[GRASS-user] Which colour palette is currently applied to a raster

[Moritz Lennert]

On 27/05/20 12:39, Paul Shapley wrote:
> 
> Hi Users,
> 
> How can I tell which colour palette set is currently applied to a raster 
> in Grass 7.8.3? nothing is stated in metadata and checked in 
> 'PERMANENT/colr' for colour palette 'name' but nothing.

Named color palettes are translated into numbers in color tables, some 
absolute, others relative to the maps content (color tables defined by 
percentages). AFAIK, there is currently no heuristic to translate the 
existing color table back into a named palette.

It probably shouldn't be to difficult to get r.colors to write the name 
of the used palette into the colr file, if a named palette was used 
(name could the be 'custom').

If you are not looking for the name of the palette, but just the color 
table itself, you can use r.colors.out.

Moritz