FT_DEFACEVOLUME
Note that this reference documentation is identical to the help that is displayed in MATLAB when you type “help ft_defacevolume”.
FT_DEFACEVOLUME allows you to de-identify an anatomical MRI by erasing specific regions, such as the face and ears. The graphical user interface allows you to position a box over the anatomical data inside which all anatomical voxel values will be replaced by zero. You might have to call this function multiple times when both face and ears need to be removed. Following defacing, you should check the result with FT_SOURCEPLOT. Use as mri = ft_defacevolume(cfg, mri) The configuration can contain the following options cfg.translate = initial position of the center of the box (default = [0 0 0]) cfg.scale = initial size of the box along each dimension (default is automatic) cfg.translate = initial rotation of the box (default = [0 0 0]) cfg.selection = which voxels to keep, can be 'inside' or 'outside' (default = 'outside') cfg.smooth = 'no' or the FWHM of the gaussian kernel in voxels (default = 'no') cfg.keepbrain = 'no' or 'yes', segment and retain the brain (default = 'no') cfg.feedback = 'no' or 'yes', whether to provide graphical feedback (default = 'no') If you specify no smoothing, the selected area will be zero-masked. If you specify a certain amount of smoothing (in voxels FWHM), the selected area will be replaced by a smoothed version of the data. See also FT_ANONIMIZEDATA, FT_DEFACEMESH, FT_ANALYSISPIPELINE, FT_SOURCEPLOT