Questions tagged [gimp]

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 on Graphic Design.

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11
votes
2answers
25k views

How do I draw horizontal/vertical straight line in GIMP?

you can consider me new to GIMP. I've tried by holding Shift key, can draw straight line but I want a straight horizontal/vertical line. So, How can I draw straight vertical/horizontal line?
10
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6answers
6k views

Photoshop curved Shadow

How to create the shadow effect as per the url/image below? Specifically, the rounded/curved shadow at the bottom:
10
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2answers
10k views

how to display current colour values of pixel under cursor in gimp?

Is there a way to display the colour values of a pixel currently under the cursor? I've seen that in different other software. Why do I need that? I have to clone textured areas in a picture. But ...
10
votes
3answers
9k 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 ...
10
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3answers
12k views

How to edit existing rectangle selection in GIMP?

I have a rectangle selection. As long as I stay on the rectangle selection tool I can click in the rectangle to change the size. If I switch to another tool (e.g. move tool) and then come back to ...
10
votes
6answers
15k views

How do I brighten a part of a picture with Gimp?

Say I wanted to bring out the colors in the shadowy bottom right hand part of the attached image, how would I go about it? I assume I need to restrict the processing to that part but I have no idea ...
10
votes
5answers
20k views

Fill Canvas with background in GIMP

I have a bunch of images whose size is 750x1000 pixels. I wanted to make them 1000x1000 without risking stretching the depicted object so I have enlarged the canvas and centered the original image. ...
10
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3answers
9k views

How do I deal with color spill in chroma key using GIMP?

I'm experimenting with "green screen" techniques to remove the background around a test subject. The test shots were taken in front of a bright green background in moderate to bright lighting ...
9
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2answers
1k views

Adding transparency to ink drawing

I would like to add transparency to the following image I simply want anything not inked to become transparent. I have gimp and I can also use some online tools, if available. I tried using gimp and ...
9
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3answers
2k views

How to stretch the middle section of an image to a new width in Gimp

First off, I don't use Gimp that often, so what I'm asking may be simple and I've missed something obvious. But... I'm trying to modify the following image in Gimp. The image size is 489x63 however I ...
9
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5answers
4k 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 ...
9
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5answers
3k views

Convert image into mask

I have a green background picture with some shadows. I would like to use it as a mask so I can place it on background with any color (e.g. red or pink) and get the same style of shadows. I tried ...
9
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1answer
37k views

Using GIMP, can you “erase” a color?

I'm presently working on an iOS application and I am attempting to reverse engineer their standard alert dialog window. I have managed to figure out what the alpha value on the background it uses is ...
9
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1answer
2k views

In GIMP, how do I get the smudge/blur tools to work properly?

I use the smudge tool very often in GIMP while painting. Unfortunately, the algorithm tends to generate a much darker version of what the smudged color ought to look like. For instance, a normal ...
8
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8answers
15k views

How can I make a screenshot look like a photograph taken of a real surface? [duplicate]

Possible Duplicate: How to get this blur texture effect in photoshop? I'm starting from a plain old screenshot, and I'd like it rotated in 3d, with more distant parts more blurry. Is there a ...
8
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2answers
21k views

Can't use any colors other than black in GIMP image

I opened a .png file I had in GIMP and started editing it. The image was only black and some transparency. I selected the paint bucket tool, chose white as my color but when I fill in anything it is ...
8
votes
1answer
25k views

Editing gifs in gimp

How do I open a .gif in gimp, edit the frames, and save it without the final product being a still image? I alredy know how to make a .gif but I want to be able to take a pre-existing .gif and just ...
8
votes
5answers
7k views

Select inside/outside of a border

This seems like a basic feature, but I'm missing it somehow. I have the the outline of a state with a discrete colorful border. I'd like to select the border AND the inner contents so I can produce ...
8
votes
1answer
9k views

How can I replicate Photoshop's content-aware fill in Gimp for Windows?

I want to remove an object from a photograph based on the surrounding patterns. In photoshop I could use the Content Aware Fill Tool, but there doesn't seem to be any built-in alternatives for Gimp on ...
8
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2answers
13k views

how to trim an image in Gimp [closed]

I wanna trim all white spaces surrounding an image's content using Gimp. Is there some straightforward method, or any trick?
8
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2answers
35k 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 ...
8
votes
6answers
19k views

Gimp: Pick color on screen without taking screenshot

Sometimes I want to quickly use a color that I see on a picture, website or program. I usually take a screenshot then open it in Gimp and use the "Color Picker" tool. Is there another way to do this ...
8
votes
6answers
7k views

Moving Multiple Layers in GIMP

I'm not talking about applying a transformation or anything; I want to select multiple layers and physically change their order in the layer list (or whatever it's called). There doesn't seem to be a ...
8
votes
2answers
2k 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 ...
8
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2answers
44k 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?
8
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1answer
6k views

Gimp: How to export images at a specific dimensional size

Does Gimp provide a way to export an image at a desirable dimensional size, and still preserve the original size while working in the UI? I need a scaled down version of a file I am currently working ...
8
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1answer
3k 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 ...
8
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3answers
3k views

Why can I create layers, but not layer groups in the indexed color mode in gimp?

I'm making some pixel art in gimp and I so I figured I should use the indexed color mode since I won't be using very many colors. About halfway through my project I realized that I wanted to be able ...
8
votes
1answer
10k views

How to create grid in GIMP (not sure if the filter is good)

I'm a beginner to GIMP, and I'd like to create a grid. I searched Google and all it gave me was to use the Filter > Render > Grid plugin, but for my job all I want to do is something like this: Let'...
8
votes
1answer
3k views

How do I fix this photo (poor quality, saturation, color) in GIMP?

I have a photo with poor quality and lighting that needs to go in a print newsletter. There is some lighting issues, and a blue-ish color in part of the image. I'd like to fix the image using GIMP. ...
8
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0answers
405 views

Is there a way to select multiple sprites from a sprite sheet in GIMP? [duplicate]

After you've made the background transparent, color selected the background and inverted the selection to outline all the character sprites: Is there a shortcut or some quicker method/program/tool to ...
7
votes
3answers
21k views

How to add a color gradient to a picture

I felt in love with the way this graphic designer, called Mariusz, has edited this picture. It would be fun to produce something like this for myself. Anyone has some ideas on how to create such a ...
7
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1answer
16k views

brightness-contrast does not operate on indexed layers

I want to darken a PNG image in GIMP. I open it and choose Colors | Brightness-Contrast. The application responds with the error message - "brightness-contrast does not operate on indexed layers". ...
7
votes
2answers
7k views

After making a selection float in GIMP, how to move it in a straight vertical or horizontal direction?

I am doing kerning manually in GIMP, i.e. trying to move letters closer to each other, but my hand movements are not exact enough on my mouse so whenever I move a layer to the left or right, it also ...
7
votes
1answer
13k views

How to make retro 80's chrome text in GIMP? [closed]

I want to make images with the cool retro chrome text, like the image below. How do I go about doing this in GIMP 2.8?
7
votes
2answers
49k views

Gimp: how to combine two images side-by-side

I've recently drawn 2 images and for the final product I need to combine half of each images, one on the left and one on the right, into a single image.
7
votes
3answers
30k views

How do you create a translucent white background for text?

I am really struggling to create a white translucent background for text on top of an image with GIMP. Pottery Barn Kids (http://www.potterybarnkids.com/) has one example of what I am trying to ...
7
votes
3answers
16k 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 ...
7
votes
4answers
42k views

PNGs 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 ...
7
votes
7answers
21k 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 Separate/...
7
votes
1answer
2k views

How to create a saturation map?

Is there an easy way to create a "saturation-map" in Photoshop/Gimp? I need a grey-scale version of an image showing where the colors have less saturation (black) and where they have more saturation (...
6
votes
4answers
37k views

How to add a simple border into an image in GIMP

I'm very new to GIMP and found that doing simple stuff in GIMP is much harder than it should be. All I want to do is add a simple black border around an image layer. I have added this image using the ...
6
votes
5answers
6k 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 ...
6
votes
2answers
18k views

How to convert color images to black & white in GIMP?

I've a color image and want to print on my black and white printer. So, How do I convert it to black & white using GIMP?
6
votes
3answers
16k views

Censoring image in GIMP

I need to censor some images (Whole image). I need these images for a essay about pornography in a webpage and I need the images (pornographic pictures) be censored (something like a pixelized image ...
6
votes
2answers
28k views

GIMP: Remove text from background [duplicate]

Im completely new to image editing, so excuse my immaturity... I have the following image: I want to remove the writing on the blackboard and replace it with something different, keeping the ...
6
votes
4answers
16k 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 I ...
6
votes
3answers
31k 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 ...
6
votes
2answers
50k 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 ...
6
votes
2answers
8k 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 ...

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