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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1answer
411 views

How can I create the illusion of movement with GIMP?

I am using GIMP to edit my images. I have a regular playing card from a top down, 2D view. I want it to appear as though it were being tossed very quickly. I wanted to remove the top down view and ...
3
votes
2answers
3k views

How can I accurately draw a mockup for an iPhone 5 app in GIMP?

In the Appstore you can show screenshots of what the app looks like to the user so they know what to expect. I am looking into creating an image from scratch of a screenshot of an app. Here's my ...
3
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4answers
2k views

Remove white part of every color to make lighter parts more transparent

My problem is so general, and there are version-dependent plug-ins for the problem not working with my version. I also found workarounds that are not the correct solutions. I would to convert my ...
3
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2answers
11k 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 ...
3
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1answer
2k views

how do I import a vector path from Inkscape into Gimp?

I'd like to take an SVG clipart, pull out particular paths from it, and bring them into Gimp and use them to create selections and/or to stroke. Nothing I've tried seems to work -- even though Gimp ...
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2answers
1k views

Reverse-engineer alpha channel

This is something that I stumble over occasionally. I have an image that was clearly created using some form of blending / alpha channel magic, usually for things like smooth edges. For example: ...
3
votes
1answer
623 views

Letterpress effect with an inside glow

I have been using a letterpress effect on the buttons and titles of my website to great effect, but now I'm trying to incorporate a glow effect for mouse overs and such. I have been trying to ...
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3answers
1k views

How to draw 3 overlapping circles with different colors?

Is there a free software to draw following in ubuntu? How to color the overlap zone? I am not able to figure this out in GIMP.
3
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1answer
570 views

Removing a grid from an image

I'm doing some image processing to detect bubbles in oil. One of the filters I use creates a grid in my image. If you look closely at the image you can see horizontal and vertical lines through the ...
3
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3answers
592 views

How do I create an abstract image with a color gradient with Gimp?

I want to create an image that looks like this: How can I recreate this effects, or what terms should I use for finding better results?
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2answers
961 views

Separating a stock photograph from background

I purchased some stock images for a website I'm building (I'm a programmer, with relatively no design experience at all). The issue at hand is, like most stock images, the images I purchased are on ...
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2answers
2k views

What's the best way to create a subtle, barely noticeable texture? [closed]

Using Gimp (or other free software), how would I go about creating a subtle, "mild" texture, like the green in the header at forrst, or the gray in the background of the backbone.js home page? Those ...
3
votes
2answers
82 views

Batch replace image color

I have plenty of images made up with the same color, just like those: Now what I want is to change their "main" color from "#3d507d" to "#7C0A0A". I tried to do that by changing the ...
3
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1answer
36 views

How can I modify a GIF that uses “cumulative layers”?

When you save a GIF in GIMP, you're given the option to use cumulative layers (combine) or one frame per layer (replace). Choosing cumulative layers causes the GIF's layers to only contain the pixels ...
3
votes
1answer
45 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 ...
3
votes
2answers
288 views

In GIMP, how can I change one solid colors to multiple color variations?

I'm not really sure how to ask this in words, but I used to use a program along time ago that would change one solid color into multiple variations. Say I have a solid red square, but I want it to be ...
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2answers
2k 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 ...
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3answers
783 views

How to colorize a layer with semi transparent borders to a specific color in GIMP?

I have an white icon that needs to be colorized to a specific color. How do I do it in GIMP? Keep in mind that it has semi transparent borders and transparent background, so using the bucket or ...
3
votes
2answers
462 views

Automatically remove overlays from a set of identical images using Gimp

I have a number of images that have all the same background but each has different text overlaid (they are covers of a magazine journal). I don't have access to the background image, but I know that ...
3
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1answer
3k views

Portable file format to export Photoshop layers

I'm working on web-apps and frequently have to slice designer-made PSD files as HTML. However, I'm a GNU/Linux user, and in Gimp, PSD files look different than in Photoshop, so I'm forced to use a ...
3
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2answers
5k views

10 pixel square brush in Gimp… how?

I need a brush that is exactly 10x10 pixels. Here is what I have tried so far: creating a brush with a radius of 5. This, of course, results in a brush that is more than 10 pixels wide creating a ...
3
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1answer
23 views

GIMP: select a border in layer A and fill it in layer B

I would like to separate the fill from the shape. So, I would like to select the shape (the border of a selection) in layer A, and fill this selection with color in another layer B. Is it possible ...
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2answers
95 views

How to create an 16× error/difference image using GIMP or Photoshop

I need to create a quality comparison between two rendering methods by showing the difference of the results akin to figure 6 in [Walter et al. 2005] (p. 5): (Image copyright by Walter et al. 2005). ...
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3answers
6k views

Annoying GIMP issue (fill bucket with a circle-slash icon on the cursor)

I am trying to bucket fill a layer, but I get this crazy cursor I cant get rid of. I think its because I have something selected. I tired Select All, Select None, but the cursor does not change. I ...
3
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1answer
167 views

Gimp: export XCF as a list of commands?

It took me a lot of time to create a graphic in GIMP, and now I need to make some variations of the same graphic that actually only require the change of the FG color twice in the process. The GIMP ...
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votes
3answers
2k views

Turn semitransparent PNG image into a white silhouette, preserving transparency

I have an PNG image like this with a transparent background: How can I change the image color to white, and keep the transparent background in GIMP? The desired result is a white silhouette on a ...
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3answers
15k 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 ...
2
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3answers
523 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 ...
2
votes
2answers
83 views

Copying & Pasting inverted image in GIMP

I have a basic image that is black on a white background. I simply want to invert the image, take the now white portion and paste it on another image in GIMP. I am having no luck. Within GIMP, I ...
2
votes
1answer
118 views

How to create uniform dashes in GIMP

I want to make a bunch of dashes that are 10 pixels long horizontally, 5 pixels long vertically, and separated by 20 pixels. Is there any way to do this easily in GIMP? I was looking at slice, but ...
2
votes
2answers
261 views

Simplifying an initial before tracing it

In order to trace an initial to make a font, I need to simplify the original picture as much as possible. I've already vectorized it, but I wonder how I could clean it up a bit more to make it easier ...
2
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3answers
1k views

Automating the Creation of Geometric Shapes?

How can I draw geometric shapes, or other regular shapes, such as a gear, using macros or scripts? I'd like to experiment with creating games by combining elements, similar to geoDefense: ...
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votes
2answers
3k views

How to form semi-circular text in gimp or photoshop?

I am not trying to wrap text around a semi-circle but form a semi-circle with text. Basically the font will gradually increase from left to middle and then decrease from middle to right. Can ...
2
votes
1answer
3k views

How to get smooth transitions between colors while keeping sharp edges?

I am trying to smooth out images of colored wave forms while trying to keep sharp edges. Example of a source image: I've had some limited success using surface blur, while the transitions between ...
2
votes
3answers
2k 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 ...
2
votes
2answers
1k views

How to edit an animated gif in gimp to include transparency?

I have an ajax spinner which unfortunately has a white background in the corners. I want to remove the white and make it transparent using GIMP. How can I go about doing that? I tried opening it in ...
2
votes
1answer
2k views

City map making (cartography) with GIMP.

Does anyone know of good city specific (although I would be interested in others as well) plug-ins for fantasy role playing game map making using GIMP? I am more looking at macro-scale (so whole ...
2
votes
1answer
46 views

Drag to resize canvas size in GIMP the way I do it in MSPaint?

Any time I prefer Microsoft Paint over GIMP it's because in Paint you can simply and swiftly drag the canvas borders to enlarge it or crop it. I cannot understand why this feature is lacking in other ...
2
votes
2answers
351 views

Gimp 2.6.12: modify alpha channel while preserving color

This is for a video game in which a specularity mask is in the alpha channel of the normalmap. I need to create an image where the alpha value for some pixels are 0 (to indicate no specularity,) but ...
2
votes
4answers
121 views

How can I beat the browser when it comes to reducing image size?

Can't get my head around this. I tried several ways to reduce the pixel size of a logo in Gimp. However, the browser (either safari, firefox or chrome on my iMac) is always amazingly better reducing ...
2
votes
1answer
79 views

Getting GIMP to recognize content outside old borders

I've been trying to create an image showing mitoxantrone (a chemo drug) intercalating DNA, as part of this I've had to combine two structures -- a DNA strand with the molecule found therein and the ...
2
votes
2answers
62 views

GIMP: Paint a selection and maintain various levels of opacity

I'm trying to recolor a png file using GIMP. The image I want to recolor is a solid color, but the edges are feathered with varying degrees of opacity to make the final image look smoother. is there ...
2
votes
1answer
727 views

How to have numerous text items on one layer in Gimp?

I'm making a map in Gimp. I want to have the following layers: background cities rivers mountains So I want, say, 30 cities on one layer so that I can turn it off and on. However, every time I ...
2
votes
2answers
877 views

Plugin or brush for transforming a photo to a fractal in gimp?

Folks, I've been looking all over for a plugin or brush that will help me take a photo and reduce it to that 'electric look' (or fractal?) that i'm seeing in various places. I'd vastly prefer one for ...
2
votes
2answers
2k views

Draw pencil-stroke like line in Gimp

I found this pencil stroke is very fancy and I wondered how it can be emulated in Gimp or Photoshop. Actually I found pencil drawing is really fascinating and I hope to learn more about it. I will ...
2
votes
4answers
2k views

How do you get transparent colour on Gimp?

In the colour selection I have been searching for a transparent option, but I can't find one. How can I do it?
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2answers
1k views

Using GIMP, given a black text on a white area having some grayish smudges, how do I remove everything except the text?

Using GIMP, given a black text on a white area having some grayish smudges, how do I remove everything except the text? for example this image, has gray outline around the text at places, I tried ...
2
votes
1answer
4k views

How can I change the opacity of a pasted gif in GIMP?

I have two gifs. I'd like to put one gif on top of the other, but with low opacity. This is what I did: open gif1. create a new layer paste gif2 onto the layer change the opacity of the layer The ...
2
votes
1answer
52 views

editing several hundred images - GIMP

I'm working on a project that requires me to change several hundred images(somewhere around 550). They're all the same size and type. Each image needs several color corrections. Initially I use color ...
2
votes
1answer
17 views

Is possible to duplicate 2 o more layers at a time in GIMP?

I made a design with 7 layers, and now I have to do another one very similar but with different attributes (text, color, size,etc). I know I can duplicate each layer, but can I duplicate 2 or more of ...