Convert a declared transform output to another format — ni_convert

Reads a transform with ni_read_transform() and writes the same geometric mapping in another supported convention. Affine transforms can be converted among generic text, FSL FLIRT, ITK/ANTs, AFNI, FreeSurfer LTA, and X5. Warp and composite transforms can be written as X5; a single warp can also be written as an ANTs-compatible NIfTI vector field.

Usage

ni_convert_transform(
  result,
  path,
  format = c("generic", "fsl", "itk", "afni", "lta", "x5", "ants"),
  output_name = NULL,
  source_image = NULL,
  target_image = NULL,
  source = NULL,
  target = NULL,
  ...
)

Arguments

result: An ni_result object.
path: Destination file path.
format: Destination format.
output_name: Name of the transform output. May be omitted when exactly one resolved output is declared as a transform.
source_image, target_image: Optional image paths overriding the source and target images named in the spec metadata. These are mainly useful for FSL matrices, whose interpretation depends on both image geometries.
source, target: Optional source and target domain identifiers stored on the returned morphism. By default the corresponding image paths are used.
...: Additional arguments passed to the selected neurotransform reader.

Value

path, invisibly.