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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12
votes
1answer
5k 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 don'...
12
votes
2answers
29k 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?
12
votes
2answers
22k views

How to apply anti-aliasing to a layer with a transparent background?

I have one layer with some black pixels in the middle and a transparent background. If I add an opaque white background under it, merge both, and then click "Antialias" from the "Filters" menu, it ...
11
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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:
11
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1answer
35k 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 ...
11
votes
3answers
11k 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 ...
11
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1answer
6k views

In GIMP, how do I use an image as a color reference to colorize a black-and-white photo?

Let's say I have created a layer on a black-and-white image with a layer mask to colorize some parts (for example skin). I am able to change this with Colorize and change to any color. But how do I ...
11
votes
5answers
23k 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
votes
2answers
68k 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.
10
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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 ...
10
votes
6answers
20k 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 ...
10
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6answers
19k 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
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5answers
5k 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 ...
10
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2answers
43k 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 ...
10
votes
3answers
10k 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
votes
2answers
28k 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 ...
9
votes
4answers
47k 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 ...
9
votes
5answers
8k 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 ...
9
votes
4answers
49k 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 ...
9
votes
6answers
8k 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 ...
9
votes
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
41k 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
votes
5answers
18k 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 ...
8
votes
2answers
8k 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 ...
8
votes
1answer
11k 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
16k 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
5k views

How can I quickly delete multiple layers in GIMP?

I have an animated .gif open in GIMP with 48 different layers. In Photoshop I can quickly select and delete layers multiple layers at once, but it seems that this isn't possible in GIMP. My current ...
8
votes
1answer
12k views

How to change all pixels in Gimp that are not one of two colors to white?

I was trying to submit an app to the Windows Phone app store. Here all pixels need to be white (#FFFFFF) or transparant (#FF####). I had a black logo on a white background. To make the background ...
8
votes
3answers
17k 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 ...
8
votes
3answers
33k 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 ...
8
votes
2answers
48k 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
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
votes
1answer
4k 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
votes
3answers
4k 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
votes
0answers
441 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
22k 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
votes
2answers
24k 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?
7
votes
8answers
16k 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 ...
7
votes
2answers
22k views

How do I change the color of a png image in GIMP?

I have a png image that I'm using with GIMP that is only one color. I would like to change this color to a different color. Is there an easy way of doing this?
7
votes
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
1answer
14k 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
33k 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 ...
7
votes
3answers
35k 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 ...
7
votes
3answers
5k views

Gimp - Level adjustment as layer, like photoshop?

Is there any way to adapt the levels of an image through a specific 'level' layer, like in photoshop ? I find it very handy to have it as a layer. See below, I'havent found a way to achieve that... ...
7
votes
1answer
41k views

how to curve text in an arc using gimp

I have a small tea company and I'm trying to redesign our logo. What I would like is for the text to bend in a arc, as if on a coin. I would like to render the text as if it's "backbone" were ...
7
votes
2answers
12k views

Modify Yellow Dotted Line in GIMP

How do I remove or resize the marching ants from around the apple? It appeared when I used the move tool to move the position of the apple. It is in its own layer. I need to modify the image/layer ...

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