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Selective color PS to GIMP
#3
(04-05-2024, 12:43 AM)Krikor Wrote: ...snip... - something that fixes a color and adjusts the colors in the CMYK standard.

How could I do this tutorial step using Gimp?

I am guessing that the PS tool also gives a real-time preview. Nothing I know of with Gimp or G'mic.

A possibility but a bit convoluted.

G'mic can decompose the RGB channels into layers. (edit: For that Yellow mix you would have to decompose to CMY) As an example putting those into a layer group. (maybe using Saul Goodes script )  Put the Red and Green layers into lighten mode and they combine back to the original image.

Now using G'mic Mixers[CMYK] on the relevant layer(s). 

example: https://i.imgur.com/ZUiK5oy.mp4

...and that sort of looks a little like that PS filter, but of course the parameters are different (not a percentage)

edit: Not with sliders but I often use G'mic color curves - the CMYK option for adjusting the image.

------
That is not going to fly Wink

I wonder what that PS filter actually does ? What is the end result of that PS video ?
Gimp is strictly RGB so adjusting Yellow using Magenta will affect both red and blue

   

So what is probably needed is some sort of mask separating yellow from the rest of the image.
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Messages In This Thread
Selective color PS to GIMP - by Krikor - 04-05-2024, 12:43 AM
RE: Selective color PS to GIMP - by sallyanne - 04-05-2024, 06:44 AM
RE: Selective color PS to GIMP - by rich2005 - 04-05-2024, 08:14 AM
RE: Selective color PS to GIMP - by Krikor - 04-06-2024, 01:14 PM
RE: Selective color PS to GIMP - by rich2005 - 04-06-2024, 01:44 PM
RE: Selective color PS to GIMP - by Krikor - 04-06-2024, 05:55 PM

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