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Read FreeSurfer LUT

Source: R/read_write.R
read_lut.Rd

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.

[Deprecated]

read_ctab() was renamed to read_lut() for consistency with get_lut(), write_lut(), is_lut(), lut_add(), and lut_combine().

Usage

read_lut(path)

read_ctab(path)

Arguments

path

Path to the LUT file.

Value

A data.frame with columns: idx, label, R, G, B, A, and optionally type when a 7th field is present.

See also

get_lut() to read and add hex colours, write_lut() to write, lut_add() and lut_combine() to build one up

Examples

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