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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2
votes
1answer
142 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 ...
1
vote
3answers
883 views

How do you create a Translucent white background to text on an image with Gimp?

I am really struggling trying to create a similar look to this white translucent background with text on top of an image with GIMP. One example is Pottery Barn: http://www.potterybarnkids.com/. ...
3
votes
2answers
572 views

Restore image with negative colors

I have an image that was taken using a negative color filter long ago, but now I need the normal picture, is there a way to get a good quality of that picture with the actual colors? The current ...
1
vote
2answers
980 views

GIMP: Smooth png image from black to transparent (how to make gradient)?

How to make a transparent 'png' image from black (not transparent) to nothing (absolutely transparent) in GIMP smoothly? As result, this image on the red image gives the image from black via dark red ...
1
vote
1answer
144 views

Move canvas pixel by pixel

In Gimp, the canvas can be moved by positioning the cursor over the canvas, holding down SPACE and then moving the cursor. But, how can I move the canvas by a single pixel?
2
votes
2answers
152 views

How to select color with gimp

I am trying to select by color in Gimp this image: but when I select by the foreground color, also the antialiased pixels in the border are selected. How to select only the foreground color in ...
-2
votes
3answers
821 views

How to create solar flares using Gimp or Inkscape

How can I create a solar flares effect using GIMP or Inkscape? Something like this image: Edit: first of all thanks for all the great comments and suggestions. My initial idea was to create the ...
1
vote
1answer
783 views

anchor a floating selection to multiple layers in GIMP?

I'm making an animated GIF using layers in GIMP. I have an image of an equation that I want to put on the same place in each frame. I tried opening the equation in GIMP, and then copy and pasting it ...
0
votes
2answers
6k views

Edit a png file that cannot be edited

Is it somehow possible to edit the color of something that's in a .png file that cannot be edited? I'm trying to change colors of icons in a .png file that's used as a .css sprite. The originals are ...
2
votes
2answers
3k views

How to form semi-circular text in gimp or photoshop?

I am not trying to wrap text around a semi-circle but form a semi-circle with text. Basically the font will gradually increase from left to middle and then decrease from middle to right. Can ...
3
votes
2answers
372 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 ...
8
votes
1answer
1k 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 ...
1
vote
1answer
82 views

What's the math behind gamma in GIMP?

Inside GIMP, Colors -> Levels Click on the "Pick gray point" eyedropper (the middle eyedropper) and then click on a pixel in the image. Then go change to the Red/Green/Blue channels and you'll see ...
1
vote
2answers
192 views

What is this effect called? Is it film-grain?

What is this effect called? Is it film-grain? It kind of looks like but the grains are bigger. Thanks a lot in advance.
1
vote
1answer
1k views

How to create a high quality gif with GIMP?

I'm trying to animate a few images as simple gif. The images contain one human, a red balloon and a green background. The background seems to be dominating. The face is made of only a few colors, and ...
1
vote
1answer
3k 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 ...
1
vote
0answers
85 views

Which HSV-noise values do not cause artifacts on an LCD screen?

I have come to notice that certain HSV noise filter values applied to a uniform background colour look horrible when viewed on an LCD screen under certain viewing angles. This is more noticeable on ...
3
votes
2answers
3k 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 ...
-2
votes
1answer
95 views

Learning a new program! (A designers nightmare) [closed]

Does it have to be so difficult? I open up gimp. Wait, what does what? I open up inkscape. The controls are so different. Cntrl+D does not work. Ar.AR.ar. Photoshop, illustrator and more. Why does ...
2
votes
2answers
1k views

How to edit an animated gif in gimp to include transparency?

I have an ajax spinner which unfortunately has a white background in the corners. I want to remove the white and make it transparent using GIMP. How can I go about doing that? I tried opening it in ...
2
votes
2answers
285 views

Tool that will do a circular blur/convolution

I'm primarily a gimp user, but I want something to blur an image similarly to the way a lens would blur an out of focus background. AFAIK this is essentially a circular blur/convolution (assuming ...
1
vote
1answer
148 views

Gimp, how can I find the positions of a layer?

I need to find the x / y positions for each layer. I've googled but I can't find the answer.
0
votes
1answer
606 views

How to remove the white border “halo” from my logo?

I have the original .ai files as I paid a graphic artist to do these logos. I uploaded a .gif export of the files only to see that they have a white border: If I don't have AI/PS can I use ...
1
vote
4answers
149 views

How can I select a single color within an image?

How would one pick or select all of a single color within Photoshop, Paint.NET, or The Gimp?
7
votes
2answers
15k views

Cleaning up line art with choppy edges

So, a while back I created this icon from a game, but looking back on it behind a white background instead of an alpha-channel its edges are super choppy in some places while it's smooth in others, ...
3
votes
2answers
324 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 ...
1
vote
1answer
253 views

How to open a file the fast way in Gimp?

The classical way to open a file is not followed in Gimp. There is no browse button, nor there is a textbox where one can paste the path to the file. I do not edit images everyday and I always have to ...
0
votes
1answer
279 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, ...
21
votes
9answers
8k views

Is there any way I can add watermark to .jpg files (around 15000), en masse instead of one by one?

I have around 15000 .jpg files that need to be watermarked. Is there any way to process these images en masse to add the watermark?
4
votes
2answers
6k 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?
2
votes
1answer
179 views

Image loses transparency when added to another image

Please keep in mind that I have no idea what I’m doing with image editing. I have a watermark that I want to add to images, but it loses it’s transparency when I try to stick it on a picture. I’ve ...
2
votes
1answer
425 views

Gimp: Add text to Layer Mask?

I'd like to have a layer mask in Gimp that includes some text. I currently have a method of achieving this, but it's a little more crude than I'd like. In this image, the top text is a simple text ...
11
votes
2answers
11k views

Crop a big picture into several small size pictures

Is there a a way with GIMP editor to crop a big picture into several small equal sized pictures? So when all those small pictures connected in order would make a big picture.
0
votes
1answer
2k 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". ...
0
votes
1answer
1k 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 ...
1
vote
2answers
3k views

Use GIMP to extract out the logo from background

I would like to extract out the icon in the following screen (mixed with gray background) to Anyone know how I can do that using GIMP? Thanks.
12
votes
2answers
31k views

Gimp - Using an image as the transparency layer of another image

I have two images (For the sake of simplicity, Image1 and Image2). I want to use Image2 as a transparency for Image1. How can I do that? Assume I've done little more with Gimp than play with some ...
0
votes
1answer
45 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?
2
votes
2answers
8k views

How to make circle with bordered boundary using ellipse tool

I am trying to make a simple "Q" logo in gimp. Instead of just typing the character "Q" in big font I am trying to make it using "Ellipse tool". However, I don't know how to make the borders of the ...
2
votes
1answer
118 views

How to create uniform dashes in GIMP

I want to make a bunch of dashes that are 10 pixels long horizontally, 5 pixels long vertically, and separated by 20 pixels. Is there any way to do this easily in GIMP? I was looking at slice, but ...
1
vote
0answers
350 views

Combining screenshot with Apple product image (including its generic status bar) with GIMP instead of Photoshop?

I would like to add a proper screenshot to an iPhone product image to create an ad for an iOS 7 app. Apple provides such product images as *.psd files for Photoshop, however I only have Gimp 2.8.10 ...
7
votes
1answer
2k 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. ...
2
votes
1answer
3k views

How to get smooth transitions between colors while keeping sharp edges?

I am trying to smooth out images of colored wave forms while trying to keep sharp edges. Example of a source image: I've had some limited success using surface blur, while the transitions between ...
1
vote
3answers
417 views

How can I multiply pixel values by a constant in Gimp?

In Gimp, how can I multiply the value of every pixel in a grayscale image by a constant value? For example, multiply each pixel by 2.
19
votes
1answer
574 views

How to get standard results in colour management in Linux

I have recently calibrated and profiled my screen, with a ColorHug device. I'm using Gnome, and have the profile installed through gcm. When opening an image in GIMP and DigiKam, the results are ...
1
vote
1answer
153 views

Good “low level” graphics & image manipulating concepts tutorial for beginner

I have programming background with some experience with image manipulation via GIMP and Fireworks. As working with image manipulators is part of my work sometimes I decided to improve my knowledge in ...
0
votes
2answers
3k views

How to convert and slice jpg to psd and keep layers

MIGRATED FROM ASK UBUNTU I have several JPG designs of a website I'm developing. I did a pure HTML website and then did a full webpage screenshot for the design part. Now the client is asking for the ...
3
votes
4answers
4k 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 ...
2
votes
1answer
2k views

Simple patterns fill in Gimp

I would like to do some simple pattern or polygon fills in Gimp, e.g. to represent different regions in a map without resorting to colors or grayscale tones. Some nice examples of what I seek are ...
2
votes
1answer
82 views

Can you view the layer mask in GIMP?

In GIMP, after adding a layer mask, and editing, is there a way (or even a plugin) to let you view the layer mask right on the canvas? I know that you can see a miniature copy of the layer mask in ...