Gets Image Length in Each Dimension — img

Multiplies the number of slices by the voxel resolution for each direction.

img_length(img, units = c("mm", "cm"))

Arguments

img	Image object, any method with `voxdim` and `dim_`
units	output unit, either cubic mm or cubic cm.

Scalar numeric, one number, in mm or cm.

nim <- nifti(array(rnorm(10^3), dim = c(5, 2, 100)),
pixdim = c(1, 0.5, 0.2, 1))
img_length(nim) 
#> [1]   2.5   0.4 100.0