#' @title Zero pads an image
#'
#' @param img Array, class \code{\link{nifti}}, or
#' \code{antsImage}
#' @param ... Options to \code{\link[neurobase]{zero_pad}}
#' @return Object of class nifti, array, or \code{antsImage}
#' @export
zero_pad = function(img,
...){
if (is.antsImage(img)) {
arr = as.array(img)
res = neurobase::zero_pad(arr, ...)
res = as.antsImage(object = res, reference = img)
} else {
res = neurobase::zero_pad(img, ...)
}
return(res)
}
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