[Matplotlib-users] Trying to reproduce plot with a certain colormap

[Benjamin Root]

The CMYK converted jet still has a bright yellow in there that is not in
the one showed by Kris at all.

On Fri, Aug 11, 2017 at 3:53 PM, Jody Klymak <jklymak at uvic.ca> wrote:

> On 11 Aug 2017, at 12:17, Klymak Jody wrote:
>
> This image has pretty clearly been converted to CMYK hence the dullness.
> Pretty convinced that's what jet looks like after a CMYK conversion.
>
> See:
>
> https://gist.github.com/jklymak/744db8cc538e5757ecc4eb4977bff3a3
>
> CMYK conversion was done in Illustrator.
>
> You could still argue that matplotlib’s “jet” gets darker at the high reds
> and low blues, and maybe the cyan is more bright. But you have to be pretty
> careful w/ CMYK conversions because it depends on the profiles used etc
> etc. I’d buy the argument that this is a matlab jet versus a matplotlib
> jet, but I think most of the perceived difference is because a CMYK
> conversion happened somewhere along the way.
>
> Cheers, Jody
>
> PS, I note the image *says* that it is RGB, but then my converted image
> also says the same thing.
>
> Cheers. Jody
>
> Sent from my iPhone
>
> On Aug 11, 2017, at 11:51, "vincent.adrien at gmail.com" <
> vincent.adrien at gmail.com> wrote:
>
> Hi all,
>
> I agree with Ben that it does not look like jet to me: the bright light
> blue seems to be missing. FWIW, "Spectral" (with a capital S) might be the
> closest colormap among the built-in ones in Matplotlib, but it is still
> more “pastel-ish” than Kris´ example.
>
> Best,
> Adrien
>
> On 08/11/2017 11:43 AM, Benjamin Root wrote:
> Not jet, it doesn't go through cyan. Looks more like coolwarm, to me, or
> maybe RdYlGn_r (but the yellow isn't right, either...).
> I am also not completely convinced it was made in matplotlib. The 3d
> plot's projection isn't the same as mplot3d's projection.
> On Fri, Aug 11, 2017 at 2:34 PM, Jody Klymak <jklymak at uvic.ca <
> mailto:jklymak at uvic.ca <jklymak at uvic.ca>>> wrote:
> __
> Hi Kris,
> That one is called “jet”, though it looks like she applied a bit of
> a normalization to it to move the (green) center to lower values…
> https://matplotlib.org/users/colormapnorms.html
> <https://matplotlib.org/users/colormapnorms.html> (see the last
> subsection: “Two linear ranges”)
> Cheers, Jody
> On 11 Aug 2017, at 11:25, kgb2020 via Matplotlib-users wrote:
> Hello everybody,
> I have this figure done by a colleague quite a while ago in
> matplotlib:
> https://image.ibb.co/cxGKSF/tst0.png
> <https://image.ibb.co/cxGKSF/tst0.png>
> Unfortunately, I no longer have contact with my colleague to ask
> the particular colormap she used in matplotlib. I have looked
> through the gallery at
> https://matplotlib.org/examples/color/colormaps_reference.html
> <https://matplotlib.org/examples/color/colormaps_reference.html> but
> I am unable to find that colormap she used there.
> Can anybody recognize the colormap she used in that plot?
> Thank you!
> Best, Kris
> Sent with ProtonMail <https://protonmail.com> Secure Email.
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