A selective plasma filter

Oregonian · **Posted:** Mon Oct 12, 2015 6:01 pm **(#1)**

Would it be possible to make a script that does what the plasma script does but in colors chosen by the user?

Perhaps make it so that it could use 2 or more colors?

I'm throwing it out there in case someone might be able to do it.

It sounds really hard to me but perhaps it would work.

Thanks!

Wallace · **Posted:** Mon Oct 12, 2015 7:29 pm **(#2)**

That's a good idea O! :bigthup

RobA · **Joined:** Jul 14, 2010 **Posts:** 697

You could try desaturating it then use a colour-map->gradient map to apply whatever gradient you want.

This will reduce the number of colours to 256, however.

-Rob A>

Oregonian · **Posted:** Mon Oct 12, 2015 10:51 pm **(#4)**

Thanks RobA. That works pretty good.
:bigthup

Wallace · **Posted:** Wed Oct 14, 2015 12:16 am **(#5)**

RobA wrote:

You could try desaturating it then use a colour-map->gradient map to apply whatever gradient you want.

This will reduce the number of colours to 256, however.

-Rob A>

That's such a simple yet effective solution.
That's RobA !
:jumpclap

Kimba · **Posted:** Wed Oct 14, 2015 1:45 pm **(#6)**

What a good idea. Thanks, RobA.

Erisian · **Posted:** Thu Oct 15, 2015 4:19 am **(#7)**

I believe plasma 2 ( viewtopic.php?f=9&t=494#p4677 ) does this but I don't know if it works with Gimp 2.8

Rod · **Joined:** May 16, 2010 **Posts:** 14709 **Location:** USA

Erisian wrote:

I believe plasma 2 ( viewtopic.php?f=9&t=494#p4677 ) does this but I don't know if it works with Gimp 2.8

viewtopic.php?f=9&t=494&start=40#p69410
For Windows and GIMP 2.8 64 bit.
Courtesy of Samj!

Live test.

lylejk · **Joined:** Sep 24, 2010 **Posts:** 12516

Forgotten all about plasma2. I've not added it to my GIMP since ol' Betsy died a year ago. I kept a folder of all the plugins and have been adding them one by one as I needed them. lol

Thanks for the reminder Erisian.

rich2005 · **Joined:** Mar 04, 2011 **Posts:** 2418

Plasma2 also works in linux and Gimp 2.8.14

As an alternative, remember there is a useful plasma filter in G'mic in the patterns section

Attachment:

gmic-plasma.jpg [ 33.23 KiB | Viewed 5772 times ]

Kimba · **Posted:** Thu Oct 15, 2015 7:36 pm **(#11)**

Plasma2's advantage is being able to pick a gradient. They are all useful in their own way.

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