I have an indexed colour-mode picture. I am trying to rotate lots of little pieces of it. They all need to be rotated by 180 then returned to their original locations. It is very laborious. 

The process I am using it to elliptically highlight each little image inside the circle it appears in, then rotate it on the spot.

I have many problems causing to take far longer than I'd like.

One of them is that when I rotate an image on the spot it is sometimes no longer exactly where I'd like after it's rotated, so after the 180 degree rotate I then have to Move transform.

This is fine but hard to arrange each little symbol inside it's circle when it was nearly touching the sides before, any white I have selected overwrites the background. It would be better if I could select, rotate, move and paste with transparency so if I move the symbol close to its boundary the white area I have picked up with it doesn't overwrite the black background it's in.

I tried to set the white colour to transparent. When I do this is works until I have finished one manipulation and then want to flatten the image. When I do the transparent white becomes white again and I have to start the process again.

Can I just swap white in the palette for transparent so this doesn't happen? Or can I stop Gimp turning the transparent area back to white when I flatten it? Thank you.

Hello all, i'm new at this forum, 

i'm a person with special needs, and a long term linux user

i'm working at my daycare center with Gimp...

and Due Corona i'm at home as a lot of others

now my question
i've gotten into a 3 layers project... 

the goal is getting a giant bunny into a street photo 

so i did manage to cut the streets, and sky... and also get the giant bunny in the picture

i've added the alpha layer, did a search on YT and tried erasing the whole part of the sky and vice versa,

i wanted to be more precise and tried the inteligent scissors and that worked even better, and be able to get both sky and street in new layers
also with inverted mode it was a breeze to get both...
but now the part i'm really struggling with..
i cant get the edges exact due to the sometimes inacurate behavior of the intelligent scissors
so i'm kinda bummed out...

what steps do i have to do to make the whole picture better?

thanks a lot !

I have this image, that I want to make the blue color about 20 % or More transparent, so that you can see thru the color.
I  tried the "Color to alpha" option in GIMP, but it's not working.
How do i do it.

Hi fellow GIMP users. I posted the same question @gimpchat.com. I been having an error on the line (gimp-floating-sel-anchor floating-sel) "eval: unbound variable: floating-sel". what should I do. Please explain how can I avoid this error when I write other scripts. Thank you in advanced.

I have an image with 5 placeholder texts, and I've written a python function (I just copy-paste it in the console and then call it as needed) to change those texts and automatically export the image with a custom name. It works great, but I was planning on using the same function without needing to open GIMP at all.
Is there a way to make my script autonomous from GIMP?

Good Morning, 

I REALLY need someones help. 

I am trying to use GIMP to change the opacity of a image down to very low. But have text within the image, which contains the original opacity.

I have attached an image of a website who've done exactly what i'm attempted to do. As you can see in the example, the text is bright and vivid, using the images original colours. However the rest of the image is creates the more opaque background. 

Any ideas on HOW THE HELL to do this??? haha!

Many thanks

M    

Hello, I'm a teacher currently in online teaching mode because of current world events.

I thought since Gimp 2.10.8 comes preinstalled on our pupils computers I'd have them use it for art class. But many of them can't paint. Not using the mouse, nor the pencil that comes with the computer, nor by the touch screen.

Things I have tried:

Have them select all
Have them create a new layer
Check tool color, opacity, size and the actual brush
Check the dynamics settings
Reset tool settings
Restart


I had a pupil share screens with me so I could locate the issue but I could not find it, and it has not happened to me even though I'm on the same kind of computer as they are.

What I noticed when I looked at their screen was that when the left mouse button is pressed down the preview-ring showing where the tool is located gets stuck and will not move when the pupils then continue to move the mouse around.

Some pupils reported they can paint with the mousepad but not with the pencil for the computer.

Anyone have any ideas?

I'm a first time poster so please excuse me if this is already answered, I tried to find the answer here and elsewhere but no success yet.

Basically my problem is that I'd like to use my photos as Google Chromecast wallpapers, but many of them (100+) are in aspect ratios (and in many different resolutions) that are not quite 16:9, and in these cases Chromecast just pan & scans the photo. There's no other way to display the whole images than reprocessing them to 16:9, but I don't want to do this manually.

Is there a way to somehow automate this on GIMP?

The process, when done manually, is as follows:
  - Use calculator to multiply height of image by 1.7777.... (result = New Width)
  - Go to Layer > Canvas size, input New Width (width and height fields unbound)
  - Click "Center"
  - Fill with background color selected
  - Click "Resize"
  - Export as JPG with "_Wide" added to filename before the dot

Exporting & saving the resulting image doesn't have to be a part of the automation, but would surely be handy.

I know there's a scripting subsection here too, if a script is the way forward here sorry for posting in the wrong place -- I just don't know really anything about the scripts. I have written some Visual Basic macros though for Excel   

I'd be very grateful if someone could give me pointers! Any kind of method that would take away the manual calculation and canvas resizing would be terrific.

I have currently v. 2.10.10 on Windows 10.

Hi,

I have installed GIMP 2.10 for the first time on Linux Laptop. And I immediately made something wrong and the lower dock on the right dissappeared and the dock on the left it is showing on the right all the time.

Please how can I make the dock on the left again and bring back the one that dissappeared?

Thanks

In my next post I would like to upload a .xcf file and a one-page .pdf file. How do I do that? Is it done using the Attach procedure?

The .xcf file I mean to be downloadable, so that the reader can download it in order to experiment with the file in Gimp.

Can the .pdf file be attached as such or should it be zipped?

Or would some other method be preferable for sharing such files?