Randomize Image based on Mask

Source: R/randomize_mask.R

Randomize the values within a mask

randomize_mask(img, mask)

Arguments

img

Object of class nifti with values to be randomized
mask

Binary mask indicating which values should be randomized.

Value

Object of class nifti

Examples

  set.seed(5)
  dims = rep(10, 3)
  arr = array(rnorm(prod(dims)), dim = dims)
  nim = oro.nifti::nifti(arr)
  mask = abs(nim) > 1
  randomize_mask(nim, mask)
#> NIfTI-1 format
#>   Type            : nifti
#>   Data Type       : 2 (UINT8)
#>   Bits per Pixel  : 8
#>   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