resample_image-methods: Resample an image

In neuroconductor/extrantsr: Extra Functions to Build on the 'ANTsR' Package

Description

Resamples an antsImage or nifti object

Usage

resample_image(
  img,
  parameters,
  parameter_type = c("mm", "voxels"),
  interpolator = c("nearestneighbor", "linear", "gaussian", "windowedsinc", "bspline"),
  ...
)

## S4 method for signature 'character'
resample_image(
  img,
  parameters,
  parameter_type = c("mm", "voxels"),
  interpolator = c("nearestneighbor", "linear", "gaussian", "windowedsinc", "bspline"),
  ...
)

## S4 method for signature 'nifti'
resample_image(
  img,
  parameters,
  parameter_type = c("mm", "voxels"),
  interpolator = c("nearestneighbor", "linear", "gaussian", "windowedsinc", "bspline"),
  ...
)

## S4 method for signature 'antsImage'
resample_image(
  img,
  parameters,
  parameter_type = c("mm", "voxels"),
  interpolator = c("nearestneighbor", "linear", "gaussian", "windowedsinc", "bspline"),
  ...
)

.resample_image(
  img,
  parameters,
  parameter_type = c("mm", "voxels"),
  interpolator = c("nearestneighbor", "linear", "gaussian", "windowedsinc", "bspline")
)

Arguments

img	character path of image or an object of class nifti, or antsImage
parameters	parameters to pass as resampleParams in resampleImage
parameter_type	Are the parameters in units of voxels or millimeters (mm)
interpolator	what type of interpolation should be done
...	not currently used

Value

An antsImage or nifti depending on input

Examples

library(oro.nifti)
library(extrantsr)
n = 30
x = nifti(array(rnorm(n^3*10), dim = c(n, n, n)))
res = resample_image(x, parameters = c(0.5, 0.5, 0.5))
res

neuroconductor/extrantsr documentation built on Sept. 28, 2020, 11:31 a.m.