Re: [matplotlib-devel] Matlab parula colormap

[Nathaniel S. <nj...@po...>]

On Tue, Oct 21, 2014 at 8:50 AM, Pierre Haessig
<pie...@cr...> wrote:
> Hi,
>
> Matlab is now shipping with a new default colormap, named "parula"
> [1,2]. It is meant to overcome the many issues of the current default
> "jet". It seems that the RGB values of this new colormap are already
> onnline [3].
>
> So my question is:
> * is it worth adding this parula in the Matplotlib colormap collection ?
> (I think it is)
> * is there any copyright issue with that ? (I have no idea how
> copyrightable a list of numbers is !)

The general rule is that copyright requires "creative expression".
This is a pretty marginal case at best, since that the colormap
appears to have been derived by solving an optimization problem, but
worst case we could always re-solve that optimization problem
ourselves. (I've played before with using CAM02-UCS to automatically
generate perceptually uniform colormaps - it's not terribly difficult
to do.)

-n

-- 
Nathaniel J. Smith
Postdoctoral researcher - Informatics - University of Edinburgh
http://vorpus.org