Change Data type for img

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

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))
#> NIfTI-1 format
#>   Type            : nifti
#>   Data Type       : 4 (INT16)
#>   Bits per Pixel  : 16
#>   Slice Code      : 0 (Unknown)
#>   Intent Code     : 0 (None)
#>   Qform Code      : 0 (Unknown)
#>   Sform Code      : 0 (Unknown)
#>   Dimension       : 10 x 10 x 10
#>   Pixel Dimension : 1 x 1 x 1
#>   Voxel Units     : Unknown
#>   Time Units      : Unknown
rimg = datatyper(rimg, type_string= "FLOAT32")