write_ants_transform: Read and write an 'ITK'/'ANTs' affine transform
In ravetools: Signal and Image Processing Toolbox for Analyzing Intracranial Electroencephalography Data
View source: R/imaging-ants-io.R
write_ants_transform R Documentation
Read and write an 'ITK'/'ANTs' affine transform
Description
write_ants_transform stores a 4\times 4 RAS-to-RAS
affine (such as the transform returned by
register_volume3d) as an 'ITK' .mat file (a
'MATLAB' level-5 binary, LPS convention) compatible with
antsApplyTransforms. read_ants_transform reads such a file back
into a 4\times 4 RAS matrix. The reader folds a non-zero
ITK center of rotation into the translation, so transforms written by
'ANTs' are read correctly.
Usage
write_ants_transform(transform, file)
read_ants_transform(file)
Arguments
transform
a 4\times 4 (or 3\times 4) RAS affine
file
path to the .mat file
Value
write_ants_transform returns file invisibly;
read_ants_transform returns a 4\times 4 RAS matrix.
See Also
register_volume3d, save_registration
Examples
tf <- tempfile(fileext = ".mat")
m <- diag(4); m[1:3, 4] <- c(3, -2, 1)
write_ants_transform(m, tf)
read_ants_transform(tf)
ravetools documentation built on Aug. 21, 2026, 5:06 p.m.
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View source: R/imaging-ants-io.R
| write_ants_transform | R Documentation |
Read and write an 'ITK'/'ANTs' affine transform
Description
write_ants_transform stores a 4\times 4 RAS-to-RAS
affine (such as the transform returned by
register_volume3d) as an 'ITK' .mat file (a
'MATLAB' level-5 binary, LPS convention) compatible with
antsApplyTransforms. read_ants_transform reads such a file back
into a 4\times 4 RAS matrix. The reader folds a non-zero
ITK center of rotation into the translation, so transforms written by
'ANTs' are read correctly.
Usage
write_ants_transform(transform, file)
read_ants_transform(file)
Arguments
transform |
a |
file |
path to the |
Value
write_ants_transform returns file invisibly;
read_ants_transform returns a 4\times 4 RAS matrix.
See Also
register_volume3d, save_registration
Examples
tf <- tempfile(fileext = ".mat")
m <- diag(4); m[1:3, 4] <- c(3, -2, 1)
write_ants_transform(m, tf)
read_ants_transform(tf)
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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