N3 or N4 Correct

This function wraps ANTsR bias field corrections and returns nifti objects

bias_correct(
  file,
  correction = c("N3", "N4", "n3", "n4"),
  outfile = NULL,
  retimg = TRUE,
  reorient = FALSE,
  shrinkfactor = "4",
  mask = NULL,
  verbose = TRUE,
  ...
)

bias_correct_ants(
  file,
  correction = c("N3", "N4", "n3", "n4"),
  shrinkfactor = "4",
  mask = NULL,
  verbose = TRUE,
  ...
)

Arguments

file	(character) image to be manipulated
correction	(character) N3 or N4 correction?
outfile	(character) resultant image name (optional)
retimg	(logical) return image of class nifti
reorient	(logical) If retimg, should file be reoriented when read in? Passed to readnii.
shrinkfactor	Shrink factor passed to n3BiasFieldCorrection
mask	Mask to pass to n4BiasFieldCorrection
verbose	print diagnostic output.
...	additional arguments passed to n3BiasFieldCorrection or n4BiasFieldCorrection

Value

If retimg then object of class nifti. Otherwise, Result from system command, depends if intern is TRUE or FALSE.