datatype: Change Data type for img

In neuroconductor/neurobase: 'Neuroconductor' Base Package with Helper Functions for 'nifti' Objects

Description

Tries to figure out the correct datatype for image. Useful for image masks - makes them binary if

Usage

datatyper(
  img,
  type_string = NULL,
  datatype = NULL,
  bitpix = NULL,
  trybyte = TRUE,
  warn = TRUE
)

Arguments

img	nifti object (or character of filename)
type_string	(NULL) character of datatype and bitpix. Supercedes both datatype and bitpix. If specified convert.datatype[[type_string]] and convert.bitpix[[type_string]] will be used.
datatype	(NULL) character of datatype see convert.datatype
bitpix	(NULL) character of bitpix see convert.bitpix
trybyte	(logical) Should you try to make a byte (UINT8) if image in c(0, 1)?
warn	Should a warning be issued if defaulting to FLOAT32?

Value

object of type nifti

Examples

img = nifti(array(rnorm(10^3, sd = 1000), dim = rep(10, 3)))
rimg = round(img)
newnii(datatyper(rimg))
rimg = datatyper(rimg, type_string= "FLOAT32")

neuroconductor/neurobase documentation built on May 19, 2021, 5:24 a.m.