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reference:ft_volumedownsample [2018/08/23 14:43] (current)
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 +=====  FT_VOLUMEDOWNSAMPLE =====
 +
 +Note that this reference documentation is identical to the help that is displayed in MATLAB when you type "help ft_volumedownsample"​.
 +
 +<​html><​pre>​
 +  <a href=/​reference/​ft_volumedownsample><​font color=green>​FT_VOLUMEDOWNSAMPLE</​font></​a>​ downsamples an anatomical MRI or source reconstruction
 +  and optionally normalizes its coordinate axes, keeping the homogenous
 +  transformation matrix correct.
 + 
 +  Use as
 +    [volume] = ft_volumedownsample(cfg,​ mri)
 +  where the input mri should be a single anatomical volume that was
 +  for example read with <a href=/​reference/​ft_read_mri><​font color=green>​FT_READ_MRI</​font></​a>​ or should be a volumetric source
 +  reconstruction resulting from <a href=/​reference/​ft_sourceanalysis><​font color=green>​FT_SOURCEANALYSIS</​font></​a>​ or <a href=/​reference/​ft_sourceinterpolate><​font color=green>​FT_SOURCEINTERPOLATE</​font></​a>​.
 + 
 +  The configuration can contain
 +    cfg.downsample = integer number (default = 1, i.e. no downsampling)
 +    cfg.parameter ​ = string, data field to downsample (default = '​all'​)
 +    cfg.smooth ​    = '​no'​ or the FWHM of the gaussian kernel in voxels (default = '​no'​)
 +    cfg.keepinside = '​yes'​ or '​no',​ keep the inside/​outside labeling (default = '​yes'​)
 +    cfg.spmversion = string, '​spm2',​ '​spm8',​ '​spm12'​ (default = '​spm8'​)
 + 
 +  To facilitate data-handling and distributed computing you can use
 +    cfg.inputfile ​  ​= ​ ...
 +    cfg.outputfile ​ =  ...
 +  If you specify one of these (or both) the input data will be read from a *.mat
 +  file on disk and/or the output data will be written to a *.mat file. These mat
 +  files should contain only a single variable, corresponding with the
 +  input/​output structure.
 + 
 +  See also <a href=/​reference/​ft_sourceinterpolate><​font color=green>​FT_SOURCEINTERPOLATE</​font></​a>,​ <a href=/​reference/​ft_volumewrite><​font color=green>​FT_VOLUMEWRITE</​font></​a>​ and <a href=/​reference/​ft_volumenormalise><​font color=green>​FT_VOLUMENORMALISE</​font></​a>​
 +</​pre></​html>​