Questions about GIMP, the GNU Image Manipulation Program. It is a freely distributed piece of software for such tasks as photo retouching, image composition and image authoring. Ask scripting questions on Stack Overflow, software support questions on Super User, and anything related to design here ...

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6
votes
1answer
401 views

Highlight stray non-background pixels

I am editing an image in GIMP that has a few nearly-transparent (resp. very light) pixels scattered through an otherwise transparent (resp. pure white) background. Is there a command that will ...
6
votes
2answers
543 views

Speed effect on electrons - 3D

I'm preparing a cover image for a publication for a scientific journal. Instead of being scientifically rigourous, this kind of image could be more artistic and catch the reader's eye while conveying ...
5
votes
4answers
9k views

How can I create a multi-color blurred background?

I have seen an image with this background. As a newbie I am unable to get this multi colored mixed background. I am able to get just two colors and that too linearly with the Blend Tool. But that ...
5
votes
2answers
3k views

Gimp: removing background from product images

I often have the task of making the background of product images pure white. While preserving the best possible image quality, what is the quickest way to adjust colors such that the background ...
5
votes
3answers
7k views

In gimp : how to save the different layers of a design in separate files/images?

I wonder if there's a way in gimp to make the different layers of a design into separate image files without having to save the image each time. I hope this is clear. I use layers also as variations ...
5
votes
1answer
393 views

Create a clockwise gradient in GIMP

I was wondering if anyone knows a relatively easy way to create a clockwise gradient in GIMP. If you could imagine a vertical line 1ps wide (The length of the radius), and then rotate it 360 degrees, ...
5
votes
2answers
13k views

How to make circle with bordered boundary using ellipse tool

I am trying to make a simple "Q" logo in gimp. Instead of just typing the character "Q" in big font I am trying to make it using "Ellipse tool". However, I don't know how to make the borders of the ...
5
votes
3answers
997 views

Using imagemagick to create vibrant images

I'm in the process of helping out a friend who has a bunch of inventory pics. Most appear faded/washed out, and generally dull. I really like the effect as described here: ...
5
votes
2answers
430 views

How can I shrink these areas using gimp?

I have an imagemap. I want to shrink to areas that are pink and are overlays when hovering the mouse over the map to highlight the selected region. Now I can't seem to shrink the pink areas that are ...
5
votes
6answers
10k views

Good and Cheap alternatives to Photoshop for CMYK

I have been using GIMP for many years and do not want to go through the expense and learning curve issues of Creative Suite/Photoshop but occasionally I may need a CMYK file. Other than the ...
5
votes
1answer
2k views

Hard edges on bucket fill tool in Gimp

I am trying to fill a selected region using the bucket tool in Gimp. I want everything to have hard edges, no gradual shading unless I do it myself. However, when I fill the region I end up getting ...
5
votes
1answer
26k views

Make an outline with GIMP, like in Photoshop

How do I add a stroke to a layer in GIMP?
5
votes
1answer
5k views

Creating a shiny black plastic effect

I would like to create a rectangle that looks like it's made from a flat piece of shiny, polished black plastic. The kind of glossy surface that attracts fingerprints on modern electronics products - ...
5
votes
1answer
1k views

Chroma keying a background to a green screen animated GIF

There are some GIMP tutorials about adding a background for a green screen GIF, i.e. chroma keying. But none of them is about a green screen animated GIF (e.g. the "Confused Travolta" meme). GIMP can ...
5
votes
1answer
411 views

How to Match Skin Color Between Pictures Of The Same Person In GIMP

I have two pictures of the same person. Pictures were taken at same place but slightly different light were used in each one. I would like to adjust the skin color in one picture to match the other so ...
5
votes
1answer
7k views

Can GIMP open PSD files without any loss of information?

I'm a programmer for a website. Because the site looked kind of naff, we paid a graphics designer to do us a new design. He has just sent me sample images (.jpgs) and the .psd files they were ...
5
votes
2answers
156 views

How to change color of multiple text objects at once

I'm using GIMP and I have a lot of text object in a project that must have the same color. Every time I want to change this color I have to select the texts one by one and change it. Is there a way to ...
5
votes
2answers
4k views

GIMP: the closest thing to Photoshop's smart object?

I've been learning GIMP as an alternative to Photoshop, which I haven't been using for design purposes for more than 5 years now. I discovered that there is a new interesting thing called the smart ...
5
votes
1answer
221 views

Batch oilify in GIMP

I'm pretty new to image editing. I want to be able to batch oilify a number of images. However, I can't find a GUI option in GIMP to do this. In the filters menu there is a Batch process.. option, ...
5
votes
2answers
414 views

Executing multiple commands in sequence in GIMP

I've been working with GIMP for some time now and at the moment I'm creating some wood graphics for a game. For creating the wood, I first fill the image in brown, then apply some filters and finally ...
4
votes
3answers
277 views

Should I scale an image first, or index it?

I have an image, it's the Backtrack_5_PitchBlack.jpg found at http://www.backtrack-linux.org/screenshots/, and I'd like to get it down to 640*480 for a Grub4DOS splash screen. Unfortunately, this also ...
4
votes
4answers
24k views

How to sharpen text in GIMP?

I have two layers. Layer one has the background image (some landscape) and layer two is colored. Layer two is above and I insert a text on top of layer two and merge it with layer two and then set ...
4
votes
4answers
2k views

Forget alpha instead of blending it in Gimp

It's now second time I need this so I'm posting it as a question: When a layer has alpha channel, some pixels may be transparent. I want to totally forget about the transparency. That means, render ...
4
votes
2answers
1k views

Command line interface-based way to desaturate and posterize an image?

This is by far my most common task, and I'd say I've wasted about 1000 mouse clicks on it in my raster-based program. Because it's so common for me to start off desaturating an image and then ...
4
votes
2answers
1k views

Restore image with negative colors

I have an image that was taken using a negative color filter long ago, but now I need the normal picture, is there a way to get a good quality of that picture with the actual colors? The current ...
4
votes
2answers
237 views

When saving an image as a PNG or JPEG, does photoshop/GIMP only save the top layers or all the data?

I need to send a file to someone but it has sensitive information on it that I would not like to share. I was going to just scan the document and edit out the sensitive information with a layer ...
4
votes
2answers
1k views

How to make PNG-quality animations in GIF format?

I've noticed more and more sites using animated GIFs that have PNG quality. You'd think they're the latter if you didn't check the image info. The lines are crisp, the colors look great, there's none ...
4
votes
1answer
5k views

Why is the Gimp selection pane not going away?

I needed to move something so I copied it and pasted it to its new location and now where I have pasted it there is a selection pane that will not go away. I've tried to move the pane and tried the ...
4
votes
5answers
2k views

Convert foreground motif to degrees of transparency?

I have a 24-bit PNG where the motif is a subtle pattern. The pattern itself is in light greys, i.e. the background color of the PNG is #eee and the pattern is in a range of slightly darker greys. I ...
4
votes
3answers
3k views

Export PNG image without alpha channel in GIMP

How do I export a PNG image without alpha channel in GIMP? I have checked a lot, but I can’t find this. I found an option to export PNG images without alpha channel in Inkscape, but I am not familiar ...
4
votes
3answers
4k views

Why can't the GIMP align tool select some layers?

When I try to align various layers in GIMP 2.8, sometimes the align tool selects the entire image, not the layer I clicked on. It doesn't matter how many times I try, and closing/reopening doesn't ...
4
votes
1answer
1k views

Can I predefine brushes with color and size in Gimp?

I sometimes find myself using Gimp the way I would use paper. For example, I want to use blue ink size 1.4, anthracite 2-px pencil and size 20 eraser, to recreate the look of a school notebook. I ...
4
votes
2answers
12k views

GIMP: How to crop a layer?

I have a screenshot where I want only a part of the pasted image, and I want to turn the white that's in it transparent. First I need to crop the pasted image. I have selected the layer and a ...
4
votes
4answers
1k views

Gimp grid strange behavior - feature or bug?

When I create a grid in Gimp (a 32x32px grid with 0x0px offset), the distance between the top edge of the image, and the first grid line, is 31 pixels, almost like the grid starts one pixel above the ...
4
votes
3answers
134 views

Why is GIMP's rendering fonts differently than other applications?

I noticed that if I compare the same font-family and font-size from other applications to GIMP, the output is different. In the image below, on the left is 8pt Microsoft Sans Serif rendered in Word ...
4
votes
1answer
164 views

Make a random dispersion of images

I got a lot of unique images, so my goal is distribute all that images randomly and apply randomly scale and rotation transformations. Like these So which is the best way to achieve these ? I use ...
4
votes
1answer
6k views

How to create Android PNG Icons from an SVG using GIMP

I'm pretty much a graphics design noob, as you can tell by this very basic question. What I am trying to achieve is to create a set of Android icons from an SVG file that I have. In case you didn't ...
4
votes
2answers
7k views

How do I make a 2D texture into a banner/flag that looks like it is folding from a breeze?

I've got a 2D image and I want to transform it into something that looks like a single frame from an animation of that logo on fabric catching just a bit of breeze. I'm not an artist so don't have ...
4
votes
1answer
1k views

Tutorial on how to create a flowing thread

I'm looking for a tutorial to create wavy flowing threads. Like this: I'm open to tutorials in Photoshop, GIMP, or any freeware image manipulation program. We have a copy of PS. I'm not sure if ...
4
votes
2answers
4k views

How to remove background with Gimp?

How to remove background from an image with Gimp?
4
votes
2answers
622 views

How can I select the convex hull of an existing selection?

I'm trying to remove blue skies with clouds quickly from many images. I've used gimp's Color Selection Tool, which selects the sky but not the clouds. Since all clouds are in the sky, if I could ...
4
votes
2answers
13k views

Is it possible to add a background image to all 'layers' of an animated gif?

I have an animated gif with transparent background, and I want to add a background image to all layers: How can I achieve it without adding it to every layer individually?
4
votes
2answers
19k views

Remove white thin border from exported PNG from Photoshop

I have a branding logo saved as a PSD Photoshop file. I'm exporting it to the PNG format with relevant size, but the exported PNG image has a thin white border around the logo. How can I remove this ...
4
votes
1answer
1k views

How to create the round/rectangle dialog on GIMP or Photoshop?

How do you design that bubble?: I tried to use a rectangle and a rounded shape but didn't work out nicely. Would be really nice if someone can point out (or if this kind of shape already exist!).
4
votes
2answers
825 views

How to show boundary of every layer in Gimp?

Using Gimp, I am working on a sprite image made of lots of icons, each on a separate layer. I would like to check that there is no overlap by displaying the outline of all layers. There is an option ...
4
votes
1answer
94 views

How to color pictures to pastel?

I wanted to ask you how I can (re-)color pictures. I use Gimp, but I guess the functions of Photoshop/Paint Tool Sai/etc. aren't that different, just easier to find. First, as an example, this is the ...
4
votes
1answer
145 views

GIMP: Stroke Path along single points

What I need: to draw different sets of icons in the same points of the picture (with the purpose of drawing different network schemes with the same structure). There are A LOT OF Points. Therefore I ...
4
votes
1answer
716 views

In gimp how can I get the edges of a filled rectangle selection to look like a painted area?

How can I get a paint colorblock effect on the edges similar to what is on the edges of the red portion of Saul Bass's One Two Three poster? I have two layers, one is a background that is white. The ...
4
votes
1answer
706 views

How do I do Ctrl-Left-Click operations in GIMP on Mac OS X?

When you ctrl+ left-Click, it's like a right-click in Mac OS X and brings up a menu. I'm trying to clone a selected rectangle as shown here But if I ctrl+alt+ click, I just get a context menu ...
4
votes
2answers
311 views

How to shade region under a mathematical curve?

I want to show the effect of threshold on FAR and FRR( basically the region under a curve with when the x-range is bounded ). To do that I need to do something like this!! image If the threshold is ...