Пример #1
0
float PR_type_scale( int itype , MRI_IMAGE * prim )
{
   float ptop , scl ;

   if( ! MRI_IS_INT_TYPE(itype) ) return 1.0 ;

   ptop = mri_maxabs( prim ) ;
   scl  = 1.0 ;

   switch( itype ){

      default: return scl ;

      case MRI_short:
         while( ptop > 32767.0 ){
            scl /= 10.0 ; ptop /= 10.0 ;
         }
      return scl ;

      case MRI_byte:
         while( ptop > 255.0 ){
            scl /= 10.0 ; ptop /= 10.0 ;
         }
      return scl ;

      case MRI_int:
         while( ptop > 2147483647.0 ){
            scl /= 10.0 ; ptop /= 10.0 ;
         }
      return scl ;
   }
}
Пример #2
0
float EDIT_coerce_autoscale( int nxyz ,
                             int itype,void *ivol , int otype,void *ovol )
{
    float fac=0.0 , top ;

    ENTRY("EDIT_coerce_autoscale") ;

    if( MRI_IS_INT_TYPE(otype) ) {
        top = MCW_vol_amax( nxyz,1,1 , itype,ivol ) ;
        fac = (top > MRI_TYPE_maxval[otype]) ? MRI_TYPE_maxval[otype]/top : 0.0 ;
    }

    EDIT_coerce_scale_type( nxyz , fac , itype,ivol , otype,ovol ) ;
    RETURN( fac );
}
Пример #3
0
float EDIT_convert_dtype( int nxyz , int itype,void *ivol ,
                          int otype,void *ovol , int limit )
{
    float fac=0.0 , top, olimit ;

    ENTRY("EDIT_convert_dtype") ;

    if( MRI_IS_INT_TYPE(otype) ) {
        olimit = (limit > 0) ? limit : MRI_TYPE_maxval[otype];
        top = MCW_vol_amax( nxyz,1,1 , itype,ivol ) ;
        if( top > olimit || !is_integral_data(nxyz, itype, ivol) )
            fac = olimit/top ;
    }

    EDIT_coerce_scale_type( nxyz , fac , itype,ivol , otype,ovol ) ;
    RETURN( fac );
}
Пример #4
0
int main( int argc , char *argv[] )
{
   int vstep=0 , ii,nvox , ntin , ntout , do_one=0 , nup=-1 ;
   THD_3dim_dataset *inset=NULL , *outset ;
   char *prefix="Upsam", *dsetname=NULL ;
   int verb=0 , iarg=1, datum = MRI_float;
   float *ivec , *ovec , trin , trout, *fac=NULL, *ofac=NULL, 
         top=0.0, maxtop=0.0;

   /*------- help the pitifully ignorant user? -------*/

   if( argc < 2 || strcmp(argv[1],"-help") == 0 ){
     printf(
      "Usage: 3dUpsample [options] n dataset\n"
      "\n"
      "* Upsamples a 3D+time dataset, in the time direction,\n"
      "   by a factor of 'n'.\n"
      "* The value of 'n' must be between 2 and 320 (inclusive).\n"
      "* The output dataset is in float format by default.\n"
      "\n"
      "Options:\n"
      "--------\n"
      " -1 or -one = Use linear interpolation. Otherwise,\n"
      " or -linear   7th order polynomial interpolation is used.\n"
      "\n"
      " -prefix pp = Define the prefix name of the output dataset.\n"
      "              [default prefix is 'Upsam']\n"
      "\n"
      " -verb      = Be eloquently and mellifluosly verbose.\n"
      "\n"
      " -n n       = An alternate way to specify n\n"
      " -input dataset = An alternate way to specify dataset\n"
      "\n"
      " -datum ddd = Use datatype ddd at output. Choose from\n"
      "              float (default), short, byte.\n"
      "Example:\n"
      "--------\n"
      " 3dUpsample -prefix LongFred 5 Fred+orig\n"
      "\n"
      "Nota Bene:\n"
      "----------\n"
      "* You should not use this for files that were 3dTcat-ed across\n"
      "   imaging run boundaries, since that will result in interpolating\n"
      "   between non-contiguous time samples!\n"
      "* If the input has M time points, the output will have n*M time\n"
      "   points.  The last n-1 of them will be past the end of the original\n"
      "   time series.\n"
      "* This program gobbles up memory and diskspace as a function of n.\n"
      "  You can reduce output file size with -datum option.\n"
      "\n"
      "--- RW Cox - April 2008\n"
     ) ;
     PRINT_COMPILE_DATE ; exit(0) ;
   }

   mainENTRY("3dUpsample"); machdep();
   PRINT_VERSION("3dUpsample"); AUTHOR("RWCox") ;
   AFNI_logger("3dUpsample",argc,argv);

   /*------- read command line args -------*/

   datum = MRI_float;
   iarg = 1 ;
   while( iarg < argc && argv[iarg][0] == '-' ){

     if( strncasecmp(argv[iarg],"-prefix",5) == 0 ){
       if( ++iarg >= argc )
         ERROR_exit("Need argument after '%s'",argv[iarg-1]);
       prefix = argv[iarg] ;
       if( !THD_filename_ok(prefix) )
         ERROR_exit("Illegal string after -prefix: '%s'",prefix) ;
       iarg++ ; continue ;
     }

     if( strncasecmp(argv[iarg],"-one",4) == 0 ||
         strcmp     (argv[iarg],"-1"    ) == 0 ||
         strncasecmp(argv[iarg],"-lin",4) == 0   ){
       do_one = 1 ; iarg++ ; continue ;
     }

     if( strncasecmp(argv[iarg],"-verb",3) == 0 ){
       verb = 1 ; iarg++ ; continue ;
     }

     if( strcasecmp(argv[iarg],"-n") == 0 ){
      if( ++iarg >= argc )
         ERROR_exit("Need argument after '%s'",argv[iarg-1]);
      nup = (int)strtod(argv[iarg],NULL) ;
      if( nup < 2 || nup > 320 )
        ERROR_exit("3dUpsample rate '%d' is outside range 2..320",nup) ;
      iarg++ ; continue ;
     }

     if( strcasecmp(argv[iarg],"-input") == 0 ){
      if( ++iarg >= argc )
         ERROR_exit("Need argument after '%s'",argv[iarg-1]);
      dsetname = argv[iarg];
      iarg++ ; continue ;
     }
     
     if( strcasecmp(argv[iarg],"-datum") == 0 ){
      if( ++iarg >= argc )
         ERROR_exit("Need argument after '%s'",argv[iarg-1]);
      
         if( strcmp(argv[iarg],"short") == 0 ){
            datum = MRI_short ;
         } else if( strcmp(argv[iarg],"float") == 0 ){
            datum = MRI_float ;
         } else if( strcmp(argv[iarg],"byte") == 0 ){
            datum = MRI_byte ;
         } else {
            ERROR_message("-datum of type '%s' not supported in 3dUpsample!\n",
                    argv[iarg] ) ;
            exit(1) ;
         }
         
      iarg++ ; continue ;
     }
     
     ERROR_message("Unknown argument on command line: '%s'",argv[iarg]) ;
     suggest_best_prog_option(argv[0], argv[iarg]);
     exit (1);
   }

   /*------- check options for completeness and consistency -----*/
   
   if (nup == -1) {
      if( iarg+1 >= argc )
        ERROR_exit("need 'n' and 'dataset' on command line!") ;

      nup = (int)strtod(argv[iarg++],NULL) ;
      if( nup < 2 || nup > 320 )
        ERROR_exit("3dUpsample rate '%d' is outside range 2..320",nup) ;
   } 
   if (!dsetname) {
      if( iarg >= argc )
        ERROR_exit("need 'dataset' on command line!") ;
      dsetname = argv[iarg];
   }
   
   inset = THD_open_dataset(dsetname) ;
   if( !ISVALID_DSET(inset) )
     ERROR_exit("3dUpsample can't open dataset '%s'", dsetname) ;
   ntin = DSET_NVALS(inset) ; trin = DSET_TR(inset) ;
   if( ntin < 2 )
     ERROR_exit("dataset '%s' has only 1 value per voxel?!",dsetname) ;

   nvox = DSET_NVOX(inset) ;

   if( verb ) INFO_message("loading input dataset into memory") ;

   DSET_load(inset) ; CHECK_LOAD_ERROR(inset) ;


   /*------ create output dataset ------*/

   ntout = ntin * nup ; trout = trin / nup ;

   /* scaling factor for output */
   fac = NULL; maxtop = 0.0;
   if (MRI_IS_INT_TYPE(datum)) {
      fac = (float *)calloc(DSET_NVALS(inset), sizeof(float));
      ofac = (float *)calloc(ntout, sizeof(float));
      for (ii=0; ii<DSET_NVALS(inset); ++ii) {
         top = MCW_vol_amax( DSET_NVOX(inset),1,1 , 
                             DSET_BRICK_TYPE(inset,ii), 
                             DSET_BRICK_ARRAY(inset,ii) ) ;
         if (DSET_BRICK_FACTOR(inset, ii)) 
            top = top * DSET_BRICK_FACTOR(inset,ii);
         fac[ii] = (top > MRI_TYPE_maxval[datum]) ? 
                        top/MRI_TYPE_maxval[datum] : 0.0 ;
         if (top > maxtop) maxtop = top;
      }
      if (storage_mode_from_filename(prefix) != STORAGE_BY_BRICK) {
         fac[0] = (maxtop > MRI_TYPE_maxval[datum]) ? 
                        maxtop/MRI_TYPE_maxval[datum] : 0.0 ;
         for (ii=0; ii<ntout; ++ii) 
            ofac[ii] = fac[0];
         if (verb) INFO_message("Forcing global scaling, Max = %f, fac = %f\n", 
                        maxtop, fac[0]);
      } else {
         if (verb) INFO_message("Reusing scaling factors of input dset\n");
         upsample_1( nup, DSET_NVALS(inset), fac, ofac);
      }
   }
   free(fac); fac = NULL;
   outset = EDIT_empty_copy(inset) ;
   EDIT_dset_items( outset ,
                        ADN_nvals     , ntout          ,
                        ADN_ntt       , DSET_NUM_TIMES(inset) > 1 ? ntout : 0 ,
                        ADN_datum_all , datum      ,
                        ADN_brick_fac , ofac           ,
                        ADN_prefix    , prefix         ,
                      ADN_none ) ;
   tross_Copy_History( inset , outset ) ;
   tross_Make_History( "3dUpsample" , argc,argv , outset ) ;
   free(ofac); ofac = NULL;
   
   if( outset->taxis != NULL ){
     outset->taxis->ttdel /= nup ;
     outset->taxis->ttdur /= nup ;
     if( outset->taxis->toff_sl != NULL ){
       for( ii=0 ; ii < outset->taxis->nsl ; ii++ )
         outset->taxis->toff_sl[ii] /= nup ;
     }
   }

   for( ii=0 ; ii < ntout ; ii++ ){ /* create empty bricks to be filled below */
     EDIT_substitute_brick( outset , ii , datum , NULL ) ;
   }

   /*------- loop over voxels and process them one at a time ---------*/

   if( verb )
     INFO_message("Upsampling time series from %d to %d: %s interpolation",
                  ntin , ntout , (do_one) ? "linear" : "heptic" ) ;

   if( verb && nvox > 499 ) vstep = nvox / 50 ;
   if( vstep > 0 ) fprintf(stderr,"++ voxel loop: ") ;

   ivec = (float *)malloc(sizeof(float)*ntin) ;
   ovec = (float *)malloc(sizeof(float)*ntout) ;

   for( ii=0 ; ii < nvox ; ii++ ){

     if( vstep > 0 && ii%vstep==vstep-1 ) vstep_print() ;

     THD_extract_array( ii , inset , 0 , ivec ) ;

     if( do_one ) upsample_1( nup , ntin , ivec , ovec ) ;
     else         upsample_7( nup , ntin , ivec , ovec ) ;

     THD_insert_series( ii , outset , ntout , MRI_float , ovec , 
                        datum==MRI_float ? 1:0 ) ;
   } /* end of loop over voxels */

   if( vstep > 0 ) fprintf(stderr," Done!\n") ;

   /*----- clean up and go away -----*/

   DSET_write(outset) ;
   if( verb ) WROTE_DSET(outset) ;
   if( verb ) INFO_message("Total CPU time = %.1f s",COX_cpu_time()) ;
   exit(0);
}
Пример #5
0
int main( int argc , char *argv[] )
{
   int iarg=1 , ii,nvox , nvals ;
   THD_3dim_dataset *inset=NULL, *outset=NULL , *mset=NULL ;
   char *prefix="./blurinmask" ;
   float fwhm_goal=0.0f ; int fwhm_2D=0 ;
   byte *mask=NULL ; int mask_nx=0,mask_ny=0,mask_nz=0 , automask=0 , nmask=0 ;
   float dx,dy,dz=0.0f , *bar , val ;
   int floatize=0 ;    /* 18 May 2009 */

   MRI_IMAGE *immask=NULL ;    /* 07 Oct 2009 */
   short      *mmask=NULL ;
   short      *unval_mmask=NULL ; int nuniq_mmask=0 ;
   int do_preserve=0 , use_qsar ;         /* 19 Oct 2009 */

   THD_3dim_dataset *fwhmset=NULL ;
   MRI_IMAGE *fxim=NULL, *fyim=NULL, *fzim=NULL ; /* 13 Jun 2016 */
   int niter_fxyz=0 ; float dmax=0.0f , dmin=0.0f ;

   /*------- help the pitifully ignorant luser? -------*/

   AFNI_SETUP_OMP(0) ;  /* 24 Jun 2013 */

   if( argc < 2 || strcmp(argv[1],"-help") == 0 ){
     printf(
      "Usage: ~1~\n"
      "3dBlurInMask [options]\n"
      "Blurs a dataset spatially inside a mask. That's all. Experimental.\n"
      "\n"
      "OPTIONS ~1~\n"
      "-------\n"
      " -input  ddd = This required 'option' specifies the dataset\n"
      "               that will be smoothed and output.\n"
      " -FWHM   f   = Add 'f' amount of smoothness to the dataset (in mm).\n"
      "              **N.B.: This is also a required 'option'.\n"
      " -FWHMdset d = Read in dataset 'd' and add the amount of smoothness\n"
      "               given at each voxel -- spatially variable blurring.\n"
      "              ** EXPERIMENTAL EXPERIMENTAL EXPERIMENTAL **\n"
      " -mask   mmm = Mask dataset, if desired.  Blurring will\n"
      "               occur only within the mask.  Voxels NOT in\n"
      "               the mask will be set to zero in the output.\n"
      " -Mmask  mmm = Multi-mask dataset -- each distinct nonzero\n"
      "               value in dataset 'mmm' will be treated as\n"
      "               a separate mask for blurring purposes.\n"
      "              **N.B.: 'mmm' must be byte- or short-valued!\n"
      " -automask   = Create an automask from the input dataset.\n"
      "              **N.B.: only 1 masking option can be used!\n"
      " -preserve   = Normally, voxels not in the mask will be\n"
      "               set to zero in the output.  If you want the\n"
      "               original values in the dataset to be preserved\n"
      "               in the output, use this option.\n"
      " -prefix ppp = Prefix for output dataset will be 'ppp'.\n"
      "              **N.B.: Output dataset is always in float format.\n"
      " -quiet      = Don't be verbose with the progress reports.\n"
      " -float      = Save dataset as floats, no matter what the\n"
      "               input data type is.\n"
      "              **N.B.: If the input dataset is unscaled shorts, then\n"
      "                      the default is to save the output in short\n"
      "                      format as well.  In EVERY other case, the\n"
      "                      program saves the output as floats. Thus,\n"
      "                      the ONLY purpose of the '-float' option is to\n"
      "                      force an all-shorts input dataset to be saved\n"
      "                      as all-floats after blurring.\n"
      "\n"
      "NOTES ~1~\n"
      "-----\n"
      " * If you don't provide a mask, then all voxels will be included\n"
      "     in the blurring.  (But then why are you using this program?)\n"
      " * Note that voxels inside the mask that are not contiguous with\n"
      "     any other voxels inside the mask will not be modified at all!\n"
      " * Works iteratively, similarly to 3dBlurToFWHM, but without\n"
      "     the extensive overhead of monitoring the smoothness.\n"
      " * But this program will be faster than 3dBlurToFWHM, and probably\n"
      "     slower than 3dmerge.\n"
      " * Since the blurring is done iteratively, rather than all-at-once as\n"
      "     in 3dmerge, the results will be slightly different than 3dmerge's,\n"
      "     even if no mask is used here (3dmerge, of course, doesn't take a mask).\n"
      " * If the original FWHM of the dataset was 'S' and you input a value\n"
      "     'F' with the '-FWHM' option, then the output dataset's smoothness\n"
      "     will be about sqrt(S*S+F*F).  The number of iterations will be\n"
      "     about (F*F/d*d) where d=grid spacing; this means that a large value\n"
      "     of F might take a lot of CPU time!\n"
      " * The spatial smoothness of a 3D+time dataset can be estimated with a\n"
      "     command similar to the following:\n"
      "          3dFWHMx -detrend -mask mmm+orig -input ddd+orig\n"
     ) ;
     printf(
      " * The minimum number of voxels in the mask is %d\n",MASK_MIN) ;
     printf(
      " * Isolated voxels will be removed from the mask!\n") ;

     PRINT_AFNI_OMP_USAGE("3dBlurInMask",NULL) ;
     PRINT_COMPILE_DATE ; exit(0) ;
   }

   /*---- official startup ---*/

   PRINT_VERSION("3dBlurInMask"); mainENTRY("3dBlurInMask main"); machdep();
   AFNI_logger("3dBlurInMask",argc,argv); AUTHOR("RW Cox") ;

   /*---- loop over options ----*/

   while( iarg < argc && argv[iarg][0] == '-' ){

     if( strncmp(argv[iarg],"-preserve",5) == 0 ){  /* 19 Oct 2009 */
       do_preserve = 1 ; iarg++ ; continue ;
     }

     if( strncmp(argv[iarg],"-qui",4) == 0 ){
       verb = 0 ; iarg++ ; continue ;
     }
     if( strncmp(argv[iarg],"-ver",4) == 0 ){
       verb++ ; iarg++ ; continue ;
     }

     if( strcmp(argv[iarg],"-input") == 0 || strcmp(argv[iarg],"-dset") == 0 ){
       if( inset != NULL  ) ERROR_exit("Can't have two -input options") ;
       if( ++iarg >= argc ) ERROR_exit("Need argument after '-input'") ;
       inset = THD_open_dataset( argv[iarg] );
       CHECK_OPEN_ERROR(inset,argv[iarg]) ;
       iarg++ ; continue ;
     }

     if( strcmp(argv[iarg],"-prefix") == 0 ){
       if( ++iarg >= argc ) ERROR_exit("Need argument after '-prefix'") ;
       prefix = strdup(argv[iarg]) ;
       if( !THD_filename_ok(prefix) ) ERROR_exit("Bad name after '-prefix'") ;
       iarg++ ; continue ;
     }

     if( strcasecmp(argv[iarg],"-Mmask") == 0 ){   /* 07 Oct 2009 */
       if( ++iarg >= argc ) ERROR_exit("Need argument after '-Mmask'") ;
       if( mmask != NULL || mask != NULL || automask ) ERROR_exit("Can't have two mask inputs") ;
       mset = THD_open_dataset( argv[iarg] ) ;
       CHECK_OPEN_ERROR(mset,argv[iarg]) ;
       DSET_load(mset) ; CHECK_LOAD_ERROR(mset) ;
       mask_nx = DSET_NX(mset); mask_ny = DSET_NY(mset); mask_nz = DSET_NZ(mset);
#if 0
       if( !MRI_IS_INT_TYPE(DSET_BRICK_TYPE(mset,0)) )
         ERROR_exit("-Mmask dataset is not integer type!") ;
#endif
       immask = mri_to_short( 1.0 , DSET_BRICK(mset,0) ) ;
       mmask  = MRI_SHORT_PTR(immask) ;
       unval_mmask = UniqueShort( mmask, mask_nx*mask_ny*mask_nz, &nuniq_mmask, 0 ) ;
       if( unval_mmask == NULL || nuniq_mmask == 0 )
         ERROR_exit("-Mmask dataset cannot be processed!?") ;
       if( nuniq_mmask == 1 && unval_mmask[0] == 0 )
         ERROR_exit("-Mmask dataset is all zeros!?") ;
       if( verb ){
         int qq , ww ;
         for( ii=qq=0 ; ii < nuniq_mmask ; ii++ ) if( unval_mmask[ii] != 0 ) qq++ ;
         for( ii=ww=0 ; ii < immask->nvox ; ii++ ) if( mmask[ii] != 0 ) ww++ ;
         INFO_message("%d unique nonzero values in -Mmask; %d nonzero voxels",qq,ww) ;
       }
       iarg++ ; continue ;
     }

     if( strcmp(argv[iarg],"-mask") == 0 ){
       if( ++iarg >= argc ) ERROR_exit("Need argument after '-mask'") ;
       if( mmask != NULL || mask != NULL || automask ) ERROR_exit("Can't have two mask inputs") ;
       mset = THD_open_dataset( argv[iarg] ) ;
       CHECK_OPEN_ERROR(mset,argv[iarg]) ;
       DSET_load(mset) ; CHECK_LOAD_ERROR(mset) ;
       mask_nx = DSET_NX(mset); mask_ny = DSET_NY(mset); mask_nz = DSET_NZ(mset);
       mask = THD_makemask( mset , 0 , 0.5f, 0.0f ) ; DSET_unload(mset) ;
       if( mask == NULL ) ERROR_exit("Can't make mask from dataset '%s'",argv[iarg]) ;
       ii = THD_mask_remove_isolas( mask_nx,mask_ny,mask_nz , mask ) ;
       if( verb && ii > 0 ) INFO_message("Removed %d isola%s from mask dataset",ii,(ii==1)?"\0":"s") ;
       nmask = THD_countmask( mask_nx*mask_ny*mask_nz , mask ) ;
       if( verb ) INFO_message("Number of voxels in mask = %d",nmask) ;
       if( nmask < MASK_MIN ) ERROR_exit("Mask is too small to process") ;
       iarg++ ; continue ;
     }

     if( strcmp(argv[iarg],"-automask") == 0 ){
       if( mmask != NULL || mask != NULL ) ERROR_exit("Can't have 2 mask inputs") ;
       automask = 1 ; iarg++ ; continue ;
     }

     if( strcasecmp(argv[iarg],"-FWHM") == 0 || strcasecmp(argv[iarg],"-FHWM") == 0 ){
       if( ++iarg >= argc ) ERROR_exit("Need argument after '%s'",argv[iarg-1]);
       val = (float)strtod(argv[iarg],NULL) ;
       if( val <= 0.0f ) ERROR_exit("Illegal value after '%s': '%s'",
                                    argv[iarg-1],argv[iarg]) ;
       fwhm_goal = val ; fwhm_2D = 0 ;
       iarg++ ; continue ;
     }

     if( strcasecmp(argv[iarg],"-FWHMdset") == 0 ){
       if( ++iarg >= argc ) ERROR_exit("Need argument after '%s'",argv[iarg-1]);
       if( fwhmset != NULL ) ERROR_exit("You can't use option '-FWHMdset' twice :(") ;
       fwhmset = THD_open_dataset( argv[iarg] ) ;
       CHECK_OPEN_ERROR(fwhmset,argv[iarg]) ;
       do_preserve = 1 ; iarg++ ; continue ;
     }

     if( strncmp(argv[iarg],"-float",6) == 0 ){    /* 18 May 2009 */
       floatize = 1 ; iarg++ ; continue ;
     }

#if 0
     if( strcmp(argv[iarg],"-FWHMxy") == 0 || strcmp(argv[iarg],"-FHWMxy") == 0 ){
       if( ++iarg >= argc ) ERROR_exit("Need argument after '%s'",argv[iarg-1]);
       val = (float)strtod(argv[iarg],NULL) ;
       if( val <= 0.0f ) ERROR_exit("Illegal value after '%s': '%s'",
                                    argv[iarg-1],argv[iarg]) ;
       fwhm_goal = val ; fwhm_2D = 1 ;
       iarg++ ; continue ;
     }
#endif

     ERROR_exit("Uknown option '%s'",argv[iarg]) ;

   } /*--- end of loop over options ---*/

   /*----- check for stupid inputs, load datasets, et cetera -----*/

   if( fwhmset == NULL && fwhm_goal == 0.0f )
     ERROR_exit("No -FWHM option given! What do you want?") ;

   if( fwhmset != NULL && fwhm_goal > 0.0f ){
     WARNING_message("-FWHMdset option replaces -FWHM value") ;
     fwhm_goal = 0.0f ;
   }

   if( fwhmset != NULL && mmask != NULL )
     ERROR_exit("Sorry: -FWHMdset and -Mmask don't work together (yet)") ;

   if( inset == NULL ){
     if( iarg >= argc ) ERROR_exit("No input dataset on command line?") ;
     inset = THD_open_dataset( argv[iarg] ) ;
     CHECK_OPEN_ERROR(inset,argv[iarg]) ;
   }

   nvox = DSET_NVOX(inset)     ;
   dx   = fabs(DSET_DX(inset)) ; if( dx == 0.0f ) dx = 1.0f ;
   dy   = fabs(DSET_DY(inset)) ; if( dy == 0.0f ) dy = 1.0f ;
   dz   = fabs(DSET_DZ(inset)) ; if( dz == 0.0f ) dz = 1.0f ;

   dmax = MAX(dx,dy) ; if( dmax < dz ) dmax = dz ;  /* 13 Jun 2016 */
   dmin = MIN(dx,dy) ; if( dmin > dz ) dmin = dz ;

   if( !floatize ){    /* 18 May 2009 */
     if( !THD_datum_constant(inset->dblk)     ||
         THD_need_brick_factor(inset)         ||
         DSET_BRICK_TYPE(inset,0) != MRI_short  ){
       if( verb ) INFO_message("forcing output to be stored in float format") ;
       floatize = 1 ;
     } else {
       if( verb ) INFO_message("output dataset will be stored as shorts") ;
     }
   } else {
       if( verb ) INFO_message("output dataset will be stored as floats") ;
   }

#if 0
   if( DSET_NZ(inset) == 1 && !fwhm_2D ){
     WARNING_message("Dataset is 2D ==> switching from -FWHM to -FWHMxy") ;
     fwhm_2D = 1 ;
   }
#endif

   /*--- deal with mask or automask ---*/

   if( mask != NULL ){
     if( mask_nx != DSET_NX(inset) ||
         mask_ny != DSET_NY(inset) ||
         mask_nz != DSET_NZ(inset)   )
       ERROR_exit("-mask dataset grid doesn't match input dataset") ;

   } else if( automask ){
     mask = THD_automask( inset ) ;
     if( mask == NULL )
       ERROR_message("Can't create -automask from input dataset?") ;
     nmask = THD_countmask( DSET_NVOX(inset) , mask ) ;
     if( verb ) INFO_message("Number of voxels in automask = %d",nmask);
     if( nmask < MASK_MIN ) ERROR_exit("Automask is too small to process") ;

   } else if( mmask != NULL ){
     if( mask_nx != DSET_NX(inset) ||
         mask_ny != DSET_NY(inset) ||
         mask_nz != DSET_NZ(inset)   )
       ERROR_exit("-Mmask dataset grid doesn't match input dataset") ;

   } else {
     mask = (byte *)malloc(sizeof(byte)*nvox) ; nmask = nvox ;
     memset(mask,1,sizeof(byte)*nvox) ;
     if( verb ) INFO_message("No mask ==> processing all %d voxels",nvox);
   }

   /*--- process FWHMdset [13 Jun 2016] ---*/

   if( fwhmset != NULL ){
     float *fxar,*fyar,*fzar , *fwar ; MRI_IMAGE *fwim ;
     float fwmax=0.0f , fsx,fsy,fsz ; int ii, nfpos=0 ;

     if( DSET_NX(inset) != DSET_NX(fwhmset) ||
         DSET_NY(inset) != DSET_NY(fwhmset) ||
         DSET_NZ(inset) != DSET_NZ(fwhmset)   )
       ERROR_exit("grid dimensions for FWHMdset and input dataset do not match :(") ;

STATUS("get fwim") ;
     DSET_load(fwhmset) ;
     fwim = mri_scale_to_float(DSET_BRICK_FACTOR(fwhmset,0),DSET_BRICK(fwhmset,0));
     fwar = MRI_FLOAT_PTR(fwim);
     DSET_unload(fwhmset) ;
STATUS("process fwar") ;
     for( ii=0 ; ii < nvox ; ii++ ){
       if( mask[ii] && fwar[ii] > 0.0f ){
         nfpos++ ;
         if( fwar[ii] > fwmax ) fwmax = fwar[ii] ;
       } else {
         fwar[ii] = 0.0f ; mask[ii] = 0 ;
       }
     }
     if( nfpos < 100 )
       ERROR_exit("Cannot proceed: too few (%d) voxels are positive in -FWHMdset!",nfpos) ;

     niter_fxyz = (int)rintf(2.0f*fwmax*fwmax*FFAC/(0.05f*dmin*dmin)) + 1 ;

     if( verb ) INFO_message("-FWHMdset: niter=%d  npos=%d",niter_fxyz,nfpos) ;

STATUS("create fxim etc.") ;

     fxim = mri_new_conforming(fwim,MRI_float); fxar = MRI_FLOAT_PTR(fxim);
     fyim = mri_new_conforming(fwim,MRI_float); fyar = MRI_FLOAT_PTR(fyim);
     fzim = mri_new_conforming(fwim,MRI_float); fzar = MRI_FLOAT_PTR(fzim);

     fsx = FFAC/(dx*dx*niter_fxyz) ;
     fsy = FFAC/(dy*dy*niter_fxyz) ;
     fsz = FFAC/(dz*dz*niter_fxyz) ;
/** INFO_message("fsx=%g fsy=%g fsz=%g",fsx,fsy,fsz) ; **/

     for( ii=0 ; ii < nvox ; ii++ ){
       if( fwar[ii] > 0.0f ){
         fxar[ii] = fwar[ii]*fwar[ii] * fsx ;
         fyar[ii] = fwar[ii]*fwar[ii] * fsy ;
         fzar[ii] = fwar[ii]*fwar[ii] * fsz ;
       } else {
         fxar[ii] = fyar[ii] = fzar[ii] = 0.0f ;
       }
     }

STATUS("free(fwim)") ;
     mri_free(fwim) ;
   }

   /*--- process input dataset ---*/

STATUS("load input") ;

   DSET_load(inset) ; CHECK_LOAD_ERROR(inset) ;

   outset = EDIT_empty_copy( inset ) ;   /* moved here 04 Jun 2007 */
   EDIT_dset_items( outset , ADN_prefix , prefix , ADN_none ) ;
   EDIT_dset_items( outset , ADN_brick_fac , NULL , ADN_none ) ;  /* 11 Sep 2007 */
   tross_Copy_History( inset , outset ) ;
   tross_Make_History( "3dBlurInMask" , argc,argv , outset ) ;

   nvals = DSET_NVALS(inset) ;

   use_qsar = (do_preserve || mmask != NULL) ; /* 19 Oct 20090 */

 AFNI_OMP_START ;
#pragma omp parallel if( nvals > 1 )
 {
   MRI_IMAGE *dsim ; int ids,qit ; byte *qmask=NULL ; register int vv ;
   MRI_IMAGE *qim=NULL, *qsim=NULL; float *qar=NULL, *dsar, *qsar=NULL;
#pragma omp critical (MALLOC)
   { if( use_qsar ){
       qsim  = mri_new_conforming(DSET_BRICK(inset,0),MRI_float); qsar = MRI_FLOAT_PTR(qsim);
     }
     if( mmask != NULL ){
       qmask = (byte *)malloc(sizeof(byte)*nvox) ;
       qim   = mri_new_conforming(immask,MRI_float); qar  = MRI_FLOAT_PTR(qim);
       qim->dx = dx ; qim->dy = dy ; qim->dz = dz ;
     }
   }
#pragma omp for
   for( ids=0 ; ids < nvals ; ids++ ){
#pragma omp critical (MALLOC)
     { dsim = mri_scale_to_float(DSET_BRICK_FACTOR(inset,ids),DSET_BRICK(inset,ids));
       DSET_unload_one(inset,ids) ;
     }
     dsim->dx = dx ; dsim->dy = dy ; dsim->dz = dz ; dsar = MRI_FLOAT_PTR(dsim) ;

     /* if needed, initialize qsar with data to be preserved in output */

     if( do_preserve ){
       for( vv=0 ; vv < nvox ; vv++ ) qsar[vv] = dsar[vv] ;
     } else if( mmask != NULL ){
       for( vv=0 ; vv < nvox ; vv++ ) qsar[vv] = 0.0f ;
     }

     if( fwhmset != NULL ){       /* 13 Jun 2016: spatially variable blurring */

       for( qit=0 ; qit < niter_fxyz ; qit++ ){
         mri_blur3D_variable( dsim , mask , fxim,fyim,fzim ) ;
       }
       if( do_preserve ){
         for( vv=0 ; vv < nvox ; vv++ ) if( mask[vv] ) qsar[vv] = dsar[vv] ;
       }

     } else if( mmask != NULL ){         /* 07 Oct 2009: multiple masks */
       int qq ; register short uval ;
       for( qq=0 ; qq < nuniq_mmask ; qq++ ){
         uval = unval_mmask[qq] ; if( uval == 0 ) continue ;
         for( vv=0 ; vv < nvox ; vv++ ) qmask[vv] = (mmask[vv]==uval) ; /* make mask */
         (void)THD_mask_remove_isolas( mask_nx,mask_ny,mask_nz , qmask ) ;
         nmask = THD_countmask( nvox , qmask ) ;
         if( verb && ids==0 ) ININFO_message("voxels in Mmask[%d] = %d",uval,nmask) ;
         if( nmask >= MASK_MIN ){
           /* copy data from dataset to qar */
           for( vv=0 ; vv < nvox ; vv++ ) if( qmask[vv] ) qar[vv] = dsar[vv] ;
           /* blur qar (output will be zero where qmask==0) */
           mri_blur3D_addfwhm( qim , qmask , fwhm_goal ) ;  /** the real work **/
           /* copy results back to qsar */
           for( vv=0 ; vv < nvox ; vv++ ) if( qmask[vv] ) qsar[vv] = qar[vv] ;
         }
       }

     } else {                      /* the olden way: 1 mask */

       mri_blur3D_addfwhm( dsim , mask , fwhm_goal ) ;  /** all the work **/

       /* dsim will be zero where mask==0;
          if we want to preserve the input values, copy dsar into qsar now
          at all mask!=0 voxels, since qsar contains the original data values */

       if( do_preserve ){
         for( vv=0 ; vv < nvox ; vv++ ) if( mask[vv] ) qsar[vv] = dsar[vv] ;
       }

     }

     /* if necessary, copy combined results in qsar to dsar for output */

     if( use_qsar ){
       for( vv=0 ; vv < nvox ; vv++ ) dsar[vv] = qsar[vv] ;
     }

     if( floatize ){
       EDIT_substitute_brick( outset , ids , MRI_float , dsar ) ;
     } else {
#pragma omp critical (MALLOC)
       { EDIT_substscale_brick( outset , ids , MRI_float , dsar ,
                                               MRI_short , 1.0f  ) ;
         mri_free(dsim) ;
       }
     }
   } /* end of loop over sub-bricks */

#pragma omp critical (MALLOC)
   { if( qsim   != NULL ) mri_free(qsim);
     if( immask != NULL ){ free(qmask); mri_free(qim); }
   }
 } /* end OpenMP */
 AFNI_OMP_END ;

   if(   mask != NULL )     free(  mask) ;
   if( immask != NULL ) mri_free(immask) ;

   DSET_unload(inset) ;
   DSET_write(outset) ;
   WROTE_DSET(outset) ;
   exit(0) ;
}