Since I got a lot of help regarding GIMP brushes and how it works, I turned to Krita and really love how the brush and brush strokes work in it. The default brush set itself is impressive. I would like to ask whether there are any reliable free brush sets available for it. I am not much of an artist and mostly look forward to using interesting brush stroke images. It will be nice to get some help with this. Thanks.

So I am totally new to GIMP (or any other editing software).

I am attempting to clean up an image my daughter drew for use on redbubble.  I scanned the image she drew by hand, it scanned very well.  Now I need to remove the background so it can be printed on other than white items without a giant white box around the image.  I used the foreground select tool.  I will try to describe step by step what I did.

Open image.
Add Alpha Channel
Click on foreground select tool
Draw a "box" around image
Click Select in the Foreground Select Dialogue box
"Paint" in the image
Preview mask to verify image
Click Select in the Foreground Select Dialogue Box
Click Select > Invert
Hit Delete on Keyboard

At this point the background is checkered, so I think removed correctly.  From here I did the following:

1) saved as .xcf but redbubble cannot open .xcf files
2) exported as .jpg, but when I opened the .jpg in redbubble, the white box remained.

I am sure I am missing something terribly obvious but cannot figure out what I need to do to save a .jpg (or .png) with just the character (or transparent background) for use on redbubble.

Please help!

No time to explain (or see Wikipedia). See some results here.

Click for animation:


  TruchetAnim.webp (Size: 174.85 KB / Downloads: 313)

Hi everyone,

Nice to be posting for the first time on this forum.

I have recently upgraded my KDE Neon version to Ubuntu 20.04

Funnily enough, GIMP fails to open now and sends me a message telling me that GIMP requires at least version 0.4.22 or later

In the meantime I have installed the latest version of GEGL  ( see my log below) and yet GIMP is still asking me the same question.

sudo apt install gegl

lingyist@lingyist:~$ sudo apt install gegl
Lecture des listes de paquets... Fait
Construction de l'arbre des dépendances       
Lecture des informations d'état... Fait
Starting pkgProblemResolver with broken count: 0
Starting 2 pkgProblemResolver with broken count: 0
Done
Les paquets suivants ont été installés automatiquement et ne sont plus nécessaires :
  appimagelauncher digikam-data ffmpegthumbs kde-style-breeze-qt4 kf5-kdepim-apps-libs-data libastro1 libgrantlee-textdocument5 libkf5libkdepimakonadi5 libkf5parts-plugins libmarblewidget-qt5-28 libpoppler87
  libqt5serialport5 libshp2 libzip4 marble-data marble-plugins opencv-data phonon-backend-gstreamer python3-scour qapt-batch qml-module-qtwebkit scour xserver-xorg-video-intel-arbiter
  xserver-xorg-video-intel-native-modesetting
Veuillez utiliser « sudo apt autoremove » pour les supprimer.
Les paquets supplémentaires suivants seront installés :
  libspiro1
Les NOUVEAUX paquets suivants seront installés :
  gegl libspiro1
0 mis à jour, 2 nouvellement installés, 0 à enlever et 1 non mis à jour.
Il est nécessaire de prendre 39,7 ko dans les archives.
Après cette opération, 153 ko d'espace disque supplémentaires seront utilisés.
Souhaitez-vous continuer ? [O/n]
Réception de :1 http://fr.archive.ubuntu.com/ubuntu focal/universe amd64 libspiro1 amd64 1:20190731-2 [16,2 kB]
Réception de :2 http://fr.archive.ubuntu.com/ubuntu focal/universe amd64 gegl amd64 0.4.22-3 [23,4 kB]
39,7 ko réceptionnés en 0s (176 ko/s)
Sélection du paquet libspiro1:amd64 précédemment désélectionné.
(Lecture de la base de données... 212982 fichiers et répertoires déjà installés.)
Préparation du dépaquetage de .../libspiro1_1%3a20190731-2_amd64.deb ...
Dépaquetage de libspiro1:amd64 (1:20190731-2) ...
Sélection du paquet gegl précédemment désélectionné.
Préparation du dépaquetage de .../gegl_0.4.22-3_amd64.deb ...
Dépaquetage de gegl (0.4.22-3) ...
Paramétrage de libspiro1:amd64 (1:20190731-2) ...
Paramétrage de gegl (0.4.22-3) ...
Traitement des actions différées (« triggers ») pour man-db (2.9.1-1) ...
Traitement des actions différées (« triggers ») pour libc-bin (2.31-0ubuntu9) ...
lingyist@lingyist:~$

So why is this and what should I do to have GIMP recognize the change ?

Thank you so much

JeanA4

Hi all,

I have been trying to find image software for Ubuntu that can replicate a databending process I figured out on my mac. I used GraphicConverter 11 to import a .wav file as raw data, transferred the resulting image to GIMP and modified it, exported that as .bmp, and then used Audacity to import the .bmp's raw data, coming full circle back to audio.

I got my best results when I imported the data as a Grayscale image in Unsigned Long format.
   

With those specifications, aspects of the original file were recognizable in the altered version, and it was not totally destroyed. As a matter of fact, the end audio only differed significantly from the original if I actively edited it in image form (the IWarp effect is great for this). This process yields a very clean transfer.

I now have a new laptop with Lubuntu 18.04.5, for which GraphicConverter is not supported. I tried importing raw data with GIMP, but the import settings do not seem to include Grayscale or Unsigned Long. I've tried a few other image-editing applications, including Converseen, UFRaw, and RawTherapee, but I haven't found anything that will do what I need. Is there any way I can get GIMP to do this, and if not, is there another program for Ubuntu that may work instead?

This seems like it should be a standard use, so I'm sure this is just a setting I'm missing, but I can't figure this out. Any suggestions appreciated.
I have a group of photos of people taken against a blue background (although it's not completely uniform). I want to remove the backgrounds, so I just have the images as cutouts.
I've used the foregorund select tool to create a selection around the person, but whatever I do to then delete the background, some remnants of the blue remain. These are outside of the selection line, so I'm not sure why they are not deleted. Images below illustrate what I mean.
What I have tried:

1. Foreground select (based on Compound colours).
   
2. Remove holes.
   
3. Cut the selection.
   
4. Paste to new layer.
   
5. Delete old layer.
   

1. Foreground select (based on Compound colours).
   
2. Invert the selection.
   
3. Remove holes.
   
4. Add alpha channel to the layer.
   
5. Delete the (inverted) selection.
   

Hello!

I am new here and need some help!


So my wife made some tea dyied paper that I scanned... Problem is that because of the fluids the paper is not flat anymore.


You can clearly see it on the scan (shadows)

Now I tried a lot of youtube tutorials but it never fit my situation.


Does someone have a tip for me? A solution?

I would appreciate it very much!

EDIT: here is part of the picture attached


Best,
Pyrrhon

Attached Files

Thumbnail(s)
   

I have some images saved, in the past I reduced the size of the images a lot to save disk space (for example, I reduced an image from 3840x2160 to 1280x720, that is, 200% reduction).

Now I need to go back to the original size, and well, that's a problem, because I kept these images for other people, and these people want the original image (they cannot suspect that the image quality has been reduced).

I know it is impossible to increase with the original quality, but what is the best algorithm to increase the size of images in Gimp to get as close to the original? To me, NoHalo looks the best, the others seem to blur the image.

There are some sites that promise to increase quality using AI for free, but what is the guarantee of privacy? I don't want private images stored or posted around. And it is very suspicious of a website doing this for free.

Not that easy to code, but the results are worth it: