vol.overlay.colors.from.colortable: Compute voxel colors based on colortable.

In fsbrain: Managing and Visualizing Brain Surface Data

Compute voxel colors based on colortable.

Description

Use the intensity values of the voxels in volume and lookup the respective colors in a colortable.

Usage

vol.overlay.colors.from.colortable(
  volume,
  colortable,
  ignored_struct_indices = c(),
  ignored_struct_names = c("unknown", "Unknown")
)

Arguments

volume	numeric 3D array, the values should be integers present in the struct_index column of the colortable. All other values will be assigned NA as a color.
colortable	a colortable, as returned by read.fs.colortable, or a character string representing a path to a colortable file.
ignored_struct_indices	integer vector, struct_index entries in the colortable that should be ignored
ignored_struct_names	vector of character strings, struct_name entries in the colortable that should be ignored. Can be combined with ignored_struct_indices.

Value

character string 3D array, the colors. Voxels in the volume which were not matched by the colortable are set to NA in it.

fsbrain documentation built on Aug. 23, 2026, 5:06 p.m.