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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3
votes
2answers
566 views

Outlining photo content (like a colouring book)

I am trying to make a full color photo into just a black outline to be printed and colored in by hand, basically just making coloring pages off of full color photos. I just installed gimp, but cannot ...
3
votes
2answers
16k views

Moving a part of an image with GIMP?

This is the original image and I want to move the text to the right of the image: But I failed, I tried to resize the canvas but then when I move the text the layer gets invisible when put on the ...
3
votes
4answers
7k views

Removing shadows in a white background photo

How do I remove the shadow in this photo? I tried fuzzy select on my actual image, the object has grey elements that make it difficult to distinguish properly. I can do by parts, but the real ...
3
votes
2answers
8k views

Does Gimp support custom shapes?

Why doesn't The Gimp have drawing tools? Weird isn't it? Something I'm trying to do today, and not for the first time, is take in a picture and just annotate it with a couple of arrows pointing to ...
3
votes
2answers
203 views

What sort of structure does the slice tool generate when exported as HTML?

When I used the slice tool on each part and export as HTML, does it generate a skeletal HTML code where it consists of frame layouts? I would like to know for both Photoshop CS4 and GIMP.
3
votes
2answers
330 views

Exporting square tiles from a stripe - in Inkscape or Gimp

I am using Inkscape and Gimp to create assets for a word game and am looking for an advice from more experienced users of these great tools. In Inkscape I have created a stripe with 26 letters and ...
3
votes
2answers
298 views

How can I apply realistic brush marks on an image?

I wonder how brush marks are applied to images. For example, there are some good marks on the sun graphic below. Are they textural, or do they require some special painting tricks? Any keyword that ...
3
votes
1answer
136 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 ...
3
votes
2answers
633 views

An opensource equivalent to Photoshop that has Lasso and Warp tools?

Using Photoshop, I can edit the image by using the lasso tool and warp tool, but Photoshop is not open source, I need an open source software to edit the image by using the same tools. I tried GIMP ...
3
votes
1answer
8k views

How to record action for automatic repeat in GIMP?

I have repetitive actions I need to perform on images that are all consistent. For example I have 100 images with size 100 X 100 What I need to do on each one: 1. scale to 75 x 75 2. export as png ...
3
votes
4answers
1k views

GIMP Rounded Rectangle Radius > 100px?

I am wondering if there is a way to make GIMP (2.8 on Mac) allow me to make a rectangle with rounded corners - the radius being over 100 px. This seems to be the current limit. This would greatly ...
3
votes
2answers
226 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
2answers
183 views

What is the correct name of this filter?

Normally, this is what would you would see if you magnified older newspaper images printed in color. (check the background of the attached image) What is this filter called? How can I recreate this ...
3
votes
2answers
816 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 ...
3
votes
3answers
2k 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
votes
2answers
526 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 ...
3
votes
1answer
5k views

How to create a realistic shadow between wall and floor in Photoshop or GIMP?

I'm inexperienced with Photoshop/GIMP and was hoping someone could tell me how to create a realistic (or as realistic as possible) shadow between a wall and a floor as a background image for a web ...
3
votes
1answer
515 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
4k 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
votes
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
votes
2answers
17k 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
votes
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
671 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 ...
3
votes
1answer
53 views

In GIMP, how to completely disable anti-aliasing/interpolation while scaling a selection?

I'm trying to design something in GIMP that must have no anti-aliasing/interpolation at all. When I scale up, I want sharp edges with no blur. I can disable anti-aliasing/interpolation while scaling ...
3
votes
2answers
233 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
votes
1answer
452 views

gimp - animation formats besides gif

Using Gimp 2.8.4 I am developing an animation for a game in gimp. The game does not require a gif animation - I load individual images as frames, usually pngs, and animate them in the game engine. ...
3
votes
1answer
830 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
votes
3answers
776 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?
3
votes
2answers
1k 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 ...
3
votes
2answers
3k 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
1answer
5k views

copying selection shape in gimp

I'd like to copy selection shape in gimp and then paste it somewhere else (I've got first half of the image and I'd like do make it's mirror reflection). Do you know how can I do it?
3
votes
1answer
34 views

UI reasoning in Graphics Design: Why does escape not cancel selection in Gimp?

I am completely new to Graphic Design and I am using Gimp. As you can imagine, the first few steps are a hate-love relationship kinda thing. I found that the selection tool is at the core of the ...
3
votes
2answers
500 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 ...
3
votes
1answer
1k views

How to quickly set GIMP selection aspect ratio to that of the image?

If I don't know the aspect ratio of an image, what is the most efficient method to set the selection aspect ratio to that of the image? The fastest I've found (not fast at all) is to look at the ...
3
votes
1answer
604 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 ...
3
votes
3answers
950 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
591 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
votes
1answer
4k 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
votes
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
votes
1answer
55 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 ...
3
votes
2answers
104 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). ...
3
votes
1answer
198 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 ...
3
votes
2answers
1k views

GIMP: “Joined” arabic text

I'm trying to create an image which contains Arab text. This is the (HTML entities for the) text: العربية Raw, it is العربية When I paste the text into ...
3
votes
1answer
51 views

put partly transpared photo on top of panorama

What is it nessesary to do if I want to see just black edges from background image in image placed on top? Here are links to source images This is what I want to create: You can see there are ...
3
votes
3answers
710 views

How can I combine two colored textures so that the final image is blended to match a specific lighting setup

I have been working on using Blender Cycles to bake textures but it renders very slowly so I have to render at low resolutions. This is fine for the indirect diffuse lighting but really makes a mess ...
2
votes
4answers
21k 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
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 ...
2
votes
4answers
1k 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
286 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
2answers
1k views

Erase a single pixel in GIMP

I am trying to illustrate in GIMP 2.8 with pixel-perfect precision. The pencil tool allows me to fill in a single pixel without any fuzzy edges or anti-aliasing. However, the eraser tool operates more ...