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 Post subject: Interactive luminosity masks plugin for GIMP 3
PostPosted: Mon Sep 15, 2025 11:46 am  (#1) 
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Joined: Sep 12, 2025
Posts: 10
Hello everyone

I've developed a new luminosity masking plugin for GIMP 3. It's a complete rewrite, and interactive. I approached the rewrite with simplicity, ease of use, and obviousness in mind.

How it works: You choose from among 3 variations each of lights, midtones, or darks - you see a live preview as you choose. Then you fine tune the mask interactively with a live view, using a fine tuning dialog that applies levels as you wish. You can play around, reset, and restart the process. Finally it adds a luminosity mask layer with the luminosity mask attached.

It's supported for GIMP 3 in Linux and Windows. As for macOS, you're welcome to try it. But since Apple doesn't want to properly support industry-standard technology like GTK, the plugin will probably not work on a Mac. So I can't support it on that OS.

I'll record a tutorial of course. Even so, I hope it's self-explanatory as you use it.

It's available in the following languages:

Dutch (Nederlands)
English (English)
French (Français)
German (Deutsch)
Italian (Italiano)
Hungarian (Magyar)
Japanese (日本語)
Polish (Polski)
Portuguese (Português)
Spanish (Español)
Ukrainian (Українська)
Chinese (Simplified) (简体中文)
Chinese (Traditional) (繁體中文)

The plugin detects the language you're running GIMP in, and adjusts to it.

You can read more about the plugin and download it here:

https://www.chuckhenrich.com/gimp-inter ... sity-masks

This release is version 1.0 of the plugin. I'd appreciate any and all feedback!


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 Post subject: Re: Interactive luminosity masks plugin for GIMP 3
PostPosted: Mon Sep 15, 2025 12:47 pm  (#2) 
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Joined: Apr 11, 2024
Posts: 306
That's quite nice of you. But why do you need 5 the same posts for this?


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 Post subject: Re: Interactive luminosity masks plugin for GIMP 3
PostPosted: Mon Sep 15, 2025 6:54 pm  (#3) 
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Joined: May 16, 2010
Posts: 16125
I have removed all but the latest one.

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 Post subject: Re: Interactive luminosity masks plugin for GIMP 3
PostPosted: Tue Dec 16, 2025 9:03 am  (#4) 
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GimpChat Member

Joined: Sep 12, 2025
Posts: 10
Rod wrote:
I have removed all but the latest one.


Thank you! Newbie mistake on my part.


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