Monash University (the institution I work at as a neuroscientist) decided to no longer provide academic researchers (staff and students) with Adobe Creative cloud (essential things like Illustrator and Adobe DC Pro) because they're "too expensive" for the budget. Staff and students are required to purchase said software out of their own wage. Meanwhile, the Vice Chancellor (on AUD 1.3 mil/year) was given a going away party, which cost  AUD 147,000. 

Alas, I need to re-learn how to do all my skills again on free alternatives (i.e., Inkscape and GIMP).

I need to know how to select a colour channel, add a layer mask to remove the background, and then change the colour of a neural spike trace response. here is what it should look like (see images):

Hi there, newbie here.
I am a very basic user, doing simple, repetitive tasks, which typically involve cropping an image to a rectangular aspect ratio of 1.308:1 but to different pixel sizes. The online service the pictures are intended for has a maximum file size of 187kb per image, so I then scale my images, which are of different file sizes (so I can't use a default percentage scale), possibly 2 or 3 times until it is just under 187kb. 
Is there an easier way to scale my cropped image to a fixed file size?
Many thanks,
Jules.

If you have lots of LUTs and you want to have a preview, then you can use this free program. Make a small crop or downsize a big photo if you want a fast preview.  

https://sourceforge.net/projects/bulk-luts-previewer/

   

Hello, i downloaded a PBR from the internet. but i want to change the color. in the description of the product it's said it can be done by adding a mask in the composite layers. idk how to do this, and i can rely on GIMP only, as i don't own photoshop. and paint.net doesn't do the trick. so is it possible to do this in GIMP, if yes how? here's the exact descriiption of the pbr so you have a better idea

Material of old painted boards. The color is green by default, it can be changed in Composite Layers using a mask (disabled by default and also not available in FBX)

Thank you

Hello again everyone!

I used a colorization affect in BIMP to change 16 of these gauge parts from this 

     

to this 
   

which is exactly what I wanted.

But now the difference between the 2 colors on the new circle part are not different enough to stand out well.

How can I batch alter just one of the 2 colors?

Thanks

Whenever I use the text tool, the point size defaults to 62.
How can I change that default to say 10 or 12?

With local download(*) links, thus you will get the explanations as well as all the scripts/plugins by clicking on these buttons, no need to say that the "search" and others things won't work, but for the basic browsing, reading help, downloading scripts and plugins, some PDF and few other things, it's fine.
For the images, you might need a connection as they are hosted on blogger.googleusercontent.com  
If someone knows a wget command to get them all from the original gimpscripts.net to get them on google, I'll pack them in.

It's over-there > https://filetransfer.io/data-package/6OXIXo62#link , unzip then open the folder and click on the "index.html"

(*) It's already on your hard drive, so it's not really "downloading" but you get it  

Hello to all!

Clipping highlights/shadows does not show up in Curves tool.
Clip warnings do show up in Levels tool.

Am I missing something? It has worked for me for 10+ years.

Gimp 2.10.36, flatpak update 2024.04.xx

Hello, I'm running GIMP on the following setup:

• OS: Manjaro Linux x86_64
  
• DE: Plasma 5.27.11
  
• Host: OMEN by HP Laptop 15-dc1xxx
  
• Kernel: 5.15.154-1-MANJARO
  
• CPU: Intel i7-9750H (12) @ 4.500GHz
  
• GPU: Intel CoffeeLake-H GT2 [UHD Graphics 630]
  
• GPU: NVIDIA GeForce GTX 1650 Mobile / Max-Q
  
• Memory: 3296MiB / 15804MiB
  

If I want to select an area which is bounded by a specific colored line (se the attached sample) how can I do that the easiest and with the greatest possible accuracy?

   

  Sample - Mark area to the red bounders.xcf (Size: 390.88 KB / Downloads: 17)