extract_coregistration: Extract transform in right-anterior-superior coordinate...

In rpyANTs: An Alternative Advanced Normalization Tools ('ANTs')

Extract transform in right-anterior-superior coordinate system

Description

Extract transform from 'ANTs' and moving image, save the transform matrices.

Usage

extract_coregistration(transform_path, moving_img, outprefix = NULL)

Arguments

transform_path	path to the transform ('ANTs_0GenericAffine.mat' matrix) file
moving_img	path to the moving image, for example, if 'CT' is aligned to 'T1w', then 'CT' is the moving image
outprefix	output prefix, where the matrices are saved to; default is at the same folder as transform_path

Value

A list of two matrices: new_sform is the new index to image transform (see 'sform' in 'NIfTI' header definition). This is a four-by-four matrix transforming from the voxel index (moving image) to the fixed image 'RAS' coordinates. ras_transform is a four-by-four matrix from the moving image to the fixed image in 'RAS' coordinates.

rpyANTs documentation built on Jan. 11, 2026, 5:06 p.m.