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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Command line interface-based way to desaturate and posterize an image?

This is by far my most common task, and I'd say I've wasted about 1000 mouse clicks on it in my raster-based program. Because it's so common for me to start off desaturating an image and then ...
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1answer
31k views

How to resize canvas and background layer in GIMP?

I want to reduce the canvas size (and the background layer) from 500×500px to 16×16px. How to resize the canvas in GIMP?
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2answers
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Darkened border in GIMP

How can I add a dark border around the edge of an image in the gimp? I am trying to create a parchment paper as a background for game pages. I would like to add a darkened border that simulates burnt ...
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4answers
14k 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 ...
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1answer
9k 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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2answers
698 views

Unable to create image of a certain size (25mm x 11mm, 300DPI)

I've been asked to create an image of 25mm x 11mm, with 300 DPI. I'm far from an expert so I've simply tried to create a new image in GIMP with these specifications. The program doesn't allow me to ...
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2answers
3k views

How to smooth a scanned image using Gimp

I have drawn an image which I then scanned into the computer and saved as a png. I just want to make the lines smooth on the image. The image is a logo Any help is much appreciated. I am using ...
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2answers
1k 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 ...
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6answers
13k views

Can I change the transparency of a selection keeping the relative transparency each part already has proportional?

I want to give the middle full opacity but let the border effect that is already existing.
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2answers
301 views

When saving an image as a PNG or JPEG, does photoshop/GIMP only save the top layers or all the data?

I need to send a file to someone but it has sensitive information on it that I would not like to share. I was going to just scan the document and edit out the sensitive information with a layer ...
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4answers
26k views

GIMP How to make existing gif background transparent

I have the following gif, how to make the grey background transparent if not white?
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3answers
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Why is GIMP's rendering fonts differently than other applications?

I noticed that if I compare the same font-family and font-size from other applications to GIMP, the output is different. In the image below, on the left is 8pt Microsoft Sans Serif rendered in Word ...
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2answers
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How to make PNG-quality animations in GIF format?

I've noticed more and more sites using animated GIFs that have PNG quality. You'd think they're the latter if you didn't check the image info. The lines are crisp, the colors look great, there's none ...
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5answers
3k views

Convert foreground motif to degrees of transparency?

I have a 24-bit PNG where the motif is a subtle pattern. The pattern itself is in light greys, i.e. the background color of the PNG is #eee and the pattern is in a range of slightly darker greys. I ...
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2answers
177 views

How can I make this GIF's BG transparent in GIMP? I feel like I've tried it all

Sorry in advance for the anime gif... So I want to make the below GIF's background transparent, but I feel like I've tried it all, but to no avail. I am fairly new to GIMP, so after trying ...
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1answer
3k 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 ...
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1answer
12k views

Edit rotated text in gimp

Trying to edit a text layer which was rotated pops up the following message: The layer you selected is a text layer but it has been modified using other tools. Editing the layer with the text ...
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1answer
7k views

Removing all partial transparency in GIMP

I have an image that has transparent edges around a main drawing, the edges are a semi-transparent black. Is there any way to remove all partial transparency from the image instead of removing all ...
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2answers
8k 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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3answers
1k 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 "hue/...
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2answers
1k 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 ...
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1answer
484 views

Make a random dispersion of images

I got a lot of unique images, so my goal is distribute all that images randomly and apply randomly scale and rotation transformations. Like these So which is the best way to achieve these ? I use ...
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4answers
2k views

Gimp grid strange behavior - feature or bug?

When I create a grid in Gimp (a 32x32px grid with 0x0px offset), the distance between the top edge of the image, and the first grid line, is 31 pixels, almost like the grid starts one pixel above the ...
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1answer
833 views

How to reduce enormous GIMP (XCF) file size for simple photo correction

Thank you in advance for your help. I am a fairly new GIMP user with no Photoshop experience, so bear with me. A batch of 600 images was ruined by something inside the camera that caused a smudge to ...
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2answers
838 views

Is it possible to use only Open Source Software for industry level graphic design?

I know there are some questions similar to this, like this from 2012 and this from 2011, but I think maybe something has changed in this 4 years, since software develop so quick now. Is it possible ...
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1answer
11k views

How to bucket fill area with a gradient in Gimp?

I have a very simple problem. In the following image I want the pinnacles and other parts of my (admittedly very awesome) castle filled with some color and other shapes or outlines filled with other ...
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1answer
8k 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 ...
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2answers
3k views

Disable floating layer mechanism in GIMP

GIMP applies a floating layer whenever I paste content into a document. Unlike Photoshop, this requires me to create a new layer each time which is an annoyingly contrived and confusing process. How ...
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1answer
2k 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 ...
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1answer
3k views

How to have multiple views in single window mode using GIMP?

I'd like a real-time preview while editing icons in GIMP. I know that you can press View > New View to get a real-time preview window, however in single window mode gimp puts the preview in a ...
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3answers
7k 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.
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2answers
6k views

Why doesn't GIMP rotate correctly?

It seems like Gimp is not rotating correctly. I have two duplicate layers of this GIF: It looks like this: I click the rotate tools, click one of the layers, and choose 90 degrees. It looks like ...
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1answer
8k views

How to create Android PNG Icons from an SVG using GIMP

I'm pretty much a graphics design noob, as you can tell by this very basic question. What I am trying to achieve is to create a set of Android icons from an SVG file that I have. In case you didn't ...
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2answers
15k views

How do I make a 2D texture into a banner/flag that looks like it is folding from a breeze?

I've got a 2D image and I want to transform it into something that looks like a single frame from an animation of that logo on fabric catching just a bit of breeze. I'm not an artist so don't have ...
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2answers
1k views

How to show boundary of every layer in Gimp?

Using Gimp, I am working on a sprite image made of lots of icons, each on a separate layer. I would like to check that there is no overlap by displaying the outline of all layers. There is an option "...
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1answer
2k views

Tutorial on how to create a flowing thread

I'm looking for a tutorial to create wavy flowing threads. Like this: I'm open to tutorials in Photoshop, GIMP, or any freeware image manipulation program. We have a copy of PS. I'm not sure if ...
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3answers
4k views

With GIMP, how to crop a layer to the size of a different layer?

I have multiple layers in my project. I need to crop one (call it layer A) to the size of another (layer B). Neither has the full size of the image. I thought I would switch to B, Select All, switch ...
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1answer
13k views

How do I extend an image by adding blur to sides?

I need to make an image 1080 x 1920. But when I do, the image looks very distorted. Is there a way I can extend an image by adding this blur to the sides of it? Also, does anyone know what this is ...
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1answer
1k 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. ...
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1answer
2k views

How to create the round/rectangle dialog on GIMP or Photoshop?

How do you design that bubble?: I tried to use a rectangle and a rounded shape but didn't work out nicely. Would be really nice if someone can point out (or if this kind of shape already exist!).
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2answers
11k 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?
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1answer
950 views

Make “Snap to Canvas Edges” the default?

Using GIMP 2.8.22 on Windows. More often than not, I like to have View -> Snap to Canvas Edges checked. How can I make this the default? The only thing I could find is a forum post from 2007 ...
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1answer
11k views

Chroma keying a background to a green screen animated GIF

There are some GIMP tutorials about adding a background for a green screen GIF, i.e. chroma keying. But none of them is about a green screen animated GIF (e.g. the "Confused Travolta" meme). GIMP can ...
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1answer
396 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 ...
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1answer
2k 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 ...
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2answers
447 views

How to shade region under a mathematical curve?

I want to show the effect of threshold on FAR and FRR( basically the region under a curve with when the x-range is bounded ). To do that I need to do something like this!! image If the threshold is ...
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3answers
201 views

GIMP: do not move layer to top when transforming

Using GIMP 2.99, I'm trying to fit photographs into a photo frame with cutouts. I created the cutouts in a top layer, and am trying to visually scale the photos on the below layers so I can make a (...
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3answers
22k views

How do I view a JPEG's EXIF data in Gimp?

I would like to view a JPEG's EXIF data in Gimp, perhaps modifying it. How do I do this?
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1answer
1k views

GIMP opens JPG file with different colors

I have a JPG file (produced in Illustrator, from the EXIF tag) which, when opened with GIMP, displays the colors differently from any other program I have (e.g. Firefox, eog, gThumb, etc.). Here's ...
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2answers
164 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). ...