I've released version 1 of my Contact Sheet plug-in for GIMP 3:

https://www.chuckhenrich.com/contact-sheets-in-gimp-3/

Details are in the blog post. Here's a screenshot of the main dialog:



Supported languages are:

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

Many many thanks to Joe over at pixls.us for the inspiration, ideas, and robust testing!

Please let me know what you think. And if you have any suggestions, I'm all ears.

Using the pencil tool I created 10 big dots with the same Green en Blue value but with the Red value ranging from 10, 20, 30 etc to 100%, I used the Color Curve tool to modify the Red component only. While the colors on the screen truly reflect the changes, the Color Picker tool still shows exactly the same color as before applying the Curve Tool. I have to export the image and reload it into GIMP before I get the actual colors in the Color Picker tool. Am I missing something, or is this a bug?

I can not open raw files on gimp anymore, can anyone help me with this? I did install darktable but i do not have any idea how i can use it to make raw's open on gimp

(link to picture from the message i get)
https://imgur.com/a/Rvgsuxu

Hi
I wonder if I can get some recommendations for a Drawing tablet that is compatible, or just really good for GIMP.

I'm using GIMP 3.0 on Win 11, I've been using GIMP for a few year now on and off, for both artwork, and Photo editing. So I was wondering what Drawing Tablets others user use. There are so many choices out there, and having Googled the best choices for GIMP I'm still not sure what to purchase. I have a budget of around £50, and I know that probably limits me.

Thanks

Hi,

I'm interested in whether adjusting colour channels in Gimp can be used to detect chlorophyll emitted by biological life, or damp patches in roofs and masonry of buildings.

I've been experimenting with this but have found the results to be inconsistent. I've tried things like boosting the green in the green channel and the red in the red channel and also removing all the red and boosting the green in the red channel and removing all the green and boosting the red in the green channel etc.

I don't really understand what I'm doing with this.

Does anybody know whether this is a technique that could work in the diagnoses of damp related issues in buildings?

Any advice greatly appreciated!

Thanks,

I installed Gimp in early January of this year (2026) on a new Chromebook. I use to be able to launch and use it, but it no longer launches. The bar, at the bottom shows it attempting, but fails after a couple of minutes.

Its a new Chromebook. Model Asus CX15.

I had to install Linux first, so it runs under Linux. It no longer works.

I've used Gimp for a while, but only in the most rudimentary way.  I'm now trying something new for me that has me stumped. I've RTFM, searched online and watched YouTube vids, but I must be obtuse.

I have a scan containing two fragments of a document that I want to piece together. I successfully moved the fragments apart and now want to rotate each piece individually. I selected one piece using Tools->Selection Tools->Rectangular Select. Next I activated Tools->Transform Tools->Rotate. In Tool Options, I set Transform: Selection. I'm up to this step in the first screenshot. I enter a rotation, 90 degrees. I get a crawling ants frame that is otherwise all white. When I select Rotate, the blank white crawling ant frame remains. The originally selected region remains unchanged (second screenshot).

I'm sure I'm missing something obvious, but how do I accomplish the rotation I want?

-- Greg

Attached Files

Thumbnail(s)
       

This is with Gimp 3.0.8-2 and Darktable 5.4.1 on Windows 11. When I try to open an ARW raw from my Sony camera or a DNG raw from my Leica, Gimp starts Darktable and the images display in Darktable as I would expect. When I close Darktable it displays "Exporting to GIMP" on the screen, but I then just get an error dialog, and the image doesn't appear in Gimp. 

For ARW files, the error dialog is this:
   

For DNG files, the error dialog is this:
   

When I look at Gimp's preferences for Image import and export, the import options are set to this:
   

Any suggestions on a fix?

Hi there, I am working on extending GIMP with AI functions. I ditched Photoshop lately and my pals at the Photo Club keep telling me that I am a fool to have ditched PS with all it's nice AI functions. They shouldn't say that to me...

At this moment I've got AI Remove Background working, using IOPaint that runs locally on my laptop. It still needs some fine tuning, but it works.

Now I am working on 'inpaint' (filling a selection with a generated background). I am struggling now how to make a mask from a selection. The GIMP API has many procedures, but just copying a selection seems not to be easy. Is there anyone who has some experience with this?


P.S. I am new to Gimp Forum, so maybe I missed earlier questions/discussions like this.

Can we expect to see some of your plugins for gimp 3 anytime soon? I know it says on your site that the path plugins were still only for 2.10.
3 must have a plugin folder if it can support GMIC or does it need something else?