Perform XOR/Exclusive Or operation on Images using FSL

Source: R/fslxor.R

This function calls fslmaths file -add file2 -bin after binarizing file and file2 using fslbin and then uses fsl_thresh to threshold any values greater than 1 back to zero.

fslxor(
  file,
  file2,
  outfile = NULL,
  retimg = TRUE,
  reorient = FALSE,
  intern = FALSE,
  ...
)

fsl_xor(..., outfile = tempfile(fileext = ".nii.gz"), retimg = FALSE)

Arguments

file

(character) input image

file2

(character) image to be XOR'd

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.

intern

(logical) to be passed to system

...

additional arguments passed to readnii.

Value

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

Note

Functions with underscores have different defaults and will return an output filename, so to be used for piping