Controlling Hue Chroma ?

[Alpha504]

Hi,

I would like to modify the hue-chroma of some images.

I tried the following function:

Code:

(gimp-drawable-hue-chroma drawable MODE-REPLACE -60 20 0 100.0)

But it gives me an error:

Code:

Error: eval: unbound variable: gimp-drawable-hue-chroma

If someone knows which command to use and what are the parameters ?

[programmer_ceds]

(11-14-2024, 07:45 AM)Alpha504 Wrote: Hi,

I would like to modify the hue-chroma of some images.

I tried the following function:

Code:

(gimp-drawable-hue-chroma drawable MODE-REPLACE -60 20 0 100.0)

But it gives me an error:

Code:

Error: eval: unbound variable: gimp-drawable-hue-chroma

If someone knows which command to use and what are the parameters ?

There is no PDB function that contains chroma in its name. The nearest function is gimp-drawable-hue-saturation.

If you use "Filters/Script-Fu/Console" and click the "Browse..." button you can search for PDB functions by typing part of the name in the "Search:" box - you will then see which functions are associated with the part of the name that you entered and what the function parameters are.

[Ofnuts]

(11-14-2024, 07:45 AM)Alpha504 Wrote: Hi,

I would like to modify the hue-chroma of some images.

I tried the following function:

Code:

(gimp-drawable-hue-chroma drawable MODE-REPLACE -60 20 0 100.0)

But it gives me an error:

Code:

Error: eval: unbound variable: gimp-drawable-hue-chroma

If someone knows which command to use and what are the parameters ?

As the icon indicates, these filters are GEGL filters, and there is no easy way to call them in Gimp2.10 (some people did it, but it's not a pretty sight).

Things are somewhat easier (but not outright easy yet) in Gimp3+Python3. See this for instance.

Note that for such simple transforms, utilities such as ImageMagick or Python image libraries such as Pillow probably have the functionality.