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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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 ...
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61 views

Is selective blur (this GIMP's one) available in Photoshop?

Here's how it looks like: http://docs.gimp.org/en/plug-in-sel-gauss.html It automatically blurs blurred parts of image, but preserving crisp edges and contrast. Is it available in Photoshop?
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243 views

GIMP transparency is not working

I followed this tutorial on GIMP to make an image transparent. Here is a snippet of the original image opened inside Windows Image Viewer (so the grey background is part of Windows Image Viewer, I ...
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107 views

Given an image modification on Gimp, how to obtain the convolution matrix

In Gimp, there is a convolution matrix tool which lets the user define his own convolution matrix, and then see the result on the image. I am writing software for image classification, and I need to ...
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121 views

Map borders on GIMP

I'm trying to create a map for Risk. I found an image scouring the Internet that fits what I want perfectly, except instead of having borders, each province is just a different color. I would like to ...
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298 views

Keeping colors on an image while setting full transparency

I would like to create an image from a map, where each country is colored in a different color, where the frontiers are in black, and in which each color except black is fully transparent, while not ...
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173 views

GIMP: Possible to remove middle in picture? [duplicate]

As an example, is there an easy way to crop away the o's in the Google logo using Gimp? The result should then be "Ggle" with a smaller image width than the original because the o's are missing.
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2answers
508 views

Mathematical operations such as “Reflection in Line” with FOSS Linux tools such as Inkscape, Gimp or Blender?

In Gimp, I could do this by "Layer/Transform/180 rotation" and then "Layer/Transform/Flip vertically" -- and then with some mouse, putting things together but it is slow. I am now looking for simpler ...
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575 views

GIMP: find midpoint / arbitrary division between two points

How do I find the middle, or n/th division or percentage of distance between two arbitrary points in GIMP? Like, I have an object / a line of arbitrary length / two guides, placed in arbitrary place ...
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2k views

How do I create a rectangle with a trapezoid bottom in gimp?

Using gimp 2.6.11 on Windows. How do I create a rectangle with a trapezoid bottom? I understand to make shapes I should make a selection and then stroke it, but how do I make a selection of this ...
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895 views

How to mimic this text in Gimp?

I found this really cool text, and would like to use the style but for a different word. How can I do it in GIMP or pixlr.com?
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1k views

Fixing fuzzy text in an icon?

I have an icon that looks like it was shrunk from a larger image. How can I easily clean up the text to make it look sharper?
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50 views

How to Select by Color WELL?

In Gimp (2.8.10) when I use the Select by Color tool it frequently selects bits of color physically distant from the area I'm trying to select. For example I'm trying to select the color of a shirt ...
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48 views

Is there a Photoshop equivalent to Gimp's Bump Map filter?

I'm following a tutorial on fantasy cartography. It was written for Gimp, and I've been figuring out how to convert the steps to Photoshop (CS6) as I go along. The step "Bump Mapping your Height ...
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34 views

Is there any way to change a color without affecting its brightness in GIMP?

I'm trying to find out because I'm making a mod for Minecraft and I'm trying to keep the regular brightness variations
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31 views

How Can I View Applied Filters in Gimp

I would like to see the filters that are applied to a (text or image) layer in GIMP. Is this possible? Thanks in advance
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47 views

Gimp – blend between layers controlled by a heightmap

Suppose, I have a gray-scaled height map and ten layers with different diffuse textures or solid color textures. I would like to blend these texture layers in a way determined by the heightmap, as ...
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22 views

How do I unselect items in GIMP?

I'm currently using GIMP to add text captions and lines into a screenshot. The problem is that once I finished one caption I couldn't add any more lines (using the Paint Brush tool). If I close the ...
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206 views

How do I insert arrows into a picture in GIMP?

I'd like to insert perfect arrows (the sort you can make using Inkscape: straight, symmetric tips, of customizable width and length, etc.) into images in GIMP. At the moment the closest thing to this ...
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108 views

How to match brightness between two different images using GIMP (Mac OSX)?

I took two pictures with my iPhone, one during the day and one at night. How do I make it such that the two images look like they were taken at the same time of day? Is there a compare two images ...
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106 views

How do you describe the color characteristics of this gif palette and how do you change it?

Substrate by Jared Tarbell is a procedural art work in the Processing language that I'm discovering again. Here is a screenshot of the program's execution on my computer: The program uses a .gif ...
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30 views

How can I modify text/shapes created early and have effects previously built on those elements propagate automatically?

I have an image with the effect of wooden text inlaid within another species of wood. I would now like to change the text. However, I would then need to reapply all of the layer masking, resizing ...
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2answers
184 views

How do I further remove this background?

So, I have removed the background of the logo for my site, but the background of my site is a dark grey. As a result, the logo has a white border around it that looks messy. I use GIMP for editing and ...
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2answers
155 views

.png's made in GIMP not coming out transparent

I've had this happen with more than one image lately. I open an image in GIMP with the purpose of making the background transparent. The first thing I do is Add Alpha Channel. I proceed to remove ...
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2answers
506 views

Swap Colors (not Invert them) in Gimp

I know how to Invert Colors but is it possible to swap Colors? For example from this one: To this one: So that I select one Area and then swap Colors (or even the full Layer/Picture)? By the way ...
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57 views

GIMP: Select full (transparent) image

Not that good at GIMP, but I'm having an issue. I'm trying to copy from a transparent image to another, however it only copies the part that's not transparent. How can I make it also select and copy ...
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58 views

How to edit jQWidgets png files?

I'm using GIMP to do the editing in the png file I've shown below. On selecting one of the arrows and trying to paint it red, the colour just does not turn red. It stays grey. I'm just unable to make ...
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1k views

Error opening EPS in GIMP 2.8 [closed]

I'm attempting to import an EPS file into GIMP, but it fails. I'm running v2.8.19, and I've installed Ghostscript 9.14 (I think that's the version). I've also gone through setting up the System ...
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239 views

Scaled layer in background for 8 bit art

I want to create some 8-Bit artwork using gimp. Is it possible to open a larger, higher resolution image and have it transparently in the background while drawing the 8 bit representation of say, ...
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904 views

Gimp: how to remove background noise/artifacts and enhance handwritten text

I have a lots of scanned handwritten lecture notes (PDFormat) and I want to improve their readability (I have uploaded an example). In particular I'd like to remove the "squares" on the back. I would ...
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41 views

Add more white color to Gimp layer

How can I add more white color to a Gimp layer? What about adding other colors to it?
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58 views

How do I make the Airbrush tool size, match the size of the clipboard, in GIMP?

With GIMP, it is possible to select and copy a region of the image to the clipboard, and then use this region as the brush for the Airbrush tool. However, the size of the 'painted' region, is ...
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2answers
1k views

'Add alpha to selection' for text contour border in Gimp, equivalent in Adobe Illustrator?

I made my old site logo in Gimp, it's basically white text surrounded by a black boundary that follows the contour of the text. I can describe this viscerally but there is probably a descriptive name ...
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1k views

How can I set opacity for an image in GIMP 2.6.x?

I've searched and found advice to use a GIMP layers dialogue in e.g. How do you get transparent colour on Gimp? However, in my version of GIMP (2.6.8 for Mac), Layers doesn't seem to be set up to ...
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75 views

How to duplicate noise similar to this black and white-picture [duplicate]

I want to do something similiar like this picture in Gimp (or Photoshop if required). Any ideas on how to proceed? Anything useful will be appreciated.
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1answer
2k views

How to keep the resolution of an image when scaling it in Gimp

I want to copy and paste one picture into another one using Gimp. I have a picture with 200x200 pixels and 72dpi. The 72dpi are not enough to print the image in the size specified in its header. ...
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675 views

Standard pixel density for print? [duplicate]

I have to design a flyer for half of an 81/2 x 11 page. It mostly has images but some text. And I'm designing it in GIMP. Is there an industry standard dpi for simple prints? It's not magazine ...
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2answers
174 views

Handling layers in GIMP

I'm a first time GIMP user. I have an image that contains a design that'd I like to copy on to a transparent background. therefore, I started tracing the design using the paint/pencil tool. now that ...
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3k views

Gimp: Copy layer 1 to layer 2's mask

Pretty straight forward question, say in Gimp I have an image with 2 layers in question, one is temporary, I want to use it as the mask for the other. How can I transfer a layer into the mask of ...
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1answer
543 views

How to specify a transformation in GIMP

I have a specific perspective transformation that I want to apply to an image. How can I enter the matrix values manually in GIMP instead of playing around with stretching the image until the numbers ...
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2answers
3k views

GIMP: creating a 1 pixel wide line

I'm trying to create 1 pixel wide borders for some web buttons. I've tried to use the GIMP path tool to do this but I can't figure out how to get it looking right. See attached image. 1 - copied from ...
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2answers
418 views

How to recreate this effect from Apple's GameCenter?

How could I recreate the background and the effect on the ribbons, borders, and "Other" text in this screenshot from Apple's GameCenter app? To me, the background looks a little glittery, but also a ...
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3answers
1k views

Gradient Brightness

I'm not particularly experienced in graphic design, so maybe there's an easy way to do this that I just haven't noticed, but... I have a layered PNG image in Gimp. It's a complex shape (a photo of a ...
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1answer
444 views

How does the GIMP function “perspective” work?

The function "perspective" looks like a 3*3-matrix with sine och cosines and is it translation, scaling, rotation, some combination or other? How does it work? Is "perspective" the real proper name ...
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2answers
711 views

Dotted square in gimp?

I've seen this effect on several sites, basically it's just a simple background with a bunch of dots, and I'd like to use this for a background for something but I don't know where to start!
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1k views

Can't see alpha channel in png using GIMP

I created an RGBA image as png file using Blender. When opening image with GIMP, not everything is visible. Here's the original png file created with Blender: Here how does it looks in GIMP: ...
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32 views

GIMP How to slice a shape properly?

I used the path tool to select these segments but now there is a one pixel wide alpha line between them, what's the proper way to do this?
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27 views

How to change the size of transparent background in Gimp?

The following image cuts when used as a logo here. I want to increase the size of the transparent background so it fits in properly without the underneath cut, as shown here. Using Gimp 2.8, how can I ...
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29 views

sand from under car animation

I'm creating a mini game where you are driving a car in a desert. You're looking at the car from above. I already have a model for the car, but now I'm trying to create an animation of sand coming ...
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44 views

scan/fax with text & numbers in black & white - how to improve/cleanup/enhance using Photoshop/GIMP?

I do not have a lot of experience with Photoshop or GIMP. I have a scanned or faxed document of an invoice/receipt that I am trying to submit to get reimbursed. I was mailed a copy with text that is ...