Read FreeSurfer color table

Read a FreeSurfer color lookup table file (e.g., FreeSurferColorLUT.txt or ASegStatsLUT.txt). These files map label indices to region names and RGBA colours.

Usage

read_ctab(path)

Arguments

path

Path to the color table file.

Value

A data.frame with columns: idx, label, R, G, B, A.

See also

get_ctab() to read and add hex colours, write_ctab() to write

Examples

ctab_file <- tempfile()
writeLines(c(
  "  0  Unknown                         0   0   0   0",
  "  1  Left-Cerebral-Cortex          205 130 176   0"
), ctab_file)
read_ctab(ctab_file)
#>   idx                label   R   G   B A
#> 1   0              Unknown   0   0   0 0
#> 2   1 Left-Cerebral-Cortex 205 130 176 0