exp;
+
+	number[0] = 0;
+	number[1] = 0;
+
+	test.t4 = orig;
+	if (test.t4 == 0.0) return;
+
+	number[1] = test.t[1];
+
+	exp = ((test.t[0] & 0x7f00) + 0x0100) & 0x7f00;
+	test.t[0] = (test.t[0] & 0x80ff) + exp;
+
+	number[0] = test.t[0];
+
+}
+#endif /* LITTLE VS BIG ENDIAN*/
+
+int file_data_to_host(dptr, nblks, dtype)
+char *dptr;
+int nblks, dtype;
+{
+	int i, j;
+	char *tmp = NULL;
+
+
+	matrix_errno = 0;
+	matrix_errtxt[0] = '\0';
+	if ((tmp = malloc(512)) == NULL) return ERROR;
+	switch(dtype)
+	{
+	case ByteData:
+		break;
+	case VAX_Ix2:
+		if (ntohs(1) == 1) 
+			for (i=0, j=0; i<nblks; i++, j+=512) {
+				swab( dptr+j, tmp, 512);
+				memcpy(dptr+j, tmp, 512);
+			}
+		break;
+	case VAX_Ix4:
+		if (ntohs(1) == 1)
+			for (i=0, j=0; i<nblks; i++, j+=512) {
+				swab(dptr+j, tmp, 512);
+				swaw((short*)tmp, (short*)(dptr+j), 256);
+			}
+		break;
+	case VAX_Rx4:
+	 	if (ntohs(1) == 1) 
+			 for (i=0, j=0; i<nblks; i++, j+=512) {
+				swab( dptr+j, tmp, 512);
+/* remove next line (fix from Yohan.Nuyts@uz.kuleuven.ac.be, 28-oct-97)
+				swaw((short*)tmp, (short*)(dptr+j), 256);
+*/
+			}
+		for (i=0; i<nblks*128; i++)
+			((float *)dptr)[i] = vaxftohf( (unsigned short *)dptr, i*2) ;
+		break;
+	case SunShort:
+		if (ntohs(1) != 1)
+			for (i=0, j=0; i<nblks; i++, j+=512) {
+				swab(dptr+j, tmp, 512);
+				memcpy(dptr+j, tmp, 512);
+			}
+		break;
+	case SunLong:
+	case IeeeFloat:
+		if (ntohs(1) != 1) 
+			for (i=0, j=0; i<nblks; i++, j+=512) {
+				swab(dptr+j, tmp, 512);
+				swaw((short*)tmp, (short*)(dptr+j), 256);
+			}
+		break;
+	default:	/* something else...treat as Vax I*2 */
+		if (ntohs(1) == 1)
+			for (i=0, j=0; i<nblks; i++, j+=512) {
+				swab(dptr+j, tmp, 512);
+				memcpy(dptr+j, tmp, 512);
+			}
+		break;
+	}
+	free(tmp);
+	return OK;
+}
+
+
+read_matrix_data( fptr, strtblk, nblks, dptr, dtype)
+  FILE *fptr;
+  int strtblk, nblks, dtype;
+  char * dptr;
+{
+	int  err;
+
+	err = mat_rblk( fptr, strtblk, dptr, nblks);
+	if (err) return -1;
+	return file_data_to_host(dptr,nblks,dtype);
+}
+
+write_matrix_data( fptr, strtblk, nblks, dptr, dtype)
+FILE *fptr;
+int strtblk, nblks, dtype;
+char *dptr;
+{
+	int error_flag = 0;
+	int i, j, k;
+	char *bufr1 = NULL, *bufr2 = NULL;
+
+	matrix_errno = 0;
+	matrix_errtxt[0] = '\0';
+	if ( (bufr1 = malloc(512)) == NULL) return ERROR;
+	if ( (bufr2 = malloc(512)) == NULL) {
+		free(bufr1);
+		return ERROR;
+	}
+	switch( dtype)
+	{
+	case ByteData:
+		if ( mat_wblk( fptr, strtblk, dptr, nblks) < 0) error_flag++;
+		break;
+	case VAX_Ix2: 
+	default:	/* something else...treat as Vax I*2 */
+		if (ntohs(1) == 1) {
+			for (i=0, j=0; i<nblks && !error_flag; i++, j += 512) {
+				swab( dptr+j, bufr1, 512);
+				memcpy(bufr2, bufr1, 512);
+				if ( mat_wblk( fptr, strtblk+i, bufr2, 1) < 0) error_flag++;
+			}
+		} else if ( mat_wblk( fptr, strtblk, dptr, nblks) < 0) error_flag++;
+		break;
+	case VAX_Ix4:
+		if (ntohs(1) == 1)  {
+			for (i=0, j=0; i<nblks && !error_flag; i++, j += 512) {
+				swab( dptr, bufr1, 512);
+				swaw( (short*)bufr1, (short*)bufr2, 256);
+				if ( mat_wblk( fptr, strtblk+i, bufr2, 1) < 0) error_flag++;
+			} 
+		} else if ( mat_wblk( fptr, strtblk, dptr, nblks) < 0) error_flag++;
+		break;
+	case VAX_Rx4:
+		k = 0;
+		for (i=0; i<nblks; i++) {
+			for (j=0; j<512; j += sizeof(float), k += sizeof(float)) 
+				ftovaxf(*((float*)&dptr[k]),&bufr2[j]);
+			if ( mat_wblk( fptr, strtblk+i, bufr2, 1) < 0) error_flag++;
+		}
+		break;
+	case IeeeFloat:
+	case SunLong:
+		if (ntohs(1) != 1) {
+			for (i=0, j=0; i<nblks && !error_flag; i++, j += 512) {
+				swab( dptr+j, bufr1, 512);
+				swaw( (short*)bufr1, (short*)bufr2, 256);
+				if ( mat_wblk( fptr, strtblk+i, bufr2, 1) < 0) error_flag++;
+			}
+		} else if ( mat_wblk( fptr, strtblk, dptr, nblks) < 0) error_flag++;
+		break;
+	case SunShort:
+		if (ntohs(1) != 1) {
+			for (i=0, j=0; i<nblks && !error_flag; i++, j += 512) {
+				swab( dptr+j, bufr1, 512);
+				memcpy(bufr2, bufr1, 512);
+				if ( mat_wblk( fptr, strtblk+i, bufr2, 1) < 0) error_flag++;
+			}
+		} else if ( mat_wblk( fptr, strtblk, dptr, nblks) < 0) error_flag++;
+		break;
+	}
+	free(bufr1);
+	free(bufr2);
+	if (error_flag == 0) return OK;
+	return ERROR;
+}
+
+
+/* buf...(...) - functions to handle copying header data to and from a buffer
+   in the most type safe way possible; note that i is incremented
+   by the size of the item copied so these functions must be
+   called in the right order
+*/
+
+
+void bufWrite(s, buf, i, len)
+char *s, *buf;
+int *i, len;
+{
+   strncpy(&buf[*i], s, len);
+    *i += len;
+}
+
+#ifdef __STDC__
+void bufWrite_s(short val, char *buf, int *i)
+#else
+void bufWrite_s(val, buf, i)
+short val;
+char *buf;
+int *i;
+#endif
+{
+	union { short s; char b[2]; } tmp;
+	tmp.s = val;
+	if (ntohs(1) != 1) swab(tmp.b,&buf[*i],2);
+    else memcpy(&buf[*i], tmp.b, sizeof(short));
+    *i += sizeof(short);
+}
+
+void bufWrite_i(val, buf, i)
+int val, *i;
+char *buf;
+{
+	union { int i; char b[4]; } tmp;
+	union { short s[2]; char b[4]; } tmp1;
+	tmp.i = val;
+	if (ntohs(1) != 1) {
+		swab(tmp.b,tmp1.b,4);
+		swaw(tmp1.s,(short*)&buf[*i],2);
+	} else memcpy(&buf[*i], tmp.b, sizeof(int));
+    *i += sizeof(int);
+}
+
+void bufWrite_u(val, buf, i)
+unsigned int val;
+int *i;
+char *buf;
+{
+	union { int u; char b[4]; } tmp;
+	union { short s[2]; char b[4]; } tmp1;
+	tmp.u = val;
+	if (ntohs(1) != 1) {
+		swab(tmp.b,tmp1.b,4);
+		swaw(tmp1.s,(short*)&buf[*i],2);
+	} else memcpy(&buf[*i], tmp.b, sizeof(unsigned int));
+    *i += sizeof(unsigned int);
+}
+
+#ifdef __STDC__
+void bufWrite_f(float val, char *buf, int *i)
+#else
+void bufWrite_f(val, buf, i)
+float val;
+char *buf;
+int *i;
+#endif
+{
+	union { float f; char b[4]; } tmp;
+	union { short s[2]; char b[4]; } tmp1;
+	tmp.f = val;
+	if (ntohs(1) != 1) {
+		swab(tmp.b,tmp1.b,4);
+		swaw(tmp1.s,(short*)&buf[*i],2);
+	} else memcpy(&buf[*i], tmp.b, sizeof(float));
+    *i += sizeof(float);
+}
+
+void bufRead(s, buf, i, len)
+char *s, *buf;
+int *i, len;
+{
+    strncpy(s, &buf[*i], len);
+    *i += len;
+}
+
+void bufRead_s(val, buf, i)
+short* val;
+char* buf;
+int* i;
+{
+	union { short s; u_char b[2]; } tmp, tmp1;
+	memcpy(tmp.b,&buf[*i],2);
+	if (ntohs(1) != 1) {
+		swab((char*)tmp.b,(char*)tmp1.b,2);
+		*val = tmp1.s;
+	} else *val = tmp.s;
+    *i += sizeof(short);
+}
+
+void bufRead_i(val, buf, i)
+int* val;
+char* buf;
+int* i;
+{
+	union {int i; u_char b[4]; } tmp, tmp1;
+	memcpy(tmp1.b,&buf[*i],4);
+	if (ntohs(1) != 1) {
+		swab((char*)tmp1.b,(char*)tmp.b,4);
+		swaw((short*)tmp.b,(short*)tmp1.b,2);
+	}
+	*val = tmp1.i;
+    *i += sizeof(int);
+}
+
+void bufRead_u(val, buf, i)
+unsigned int* val;
+char* buf;
+int* i;
+{
+	union {unsigned int u; u_char b[4]; } tmp, tmp1;
+	memcpy(tmp1.b,&buf[*i],4);
+	if (ntohs(1) != 1) {
+		swab((char*)tmp1.b,(char*)tmp.b,4);
+		swaw((short*)tmp.b,(short*)tmp1.b,2);
+	}
+	*val = tmp1.u;
+    *i += sizeof(unsigned int);
+}
+
+void bufRead_f(val, buf, i)
+float* val;
+char* buf;
+int* i;
+{
+	union {float f; u_char b[2]; } tmp, tmp1;
+    memcpy(tmp1.b, &buf[*i], sizeof(float));
+	if (ntohs(1) != 1) {
+		swab((char*)tmp1.b,(char*)tmp.b,4);
+		swaw((short*)tmp.b,(short*)tmp1.b,2);
+	}
+	*val = tmp1.f;
+    *i += sizeof(float);
+}
diff --git a/conversion/minctoecat/machine_indep.h b/conversion/minctoecat/machine_indep.h
new file mode 100644
--- /dev/null
+++ b/conversion/minctoecat/machine_indep.h
@@ -0,0 +1,35 @@
+#ifndef machine_indep_h
+#define machine_indep_h
+
+#include <stdio.h>
+
+
+#if defined(__STDC__) || defined(__cplusplus)
+#if defined(__cplusplus)
+extern "C" {
+#endif
+void SWAB(const void *from, void *to, int length);
+int file_data_to_host(char *dptr, int nblks, int dtype);
+int read_matrix_data( FILE *fptr, int strtblk, int nblks,
+					 char *dptr, int dtype);
+int write_matrix_data( FILE *fptr, int strtblk, int nblks,
+					 char *dptr, int dtype);
+void bufWrite(char* s, char* buf, int* i, int len);
+void bufWrite_s(short val, char* buf, int* i);
+void bufWrite_i(int val, char* buf, int* i);
+void bufWrite_u(unsigned int val, char* buf, int* i);
+void bufWrite_f(float val, char* buf, int* i);
+void bufRead(char* s, char* buf, int* i, int len);
+void bufRead_s(short*, char* buf, int* i);
+void bufRead_i(int*, char* buf, int* i);
+void bufRead_u(unsigned int*, char* buf, int* i);
+void bufRead_f(float*, char* buf, int* i);
+#if defined(__cplusplus)
+}
+#endif /* __cpluplus */
+#else /* __STDC__ */
+extern void bufWrite(), bufWrite_s(), bufWrite_i(), bufWrite_f();
+extern void bufRead(), bufRead_s(), bufRead_i(), bufRead_f();
+#endif  /* __STDC__ */
+
+#endif  /* machine_indep_h */
diff --git a/conversion/minctoecat/minctoecat.c b/conversion/minctoecat/minctoecat.c
new file mode 100644
--- /dev/null
+++ b/conversion/minctoecat/minctoecat.c
@@ -0,0 +1,1007 @@
+/* ----------------------------- MNI Header -----------------------------------
+@NAME       : minctoecat
+@INPUT      : argc, argv - command line arguments
+@OUTPUT     : (none)
+@RETURNS    : error status
+@DESCRIPTION: Converts a minc format file to a CTI ECAT file.
+@METHOD     : 
+@GLOBALS    : 
+@CALLS      : 
+@CREATED    : January 31, 2005 (Anthonin Reilhac)
+@MODIFIED   : 
+@COPYRIGHT  :
+              Copyright 2005 Anthonin Reilhac, McConnell Brain Imaging Centre, 
+              Montreal Neurological Institute, McGill University.
+              Permission to use, copy, modify, and distribute this
+              software and its documentation for any purpose and without
+              fee is hereby granted, provided that the above copyright
+              notice appear in all copies.  The author and McGill University
+              make no representations about the suitability of this
+              software for any purpose.  It is provided "as is" without
+              express or implied warranty.
+---------------------------------------------------------------------------- */
+
+
+#include <stdlib.h>
+#include <float.h>
+#include <math.h>
+#include <minc.h>
+#include <time.h>
+#include <ParseArgv.h>
+#include <volume_io.h>  
+#include "ecat_write.h"    
+#define ShortMax 32767
+#define BECQUEREL_PER_NCURIE 37
+
+typedef enum MODALITY {
+  UNKNOWN_MODALITY,
+  PET,
+  MRI,
+  NUM_MODALITY
+} modality;
+
+typedef enum DATA_UNIT {
+  UNKNOWN_DATA_UNIT,
+  LABEL,
+  NCIPERCC
+} data_unit;
+
+
+typedef struct MINC_INFO {
+  int dim;
+  long x_size;
+  long y_size;
+  long z_size;
+  long time_length;
+  double x_step;
+  double y_step;
+  double z_step;
+  int x_start_flag;
+  int y_start_flag;
+  int z_start_flag;
+  double x_start;
+  double y_start;
+  double z_start;
+  double *time_points;
+  double *time_widths;
+  data_unit dunit;
+  modality mod;
+  float isotope_halflife;
+} minc_info;
+
+
+/*Fuction declarations*/
+double decay_correction(double scan_time, double measure_time, double start_time, double half_life);
+minc_info *get_minc_info(char *file);
+void free_minc_info(minc_info *mi);
+void get_patient_info(char *file, Main_header *mh);
+void get_study_info(char *file, Main_header *mh);
+void get_acquisition_info(char *file, Main_header *mh);
+void get_ecat_acquisition_info(char *file, Main_header *mh);
+void get_ecat_main_header_info(char *file, Main_header *mh);
+void get_ecat_subheader_info(char *file, Image_subheader *sh);
+Main_header * init_main_header(char *file, minc_info *mi);
+Image_subheader * init_image_subheader(char *file, minc_info *mi, Main_header *mh);
+void write_ecat_frame(MatrixFile *mf, Image_subheader *sh, short *ptr,int fr, float min, float max);
+void usage_error(char *progname);
+
+int main ( int argc, char **argv) {
+  /* Variables for arguments */
+  static int include_patient_info = TRUE;
+  static int include_study_info = TRUE;
+  static int include_acquisition_info = TRUE;
+  static int include_ecat_acquisition_info = TRUE;
+  static int include_ecat_main_info = TRUE;
+  static int include_ecat_subheader_info = TRUE;
+  static int do_decay_corr_factor = TRUE;
+  static int label_data = FALSE;
+  
+  /* Argument option table */
+  static ArgvInfo argTable[] = {
+    {"-ignore_patient_variable", ARGV_CONSTANT, (char *) FALSE, (char *) &include_patient_info,"Ignore informations from the minc patient variable."},
+    {"-ignore_study_variable", ARGV_CONSTANT, (char *) FALSE, (char *) &include_study_info,"Ignore informations from the minc study variable."},
+    {"-ignore_acquisition_variable", ARGV_CONSTANT, (char *) FALSE, (char *) &include_acquisition_info,"Ignore informations from the minc acquisition variable."},
+    {"-ignore_ecat_acquisition_variable", ARGV_CONSTANT, (char *) FALSE, (char *) &include_ecat_acquisition_info,"Ignore informations from the minc ecat_acquisition variable."},
+    {"-ignore_ecat_main", ARGV_CONSTANT, (char *) FALSE, (char *) &include_ecat_main_info,"Ignore informations from the minc ecat-main variable."},
+    {"-ignore_ecat_subheader_variable", ARGV_CONSTANT, (char *) FALSE, (char *) &include_ecat_subheader_info,"Ignore informations from the minc ecat-subhdr variable."},
+    {"-no_decay_corr_fctr", ARGV_CONSTANT, (char *) FALSE, (char *) &do_decay_corr_factor,"Do not compute the decay correction factors"},
+    {"-label", ARGV_CONSTANT, (char *) TRUE, (char *) &label_data,"Voxel values are treated as integers, scale and calibration factors are set to unity"},
+    {NULL, ARGV_END, NULL, NULL, NULL} 
+  };
+
+  /*other variables*/
+  char *pname; /*name of the present command ->argv[0]*/
+  char *minc_file_name = NULL; /*name of the input file (minc format)*/
+  char *ecat_file_name = NULL; /*name of the output file (to be created into the ecat format*/
+  minc_info *mi = NULL;
+  Volume volume;
+  short int *ecat_short_ptr = NULL;
+  float ecat_scale_factor = 1;
+  progress_struct progress;
+  STRING DimOrder[MAX_DIMENSIONS];
+  MatrixFile *out_matrix_file = NULL;
+  Main_header *out_main_header = NULL;
+  Image_subheader *out_image_subheader = NULL;
+  int fr;
+  int incre = 0;
+  int x_ind, y_ind, z_ind;
+  double cal_factor;  
+
+   /* Check arguments */
+   pname = argv[0];
+   if (ParseArgv(&argc, argv, argTable, 0) || (argc != 3)) {
+      usage_error(pname);
+   }
+
+   /* Get file names */
+   minc_file_name = argv[1];
+   ecat_file_name = argv[2];
+
+  /*getting informations about the dimensions from the minc file*/
+  if((mi = get_minc_info(minc_file_name)) == NULL) {
+    fprintf(stderr, "Can not get informations from %s.\n", minc_file_name);
+    return (1);
+  }
+
+  /*checking the number of dimension*/
+  if((mi->dim != 3) && (mi->dim != 4)) {
+    fprintf(stderr, "input file has not a valid number of dimension (%d), should be either 3 (static file) or 4 (dynamic file)");
+    return (-1);
+  }
+
+  
+  /***************************************************************************************
+   *       filling the ecat header fields with the available informations                *
+   ***************************************************************************************/
+  /*MAIN HEADER: filling compulsory fields*/
+  if((out_main_header = init_main_header(minc_file_name, mi)) == NULL) {
+    fprintf(stderr, "Can not initilize the ecat main header.\n");
+    return (1);
+  }
+  /*additional informations if available and requested*/
+  /*getting patient informations from the MIpatient variable*/
+  
+  if(include_patient_info)
+    get_patient_info(minc_file_name, out_main_header);
+  /*getting study information from the MIstudy variable*/
+  if(include_study_info)
+    get_study_info(minc_file_name, out_main_header);
+  /*getting acquisition information from the MIacquisition variable*/
+  if(include_acquisition_info)
+    get_acquisition_info(minc_file_name, out_main_header);  
+  /*getting acquisition information from the ecat_acquisition variable*/
+  if(include_ecat_acquisition_info)
+    get_ecat_acquisition_info(minc_file_name, out_main_header);
+  /*getting ecat main header informations from the ecat-main variable*/
+  if(include_ecat_main_info)
+    get_ecat_main_header_info(minc_file_name, out_main_header);
+
+  /*SUBHEADER TEMPLATE: filling compulsory fields*/
+ if((out_image_subheader = init_image_subheader(minc_file_name, mi, out_main_header)) == NULL) {
+    fprintf(stderr, "Can not initialize the ecat image subheader.\n");
+    return (1);
+  }
+ /*getting additionnal informations from the ecat-subhdr variable*/
+ if(include_ecat_subheader_info)
+   get_ecat_subheader_info(minc_file_name, out_image_subheader);
+  
+
+  /*writting the main header*/
+  if((out_matrix_file = matrix_create(ecat_file_name, out_main_header)) == NULL) {
+    fprintf(stderr, "cannot create %s \n", ecat_file_name);
+    return(-1);
+  }
+  
+  /*extracting the mincvolume in the order time, X, Y, Z*/
+  if(mi->dim == 4) {
+    DimOrder[0] = MItime;
+    DimOrder[1] = MIzspace;
+    DimOrder[2] = MIyspace;
+    DimOrder[3] = MIxspace;
+  } else {
+    DimOrder[0] = MIzspace;
+    DimOrder[1] = MIyspace;
+    DimOrder[2] = MIxspace;   
+  }
+
+ 
+  /*input the volume*/
+  if(input_volume(minc_file_name,
+		  mi->dim,
+		  DimOrder,
+		  NC_UNSPECIFIED,
+		  FALSE,
+		  1,
+		  1,
+		  TRUE,
+		  &volume,
+		  (minc_input_options *) NULL) != OK) return (1);
+  
+   /*initializing the progress report*/
+  initialize_progress_report(&progress,
+                             FALSE,
+                             mi->time_length,
+                             "Converting data");
+  cal_factor = (mi->dunit == NCIPERCC)?BECQUEREL_PER_NCURIE:1;
+  cal_factor /= out_main_header->calibration_factor;
+
+  /*getting the values*/
+  for(fr = 0; fr < ((mi->time_length)?mi->time_length:1); fr++) {
+    float max_val = 0, min_val = 0;
+    int vx, vy, vz;
+    Real value;
+
+    if((ecat_short_ptr = (short int *)calloc((mi->x_size) * (mi->y_size) * (mi->z_size), sizeof(short int))) == NULL) {
+      fprintf(stderr, "allocation error\n");
+      return 1;
+    }
+    
+    for(vz = 0; vz < mi->z_size; vz++) 
+      for(vy = 0; vy < mi->y_size; vy++) 
+	for(vx = 0; vx < mi->x_size; vx++) {
+	  value = ((mi->time_length)?get_volume_real_value(volume, fr, vz, vy, vx, 0):get_volume_real_value(volume, vz, vy, vx, 0,0)) * cal_factor;
+	  if(value > max_val) max_val = value;
+	  if(value < min_val) min_val = value;
+	}
+    if((mi->dunit != LABEL) && (!label_data))
+      ecat_scale_factor =  ((max_val > fabs(min_val))?max_val:fabs(min_val))/ShortMax;
+
+    for(vz = 0; vz < mi->z_size; vz++) {
+      for(vy = 0; vy < mi->y_size; vy++) {
+	for(vx = 0; vx < mi->x_size; vx++) {
+    	  value = ((mi->time_length)?get_volume_real_value(volume, fr, vz, vy, vx, 0):get_volume_real_value(volume, vz, vy, vx, 0,0));
+	  x_ind = ((mi->x_step > 0)?mi->x_size - 1 - vx:vx);
+	  y_ind = ((mi->y_step > 0)?mi->y_size - 1 - vy:vy);
+	  z_ind = ((mi->z_step > 0)?mi->z_size - 1 - vz:vz);
+	  ecat_short_ptr[IJK(z_ind, y_ind, x_ind, mi->y_size, mi->x_size)] = (short int)ROUND(value * cal_factor/(ecat_scale_factor));
+	}
+      }
+    }
+       
+    /*filling image subheader*/
+    if(mi->dim == 4) {
+      out_image_subheader->frame_start_time = (unsigned int)(mi->time_points[fr] * 1000);
+      out_image_subheader->frame_duration = (unsigned int)(mi->time_widths[fr] * 1000);
+    }
+    if((mi->dunit == NCIPERCC) && (do_decay_corr_factor))
+      out_image_subheader->decay_corr_fctr = decay_correction(mi->time_points[fr],mi->time_widths[fr] , 0.0, mi->isotope_halflife);
+    out_image_subheader->scale_factor = ecat_scale_factor;
+    write_ecat_frame(out_matrix_file, out_image_subheader, ecat_short_ptr, fr, min_val, max_val);
+    free(ecat_short_ptr);
+    ecat_short_ptr = NULL;
+    update_progress_report(&progress, incre);
+    incre++;
+  }
+  free_minc_info(mi);
+  matrix_close(out_matrix_file);
+  free(out_main_header);
+  free(out_image_subheader);
+  
+  terminate_progress_report(&progress);
+  return (0);
+}
+
+
+
+double decay_correction(double scan_time, double measure_time, double start_time, double half_life) {
+  double mean_life;
+  double measure_correction;
+  double decay;
+  
+  /* Check for negative half_life and calculate mean life */
+  if (half_life <= 0.0) return 1.0;
+  mean_life = half_life/ log(2.0);
+  
+  /* Normalize scan time and measure_time */
+  scan_time = (scan_time - start_time) / mean_life;
+  measure_time /= mean_life;
+  
+  /* Calculate correction for decay over measuring time (assuming a
+     constant activity). Check for possible rounding errors. */
+  if ((measure_time*measure_time/2.0) < DBL_EPSILON) {
+    measure_correction = 1.0 - measure_time/2.0;
+  }
+  else {
+    measure_correction = (1.0 - exp(-measure_time)) / fabs(measure_time);
+  }
+  
+  /* Calculate decay */
+  decay = exp(-scan_time) * measure_correction;
+  if (decay<=0.0) decay = DBL_MAX;
+  else decay = 1.0/decay;
+  
+  return decay;
+}
+
+minc_info *get_minc_info(char *file) {
+  int minc_fd; /*minc file descriptor*/
+  minc_info *mi = NULL; /*minc info structures*/
+  int var_id;
+  int num_att;
+  char attname[NC_MAX_NAME+1];
+  char buff[NC_MAX_NAME+1]; 
+  int i;
+
+ /* we first open the netcdf file*/
+  minc_fd = miopen(file, NC_NOWRITE);
+
+  if((mi = (minc_info *)calloc(1, sizeof(minc_info))) == NULL) return NULL;
+
+  /*initlaization*/
+  mi->time_length = 0;
+  mi->mod = UNKNOWN_MODALITY;
+  mi->dunit = UNKNOWN_DATA_UNIT;
+  mi->x_start_flag = 0;
+  mi->y_start_flag = 0;
+  mi->z_start_flag = 0;
+
+  /* first we check out the number of dimension. we suppose that the time dimension is the 4th*/
+  ncinquire(minc_fd, &(mi->dim), NULL, NULL, NULL);
+ 
+  /*getting infos about the x, y and and z sizes and width*/
+  ncdiminq(minc_fd, ncdimid(minc_fd, MIxspace), NULL, &(mi->x_size));
+  ncdiminq(minc_fd, ncdimid(minc_fd, MIyspace), NULL, &(mi->y_size));
+  ncdiminq(minc_fd, ncdimid(minc_fd, MIzspace), NULL, &(mi->z_size)); 
+
+  /*getting information about each dimensions*/
+  /*MIxspace*/
+  var_id = ncvarid(minc_fd, MIxspace);
+  ncvarinq(minc_fd,var_id, NULL, NULL, NULL, NULL, &num_att);
+  for(i = 0; i < num_att; i++) {
+    ncattname(minc_fd,var_id,i,attname);
+    if(strcmp(MIstart, attname) == 0) {
+      mi->x_start_flag = 1;
+      miattget1(minc_fd,var_id, MIstart, NC_DOUBLE, &(mi->x_start));
+    }
+    if(strcmp(MIstep, attname) == 0) 
+      miattget1(minc_fd,var_id, MIstep, NC_DOUBLE, &(mi->x_step));
+  }
+  /*MIyspace*/
+  var_id = ncvarid(minc_fd, MIyspace);
+  ncvarinq(minc_fd,var_id, NULL, NULL, NULL, NULL, &num_att);
+  for(i = 0; i < num_att; i++) {
+    ncattname(minc_fd,var_id,i,attname);
+    if(strcmp(MIstart, attname) == 0) {
+      mi->y_start_flag = 1;
+      miattget1(minc_fd,var_id, MIstart, NC_DOUBLE, &(mi->y_start));
+    }
+    if(strcmp(MIstep, attname) == 0) 
+      miattget1(minc_fd,var_id, MIstep, NC_DOUBLE, &(mi->y_step));
+  }
+
+  /*MIzspace*/
+  var_id = ncvarid(minc_fd, MIzspace);
+  ncvarinq(minc_fd,var_id, NULL, NULL, NULL, NULL, &num_att);
+  for(i = 0; i < num_att; i++) {
+    ncattname(minc_fd,var_id,i,attname);
+    if(strcmp(MIstart, attname) == 0) {
+      mi->z_start_flag = 1;
+      miattget1(minc_fd,var_id, MIstart, NC_DOUBLE, &(mi->z_start));
+    }
+    if(strcmp(MIstep, attname) == 0) 
+      miattget1(minc_fd,var_id, MIstep, NC_DOUBLE, &(mi->z_step));
+  }
+
+  /* if it is a dynamic file, then we ask for the number of frames, the frame durations and start time*/
+ if(mi->dim == 4){
+    long start_time_vector[1];
+    long count_time_vector[1];
+
+    var_id = ncdimid(minc_fd, MItime);
+    ncdiminq(minc_fd, var_id, NULL, &(mi->time_length));
+    if((mi->time_points = (double *) calloc(mi->time_length, sizeof(double))) == NULL) return NULL;
+    if((mi->time_widths = (double *) calloc(mi->time_length, sizeof(double))) == NULL) return NULL;
+    start_time_vector[0] = 0;
+    count_time_vector[0] = mi->time_length;
+
+    mivarget(minc_fd, var_id, start_time_vector, count_time_vector, NC_DOUBLE, MI_SIGNED, mi->time_points);
+    mivarget(minc_fd, ncvarid(minc_fd, MItime_width), start_time_vector, count_time_vector, NC_DOUBLE, MI_SIGNED, mi->time_widths);
+  }
+
+  /*defining the modality*/
+  if(mivar_exists(minc_fd, MIstudy)) {
+    var_id = ncvarid(minc_fd, MIstudy);
+    ncvarinq(minc_fd, var_id, NULL, NULL, NULL, NULL, &num_att);
+    for(i = 0; i < num_att; i++) {
+      ncattname(minc_fd,var_id,i,attname);
+      if(strcmp(MImodality, attname) == 0) { 
+	miattgetstr(minc_fd, var_id, MImodality, NC_MAX_NAME, buff);
+	if(strcmp(buff, MI_PET) == 0) mi->mod = PET;
+	if(strcmp(buff, MI_MRI) == 0) mi->mod = MRI;
+	if(strcmp(buff, MI_LABEL) == 0) mi->dunit = LABEL;
+      }
+    }
+  }
+  if(mivar_exists(minc_fd, MIimagemin)) {
+    var_id = ncvarid(minc_fd, MIimagemin);
+    ncvarinq(minc_fd, var_id, NULL, NULL, NULL, NULL, &num_att);
+    for(i = 0; i < num_att; i++) {
+      ncattname(minc_fd,var_id,i,attname);
+      if(strcmp(MIunits, attname) == 0) {
+	miattgetstr(minc_fd, var_id, MIunits, NC_MAX_NAME, buff);
+	if(strcmp(buff, "nCi/cc") == 0) mi->dunit = NCIPERCC;
+      }
+    }
+  }
+
+  /*getting isotope halflife if available*/
+  if(mivar_exists(minc_fd, MIacquisition)) {
+    var_id = ncvarid(minc_fd, MIacquisition);
+    ncvarinq(minc_fd, var_id, NULL, NULL, NULL, NULL, &num_att);
+    for(i = 0; i < num_att; i++) {
+      ncattname(minc_fd,var_id,i,attname);      
+      if(strcmp(MIradionuclide_halflife, attname) == 0)
+	miattget1(minc_fd, var_id, MIradionuclide_halflife, NC_FLOAT, &(mi->isotope_halflife));
+    }
+  }
+
+  miclose(minc_fd);
+  return mi;
+}
+
+void free_minc_info(minc_info *mi) {
+  if(mi->time_points != NULL) free(mi->time_points);
+  if(mi->time_widths != NULL) free(mi->time_widths);
+}
+void get_patient_info(char *file, Main_header *mh) {
+  int minc_fd; /*minc file descriptor*/
+
+ /* we first open the netcdf file*/
+  minc_fd = miopen(file, NC_NOWRITE);
+
+  if(mivar_exists(minc_fd, MIpatient)) {
+    int var_id;
+    int num_att;
+    int i;
+    
+    var_id = ncvarid(minc_fd, MIpatient);
+    ncvarinq(minc_fd, var_id, NULL, NULL, NULL, NULL, &num_att);
+    for(i = 0; i < num_att; i++) {
+      char attname[NC_MAX_NAME+1];
+      char buffer_val[NC_MAX_NAME+1];
+      
+      ncattname(minc_fd,var_id,i,attname);
+      if(strcmp(MIfull_name, attname) == 0) 
+	miattgetstr(minc_fd, var_id, MIfull_name, 32, mh->patient_name);
+      if(strcmp(MIage, attname) == 0) 
+	miattget1(minc_fd, var_id, MIage, NC_FLOAT, &(mh->patient_age));
+      if(strcmp(MIweight, attname) == 0) 
+	miattget1(minc_fd, var_id, MIweight, NC_FLOAT, &(mh->patient_weight));
+      if(strcmp(MIsize, attname) == 0) 
+	miattget1(minc_fd, var_id, MIsize, NC_FLOAT, &(mh->patient_height));
+      if(strcmp(MIsex, attname) == 0) {
+	miattgetstr(minc_fd, var_id, MIsex, NC_MAX_NAME+1, buffer_val);	
+	if(strcmp(buffer_val, MI_MALE) == 0)
+	  mh->patient_sex[0] = 'M';
+	if(strcmp(buffer_val, MI_FEMALE) == 0)
+	  mh->patient_sex[0] = 'F';
+      }
+      if(strcmp(MIidentification, attname) == 0) 
+	miattgetstr(minc_fd, var_id, MIidentification, 16, mh->patient_id);
+  
+      /*I don't kown how to deal with the patient birth date yet
+	in minc, it is a string, in ecat a int ...
+	I guess this is not important as long as we have the age of the patient
+	Might be filled below if the ecat-header variable exists
+      */
+    }
+  }
+  miclose(minc_fd);
+}
+
+void get_study_info(char *file, Main_header *mh) {
+  int minc_fd; /*minc file descriptor*/
+
+ /* we first open the netcdf file*/
+  minc_fd = miopen(file, NC_NOWRITE);
+
+  if(mivar_exists(minc_fd, MIstudy)) {
+    int var_id;
+    int i;
+    struct tm scan_time;
+    int num_att;
+
+    var_id = ncvarid(minc_fd, MIstudy);
+    ncvarinq(minc_fd, var_id, NULL, NULL, NULL, NULL, &num_att);
+    for(i = 0; i < num_att; i++) {
+      char attname[NC_MAX_NAME+1];
+      
+      ncattname(minc_fd,var_id,i,attname);
+      if(strcmp(MIstart_year, attname) == 0) { 
+	miattget1(minc_fd, var_id, MIstart_year, NC_INT, &scan_time.tm_year);	
+	scan_time.tm_year -= 1900;
+      }
+      if(strcmp(MIstart_month, attname) == 0) {
+	miattget1(minc_fd, var_id, MIstart_month, NC_INT, &scan_time.tm_mon);
+	scan_time.tm_mon--;
+      }
+      if(strcmp(MIstart_day, attname) == 0) 
+	miattget1(minc_fd, var_id, MIstart_day, NC_INT, &scan_time.tm_mday);
+      
+      if(strcmp(MIstart_hour, attname) == 0) 
+	miattget1(minc_fd, var_id, MIstart_hour, NC_INT, &scan_time.tm_hour);
+      
+      if(strcmp(MIstart_minute, attname) == 0) 
+	miattget1(minc_fd, var_id, MIstart_minute, NC_INT, &scan_time.tm_min);
+      
+      if(strcmp(MIstart_seconds, attname) == 0) 
+	miattget1(minc_fd, var_id, MIstart_seconds, NC_INT, &scan_time.tm_sec);
+
+      if(strcmp(MIidentification, attname) == 0) 
+	miattgetstr(minc_fd, var_id, MIidentification, 16, mh->patient_id);
+
+      if(strcmp(MIstudy_id, attname) == 0)
+	miattgetstr(minc_fd, var_id, MIstudy_id, 12, mh->study_name);
+
+      if(strcmp(MIreferring_physician, attname) == 0)
+	miattgetstr(minc_fd, var_id, MIreferring_physician, 32, mh->physician_name);
+
+      if(strcmp(MIoperator, attname) == 0)
+	miattgetstr(minc_fd, var_id, MIoperator, 32, mh->operator_name);      
+    }
+    mh->scan_start_time = mktime(&scan_time);
+  }
+  miclose(minc_fd);
+}
+
+void get_acquisition_info(char *file, Main_header *mh) {
+  int minc_fd; /*minc file descriptor*/
+
+ /* we first open the netcdf file*/
+  minc_fd = miopen(file, NC_NOWRITE);
+
+  if(mivar_exists(minc_fd, MIacquisition)) {
+    int var_id;
+    int num_att;
+    int i;
+    struct tm injection_time;
+    
+    var_id = ncvarid(minc_fd, MIacquisition);
+    ncvarinq(minc_fd, var_id, NULL, NULL, NULL, NULL, &num_att);
+    for(i = 0; i < num_att; i++) {
+      char attname[NC_MAX_NAME+1];
+      char buffer_val[NC_MAX_NAME+1];
+      
+      ncattname(minc_fd,var_id,i,attname);      
+      
+      if(strcmp(MIradionuclide, attname) == 0)
+	miattgetstr(minc_fd, var_id, MIradionuclide, 8, mh->isotope_code);
+
+      if(strcmp(MIradionuclide_halflife, attname) == 0)
+	miattget1(minc_fd, var_id, MIradionuclide_halflife, NC_FLOAT, &(mh->isotope_halflife));
+
+      if(strcmp(MItracer, attname) == 0)
+	miattgetstr(minc_fd, var_id, MItracer, 32, mh->radiopharmaceutical);
+
+      if(strcmp(MIinjection_year, attname) == 0) { 
+	miattget1(minc_fd, var_id, MIinjection_year, NC_INT, &injection_time.tm_year);	
+	injection_time.tm_year -= 1900;
+      }
+      if(strcmp(MIinjection_month, attname) == 0) {
+	miattget1(minc_fd, var_id, MIinjection_month, NC_INT, &injection_time.tm_mon);
+	injection_time.tm_mon--;
+      }
+      if(strcmp(MIinjection_day, attname) == 0) 
+	miattget1(minc_fd, var_id, MIinjection_day, NC_INT, &injection_time.tm_mday);
+      
+      if(strcmp(MIinjection_hour, attname) == 0) 
+	miattget1(minc_fd, var_id, MIinjection_hour, NC_INT, &injection_time.tm_hour);
+      
+      if(strcmp(MIinjection_minute, attname) == 0) 
+	miattget1(minc_fd, var_id, MIinjection_minute, NC_INT, &injection_time.tm_min);
+      
+      if(strcmp(MIinjection_seconds, attname) == 0) 
+	miattget1(minc_fd, var_id, MIinjection_seconds, NC_INT, &injection_time.tm_sec);
+
+      if(strcmp(MIinjection_dose, attname) == 0) 
+	miattget1(minc_fd, var_id, MIinjection_dose, NC_FLOAT, &(mh->dosage));
+
+      if(strcmp(MIdose_units, attname) == 0) 
+	miattgetstr(minc_fd, var_id, MIdose_units, 32, mh->data_units);
+    }
+    mh->dose_start_time = mktime(&injection_time);
+  }
+  miclose(minc_fd);
+}
+
+void get_ecat_acquisition_info(char *file, Main_header *mh) {
+  int minc_fd; /*minc file descriptor*/
+
+ /* we first open the netcdf file*/
+  minc_fd = miopen(file, NC_NOWRITE);
+
+  if(mivar_exists(minc_fd, "ecat_acquisition")) {
+    int var_id;
+    int num_att;
+    int i;
+    char attname[NC_MAX_NAME+1];
+    
+    var_id = ncvarid(minc_fd, "ecat_acquisition");
+    ncvarinq(minc_fd, var_id, NULL, NULL, NULL, NULL, &num_att);
+    for(i = 0; i < num_att; i++) {
+      ncattname(minc_fd,var_id,i,attname);  
+      if(strcmp("septa_retracted", attname) == 0) {
+	char buff[NC_MAX_NAME+1];
+	
+	miattgetstr(minc_fd, var_id, "septa_retracted", NC_MAX_NAME+1, buff);	
+	if(strcmp(buff, MI_TRUE) == 0)
+	  mh->septa_state = 1;
+	if(strcmp(buff, MI_FALSE) == 0)
+	  mh->septa_state = 0;
+      }
+    }
+  }
+  miclose(minc_fd);
+}
+
+void get_ecat_main_header_info(char *file, Main_header *mh) {
+  int minc_fd;
+
+ /* we first open the netcdf file*/
+  minc_fd = miopen(file, NC_NOWRITE);
+
+  if(mivar_exists(minc_fd, "ecat-main")) {
+    int var_id;
+    char buffer[NC_MAX_NAME+1];    
+
+
+    var_id = ncvarid(minc_fd, "ecat-main");
+
+    miattgetstr(minc_fd, var_id, "Magic_Number", 14, mh->magic_number);
+   
+    miattgetstr(minc_fd, var_id, "Original_Filename", 32, mh->original_file_name);
+    
+    miattgetstr(minc_fd, var_id, "System_Type", sizeof(buffer), buffer);
+    sscanf(buffer, "%hd", &(mh->system_type));
+    
+    miattgetstr(minc_fd, var_id, "Serial_Number", 10, mh->serial_number);
+    
+    miattgetstr(minc_fd, var_id, "Scan_Start_Time", sizeof(buffer), buffer);
+    sscanf(buffer, "%u", &(mh->scan_start_time));  
+    
+    miattgetstr(minc_fd, var_id, "Isotope_Name", 8, mh->isotope_code);
+    
+    miattgetstr(minc_fd, var_id, "Isotope_Halflife", sizeof(buffer), buffer);
+    sscanf(buffer, "%f", &(mh->isotope_halflife));  
+    
+    miattgetstr(minc_fd, var_id, "Radiopharmaceutical", 32, mh->radiopharmaceutical);
+    
+    miattgetstr(minc_fd, var_id, "Gantry_Tilt", sizeof(buffer), buffer);
+    sscanf(buffer, "%f", &(mh->gantry_tilt));
+    
+    miattgetstr(minc_fd, var_id, "Gantry_Rotation", sizeof(buffer), buffer);
+    sscanf(buffer, "%f", &(mh->gantry_rotation));
+    
+    miattgetstr(minc_fd, var_id, "Bed_Elevation", sizeof(buffer), buffer);
+    sscanf(buffer, "%f", &(mh->bed_elevation));
+    
+    miattgetstr(minc_fd, var_id, "Intrinsic_Tilt", sizeof(buffer), buffer);
+    sscanf(buffer, "%f", &(mh->intrinsic_tilt));
+    
+    miattgetstr(minc_fd, var_id, "Wobble_Speed", sizeof(buffer), buffer);
+    sscanf(buffer, "%hd", &(mh->wobble_speed));
+    
+    miattgetstr(minc_fd, var_id, "Transm_Source_Type", sizeof(buffer), buffer);
+    sscanf(buffer, "%hd", &(mh->transm_source_type));
+    
+    miattgetstr(minc_fd, var_id, "Distance_Scanned", sizeof(buffer), buffer);
+    sscanf(buffer, "%f", &(mh->distance_scanned));
+
+    miattgetstr(minc_fd, var_id, "Transaxial_Fov", sizeof(buffer), buffer);
+    sscanf(buffer, "%f", &(mh->transaxial_fov));
+    
+    miattgetstr(minc_fd, var_id, "Angular_Compression", sizeof(buffer), buffer);
+    sscanf(buffer, "%hd", &(mh->angular_compression));
+    
+    miattgetstr(minc_fd, var_id, "Coin_Samp_Mode", sizeof(buffer), buffer);
+    sscanf(buffer, "%hd", &(mh->coin_samp_mode));
+
+    miattgetstr(minc_fd, var_id, "Axial_Samp_Mode", sizeof(buffer), buffer);
+    sscanf(buffer, "%hd", &(mh->axial_samp_mode));
+
+    miattgetstr(minc_fd, var_id, "Calibration_Factor", sizeof(buffer), buffer);
+    sscanf(buffer, "%f", &(mh->calibration_factor));
+
+    miattgetstr(minc_fd, var_id, "Study_Type", 12, mh->study_name);
+      
+    miattgetstr(minc_fd, var_id, "Patient_Id", 16, mh->patient_id);
+    
+    miattgetstr(minc_fd, var_id, "Patient_Name", 32, mh->patient_name);
+    
+    miattgetstr(minc_fd, var_id, "Patient_Sex", sizeof(buffer), buffer);
+    sscanf(buffer, "%c", mh->patient_sex);
+    
+    miattgetstr(minc_fd, var_id, "Patient_Dexterity", sizeof(buffer), buffer);
+    sscanf(buffer, "%c", mh->patient_dexterity);
+    
+    miattgetstr(minc_fd, var_id, "Patient_Age", sizeof(buffer), buffer);
+    sscanf(buffer, "%f", &(mh->patient_age));
+    
+    miattgetstr(minc_fd, var_id, "Patient_Height", sizeof(buffer), buffer);
+    sscanf(buffer, "%f", &(mh->patient_height));
+    
+    miattgetstr(minc_fd, var_id, "Patient_Weight", sizeof(buffer), buffer);
+    sscanf(buffer, "%f", &(mh->patient_weight));
+    
+    miattgetstr(minc_fd, var_id, "Patient_Birth_Date", sizeof(buffer), buffer);
+    sscanf(buffer, "%d", &(mh->patient_birth_date));
+
+    miattgetstr(minc_fd, var_id, "Physician_Name", 32, mh->physician_name);
+    
+    miattgetstr(minc_fd, var_id, "Operator_Name", 32, mh->operator_name);
+    
+    miattgetstr(minc_fd, var_id, "Study_Description", 32, mh->study_description); 
+
+   /*bugg -> in minc lib, acquisition should be replaced by acquisition*/
+    miattgetstr(minc_fd, var_id, "Acquision_Type", sizeof(buffer), buffer);
+    sscanf(buffer, "%hd", &(mh->acquisition_type));
+    
+    miattgetstr(minc_fd, var_id, "Patient_Orientation", sizeof(buffer), buffer);
+    sscanf(buffer, "%hd", &(mh->patient_orientation));
+    
+    miattgetstr(minc_fd, var_id, "Facility_Name", 20, mh->facility_name);
+        
+    miattgetstr(minc_fd, var_id, "Lwr_Sctr_Thres", sizeof(buffer), buffer);
+    sscanf(buffer, "%hd", &(mh->lwr_sctr_thres)); 
+    
+    miattgetstr(minc_fd, var_id, "Lwr_True_Thres", sizeof(buffer), buffer);
+    sscanf(buffer, "%hd", &(mh->lwr_true_thres));
+    
+    miattgetstr(minc_fd, var_id, "Upr_True_Thres", sizeof(buffer), buffer);
+    sscanf(buffer, "%hd", &(mh->upr_true_thres));
+    
+    miattgetstr(minc_fd, var_id, "User_Process_Code", 10, mh->user_process_code);
+    
+    miattgetstr(minc_fd, var_id, "Acquisition_Mode", sizeof(buffer), buffer);
+    sscanf(buffer, "%hd", &(mh->acquisition_mode));
+    
+    miattgetstr(minc_fd, var_id, "Bin_Size", sizeof(buffer), buffer);
+    sscanf(buffer, "%f", &(mh->bin_size));
+    
+    miattgetstr(minc_fd, var_id, "Branching_Fraction", sizeof(buffer), buffer);
+    sscanf(buffer, "%f", &(mh->branching_fraction));
+    
+    miattgetstr(minc_fd, var_id, "Dose_Start_Time", sizeof(buffer), buffer);
+    sscanf(buffer, "%u", &(mh->dose_start_time)); 
+    
+    miattgetstr(minc_fd, var_id, "Dosage", sizeof(buffer), buffer);
+    sscanf(buffer, "%f", &(mh->dosage));
+    
+    miattgetstr(minc_fd, var_id, "Well_Counter_Corr_Factor", sizeof(buffer), buffer);
+    sscanf(buffer, "%f", &(mh->well_counter_factor));
+    
+    miattgetstr(minc_fd, var_id, "Data_Units", 32, mh->data_units);
+    
+    miattgetstr(minc_fd, var_id, "Septa_State", sizeof(buffer), buffer);
+    sscanf(buffer, "%hd", &(mh->septa_state));
+  }
+  miclose(minc_fd);
+}
+
+void get_ecat_subheader_info(char *file, Image_subheader *sh) {
+  int minc_fd; /*minc file descriptor*/
+
+ /* we first open the netcdf file*/
+  minc_fd = miopen(file, NC_NOWRITE);
+
+  if(mivar_exists(minc_fd, "ecat-subhdr")) {
+    int var_id;
+    char buffer[NC_MAX_NAME];
+
+    var_id = ncvarid(minc_fd, "ecat-subhdr");
+    
+    miattgetstr(minc_fd, var_id, "Recon_Zoom", sizeof(buffer), buffer);
+    sscanf(buffer, "%f", &(sh->recon_zoom));
+    
+    miattgetstr(minc_fd, var_id, "Filter_Code", sizeof(buffer), buffer);
+    sscanf(buffer, "%hd", &(sh->filter_code));
+    
+    miattgetstr(minc_fd, var_id, "X_Resolution", sizeof(buffer), buffer);
+    sscanf(buffer, "%f", &(sh->x_resolution));
+    
+    miattgetstr(minc_fd, var_id, "Y_Resolution", sizeof(buffer), buffer);
+    sscanf(buffer, "%f", &(sh->y_resolution));
+    
+    miattgetstr(minc_fd, var_id, "Z_Resolution", sizeof(buffer), buffer);
+    sscanf(buffer, "%f", &(sh->z_resolution));
+    
+    miattgetstr(minc_fd, var_id, "X_Rotation_Angle", sizeof(buffer), buffer);
+    sscanf(buffer, "%f", &(sh->num_r_elements));
+    
+    miattgetstr(minc_fd, var_id, "Y_Rotation_Angle", sizeof(buffer), buffer);
+    sscanf(buffer, "%f", &(sh->num_angles));
+    
+    miattgetstr(minc_fd, var_id, "Z_Rotation_Angle", sizeof(buffer), buffer);
+    sscanf(buffer, "%f", &(sh->z_rotation_angle));
+    
+    miattgetstr(minc_fd, var_id, "Decay_Corr_Fctr", sizeof(buffer), buffer);
+    sscanf(buffer, "%f", &(sh->decay_corr_fctr));
+  
+    miattgetstr(minc_fd, var_id, "Corrections_Applied", sizeof(buffer), buffer);
+    sscanf(buffer, "%d", &(sh->processing_code));
+
+    miattgetstr(minc_fd, var_id, "Gate_Duration", sizeof(buffer), buffer);
+    sscanf(buffer, "%u", &(sh->gate_duration));
+    
+    miattgetstr(minc_fd, var_id, "R_Wave_Offset", sizeof(buffer), buffer);
+    sscanf(buffer, "%d", &(sh->r_wave_offset));
+    
+    miattgetstr(minc_fd, var_id, "Num_Accepted_Beats", sizeof(buffer), buffer);
+    sscanf(buffer, "%d", &(sh->num_accepted_beats));
+    
+    miattgetstr(minc_fd, var_id, "Filter_Cutoff_Frequency", sizeof(buffer), buffer);
+    sscanf(buffer, "%f", &(sh->filter_cutoff_frequency));
+    
+    miattgetstr(minc_fd, var_id, "Filter_Dc_Component", sizeof(buffer), buffer);
+    sscanf(buffer, "%f", &(sh->filter_resolution));
+    
+    miattgetstr(minc_fd, var_id, "Filter_Ramp_Slope", sizeof(buffer), buffer);
+    sscanf(buffer, "%f", &(sh->filter_ramp_slope));
+    
+    miattgetstr(minc_fd, var_id, "Filter_Order", sizeof(buffer), buffer);
+    sscanf(buffer, "%hd", &(sh->filter_order));
+    
+    miattgetstr(minc_fd, var_id, "Annotation", 40, sh->annotation);
+    
+    miattgetstr(minc_fd, var_id, "Da_X_Rotation_Angle", sizeof(buffer), buffer);
+    sscanf(buffer, "%f", &(sh->mt_1_1));
+    
+    miattgetstr(minc_fd, var_id, "Da_Y_Rotation_Angle", sizeof(buffer), buffer);
+    sscanf(buffer, "%f", &(sh->mt_1_2));
+    
+    miattgetstr(minc_fd, var_id, "Da_Z_Rotation_Angle", sizeof(buffer), buffer);
+    sscanf(buffer, "%f", &(sh->mt_1_3));
+    
+    miattgetstr(minc_fd, var_id, "Da_X_Translation", sizeof(buffer), buffer);
+    sscanf(buffer, "%f", &(sh->mt_2_1));
+    
+    miattgetstr(minc_fd, var_id, "Da_Y_Translation", sizeof(buffer), buffer);
+    sscanf(buffer, "%f", &(sh->mt_2_2));
+    
+    miattgetstr(minc_fd, var_id, "Da_Z_Translation", sizeof(buffer), buffer);
+    sscanf(buffer, "%f", &(sh->mt_2_3));
+    
+    miattgetstr(minc_fd, var_id, "Da_X_Scale_Factor", sizeof(buffer), buffer);
+    sscanf(buffer, "%f", &(sh->mt_3_1));
+    
+    miattgetstr(minc_fd, var_id, "Da_Y_Scale_Factor", sizeof(buffer), buffer);
+    sscanf(buffer, "%f", &(sh->mt_3_2));
+    
+    miattgetstr(minc_fd, var_id, "Da_Z_Scale_Factor", sizeof(buffer), buffer);
+    sscanf(buffer, "%f", &(sh->mt_3_3));
+    
+    miattgetstr(minc_fd, var_id, "Rfilter_Cutoff", sizeof(buffer), buffer);
+    sscanf(buffer, "%f", &(sh->rfilter_cutoff));
+    
+    miattgetstr(minc_fd, var_id, "Rfilter_Resolution", sizeof(buffer), buffer);
+    sscanf(buffer, "%f", &(sh->rfilter_resolution));
+    
+    miattgetstr(minc_fd, var_id, "Rfilter_Code", sizeof(buffer), buffer);
+    sscanf(buffer, "%hd", &(sh->rfilter_code));
+    
+    miattgetstr(minc_fd, var_id, "Rfilter_Order", sizeof(buffer), buffer);
+    sscanf(buffer, "%hd", &(sh->rfilter_order));
+    
+    miattgetstr(minc_fd, var_id, "Zfilter_Cutoff", sizeof(buffer), buffer);
+    sscanf(buffer, "%f", &(sh->zfilter_cutoff));
+    
+    miattgetstr(minc_fd, var_id, "Zfilter_Resolution", sizeof(buffer), buffer);
+    sscanf(buffer, "%f", &(sh->zfilter_resolution));
+    
+    miattgetstr(minc_fd, var_id, "Zfilter_Code", sizeof(buffer), buffer);
+    sscanf(buffer, "%hd", &(sh->zfilter_code));
+
+    miattgetstr(minc_fd, var_id, "Zfilter_Order", sizeof(buffer), buffer);
+    sscanf(buffer, "%hd", &(sh->zfilter_order));
+  }
+  miclose(minc_fd);
+}
+
+Main_header * init_main_header(char *file, minc_info *mi) {
+  Main_header *mh = NULL;
+
+  if((mh = (Main_header *)calloc(1, sizeof(Main_header))) == NULL) return NULL;
+
+  /****************************************************************************
+   * first, we filled the compulsory fields                                   *
+   ****************************************************************************/
+
+  /*software version 7*/
+  mh->sw_version = 72;  
+
+  /*well ecat is a format for PET data, so MRI data in the minc format will have the PetVolume flag in ecat ....*/
+  mh->file_type = PetVolume; 
+ 
+  mh->num_planes = mi->z_size;
+
+  mh->num_frames = (mi->dim == 4)?mi->time_length:1;
+
+  mh->num_gates = 1; /*not handled for now*/
+
+  mh->num_bed_pos = 0; /*not handles for now*/
+
+  /*inital bed position, I do the backward calculation of ecattominc - !! MIstart may not exist*/
+  mh->init_bed_position = -mi->z_start/10.;
+  mh->init_bed_position = (mi->z_step < 0)?-mi->z_start/10.:-(mi->z_step * (mi->z_size - 1) + mi->z_start)/10.;
+  mh->bed_offset[0] = 0;
+
+  /*for now, the distance_scanned is equal to the number of axial planes times the plane width*/
+  mh->distance_scanned = fabs(mi->z_step) * (mi->z_size + 1)/10.0; /*cm*/
+
+  mh->plane_separation = fabs(mi->z_step)/10.;
+
+  mh->calibration_factor = 1; /*forced*/
+
+  mh->calibration_units = 2; /*2 = processed, by default*/
+ 
+  mh->calibration_units_label = 0; /*by default*/
+
+  if(mi->dunit == NCIPERCC) {
+    mh->calibration_units = 1; 
+    mh->calibration_units_label = 1; 
+  }
+  mh->patient_sex[0] = 'U'; /*for now unknown*/
+
+  mh->patient_dexterity[0] = 'U'; /*unknown for now*/;
+
+  return mh;
+}
+
+Image_subheader * init_image_subheader(char *file, minc_info *mi, Main_header *mh) {
+  Image_subheader *sh = NULL;
+ 
+  if((sh = (Image_subheader *)calloc(1, sizeof(Image_subheader))) == NULL) return NULL;
+ 
+  sh->data_type = SunShort; /*forced*/
+  sh->num_dimensions = 3; /*forced*/
+
+  sh->x_dimension = mi->x_size;
+  sh->y_dimension = mi->y_size;
+  sh->z_dimension = mi->z_size;
+  sh->x_pixel_size = fabs(mi->x_step)/10.0; /*in cm*/
+  sh->y_pixel_size = fabs(mi->y_step)/10.0;
+  sh->z_pixel_size = fabs(mi->z_step)/10.0;
+  sh->x_offset = 0;
+  if(mi->x_start_flag)
+    sh->x_offset = -(mi->x_start + (mi->x_size - 1.0)/2.0 * mi->x_step)/10.;
+  sh->y_offset = 0;
+  if(mi->y_start_flag)
+    sh->y_offset = (mi->y_start + (mi->y_size - 1.0)/2.0 * mi->y_step)/10.;
+  sh->z_offset = 0;
+  return sh;
+}
+void write_ecat_frame(MatrixFile *mf, Image_subheader *sh, short *ptr,int fr, float min, float max) {
+  MatrixData md = {0};
+
+  md.matfile = mf;
+  md.mat_type = mf->mhptr->file_type;
+  md.data_type = sh->data_type;
+  md.shptr = (caddr_t)sh;
+  md.data_ptr = (caddr_t)ptr;
+  md.xdim = sh->x_dimension;
+  md.ydim = sh->y_dimension;
+  md.zdim = sh->z_dimension;
+    
+  md.scale_factor = sh->scale_factor;
+  md.pixel_size = sh->x_pixel_size;
+  md.y_size = sh->y_pixel_size;
+  md.z_size = sh->z_pixel_size;
+  md.data_min = min;
+  md.data_max = max;
+  md.data_size = (sh->x_dimension) * (sh->y_dimension) * (sh->z_dimension) * sizeof(short int);
+  matrix_write(mf,mat_numcod(fr + 1, 1, 1, 0, 0) , &md);
+}
+
+
+void usage_error(char *progname)
+{
+   (void) fprintf(stderr, 
+             "\nUsage: %s [<options>] <infile.mnc> <outfile.v>\n", progname);
+   (void) fprintf(stderr,   
+               "       %s [-help]\n\n", progname);
+
+   exit(EXIT_FAILURE);
+}
+
+
+