[Matplotlib-devel] Gasoline Rainbow: a modernized prism colormap

[Michael J. Waters]

Hi Greg,

I think having monotonic luminance is good because the viewer still gets 
information on the overall position in the data set, not just local 
contrast (like with prism).  If there is sufficient interest, I could 
try constructing a new version that forgoes linear luminance for 
monotonic luminance but still is perceptually uniform.

-Mike


On 3/4/20 2:25 PM, Isaac Gerg wrote:
> I think its a good colormap for exploratory analysis.  I would include 
> it in the baseline.
>
> Lots of people bag on jet or rainbow but for exploratory analysis 
> where you have data of a large dynamic range, linear luminance is not 
> something you want.  I think this would be a good substitute.
>
> On Tue, Mar 3, 2020 at 1:32 PM Michael J. Waters 
> <waters.mike.j at gmail.com <mailto:waters.mike.j at gmail.com>> wrote:
>
>     Hi All,
>
>     I have developed a colormap, gasoline_rainbow, with high local
>     contrast
>     that is also perceptually uniform and linear luminant. It fulfills a
>     similar role as prism but has some non-local contrast due to it's
>     linear
>     luminance.
>
>     You can see it here:
>     https://gitlab.com/mjwaters/gasoline-rainbow-colormap/-/tree/master
>
>     Is there any interest in including this map in MPL?  I think it could
>     fill a role missing from the default options.
>
>     Cheers,
>
>     -Mike
>
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