Help with functions

[chlebna]

Hello,


do you know if it is possible to script funciton:

colors - desaturate - color to grey?

I didn t find it

as well as: colors- Color temerature


Thanks for your help

[Ofnuts]

In python, either:

Code:

pdb.gimp_desaturate(drawable)
pdb.gimp_desaturate_full(drawable, desaturate_mode)

(and essentially the same in script-fu)

I have no "Color>Color temperature" in my Gimp, it must be an add-on script/plugin? I can't answer without seeing it.

[dinasset]

There is one by Luca de Alfaro: (under Filters/Colors/ convert color temperature
"script-fu-colortemp"
---------------------------------------------------------------------------
"; Colortemp is a script for The GIMP
;
; Description: converts the color temperature of an image
;
; Last changed: Feb 25, 2009
;
; Copyright © 2006-2009 Luca de Alfaro <lda@dealfaro.org>
----------------------------------------------------------------------------

---

...and one by elsamuko

"elsamuko-temperature.exe"

---

here de Alfaro's one:
   

---

...and this is elsamuko's one: (under Colours / Color temperature...)
   

[rich2005]

@Ofnuts, Dinasset

I think the OP is using the development Gimp 2.9.x

Both of those are GEGL functions.

screenshopt https://i.imgur.com/rF5tE8Y.jpg

[chlebna]

Thanks for a respond guys.

I am using 2.9.6 GIMP
There is this option "Color to Gray" as it create 3D like structure out of picture. So just desaturation isn t enough for my case. It iseems it is part of GEGl operations integrated into menu.

What I don t understand - why isn t it possible to use GEGl functions in scripting - it makes it quite limitable.


temperature color - I didn t find function for input of stable values as I need it for batch processing.


Thanks

[Ofnuts]

Tools>GEGL functions in Gimp allow people to experiment/debug with things that will be in 2.10. They aren't always fit for everyday consumption. In particular gegl-c2g is a performance hog. And it doesn't really create a 3D look, is mostly increases local contrast. You can use it to do a poor man's HDR: duplicate layer, do c2g on the bottom one, and set top (unchanged) layer to "color" mode.

2.9.x is work-in-progress, you can't complain that you cannot use the bathroom in a house that is still being built

This said, there are very many ways to do thing in Gimp, if you stated the original problem maybe we could come up  with a solution that doesn't involve functionality that doesn't exist (yet).