read.fs.colortable: Read colortable file in FreeSurfer ASCII LUT format.
In freesurferformats: Read and Write 'FreeSurfer' Neuroimaging File Formats

Description Usage Arguments Value See Also Examples

Read a colortable from a text file in FreeSurfer ASCII colortable lookup table (LUT) format. An example file is 'FREESURFER_HOME/FreeSurferColorLUT.txt'.

1	read.fs.colortable(filepath, compute_colorcode = FALSE)

`filepath,`	string. Full path to the output colormap file.
`compute_colorcode`	logical, indicates whether the unique color codes should be computed and added to the returned data.frame as an extra integer column named 'code'. Defaults to FALSE.

the data.frame that was read from the LUT file. It contains the following columns that were read from the file: 'struct_index': integer, index of the struct entry. 'struct_name': character string, the label name. 'r': integer in range 0-255, the RGBA color value for the red channel. 'g': same for green channel. 'b': same for blue channel. 'a': same for alpha (transparency) channel. If 'compute_colorcode' is TRUE, it also contains the following columns which were computed from the color values: 'code': integer, unique color identifier computed from the RGBA values.

Other atlas functions: colortable.from.annot(), read.fs.annot(), write.fs.annot.gii(), write.fs.annot(), write.fs.colortable()

Other colorLUT functions: colortable.from.annot(), write.fs.colortable()

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   lutfile = system.file("extdata", "colorlut.txt", package = "freesurferformats", mustWork = TRUE);
   colortable = read.fs.colortable(lutfile, compute_colorcode=TRUE);
   head(colortable);