GIMP is the GNU Image Manipulation Program. It is a freely distributed piece of software for such tasks as photo retouching, image composition and image authoring. It works on many operating systems, in many languages. Scripting questions on Stack Overflow, installing questions on Super User, how to ...

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12
votes
8answers
2k views

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

I have around 15000 .jpg files that need to be watermarked. Is there any way to process these images in mass to add the watermark?
4
votes
2answers
950 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
94 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
18 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 ...
0
votes
0answers
12 views

Gimp select tool selects old selection [on hold]

Sometimes I need to copy parts of a mockup into separate image files. Then I select the needed part with the select tool. And I copy and paste it into a separate image: Ctrl+C, Ctrl+Shift+V. I repeat ...
6
votes
2answers
406 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.
3
votes
2answers
36 views

How to create a one pixel pencil brush in Gimp?

I have googled this and found a number of answers and videos which all say that this can be done by setting the brush size slider in the brushes panel or brush editor panel. I'm either clicking on ...
1
vote
2answers
51 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.
0
votes
1answer
19 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
57 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
1k 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.
3
votes
2answers
61 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 ...
4
votes
2answers
12k 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
26 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?
0
votes
1answer
23 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 ...
3
votes
2answers
127 views

Executing multiple commands in sequence in GIMP

I've been working with GIMP for some time now and at the moment I'm creating some wood graphics for a game. For creating the wood, I first fill the image in brown, then apply some filters and finally ...
0
votes
1answer
17 views

How do I make the Airbrush tool size, match the size of the clipboard, in GIMP?

With GIMP, it is possible to select and copy a region of the image to the clipboard, and then use this region as the brush for the Airbrush tool. However, the size of the 'painted' region, is ...
2
votes
2answers
136 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
2answers
48 views

Why can't the GIMP align tool select some layers?

When I try to align various layers in GIMP 2.8, sometimes the align tool selects the entire image, not the layer I clicked on. It doesn't matter how many times I try, and closing/reopening doesn't ...
2
votes
1answer
44 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 ...
7
votes
1answer
313 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
2answers
83 views

GIMP/Inkscape Text Art from Image: Is there an easy way?

Hello All, is there an easy way to grab an image (or a shape I cut out with GIMP Free Select tool) and then just write text over it and let it fill the shape? I have tried searching for it but no ...
0
votes
0answers
59 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
186 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
62 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(Sony OSL) to bake textures for a game environment but the open source code that Sony provided is not optimized at all and because of this Cycles currently ...
2
votes
1answer
197 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
2answers
328 views

Why can't I fill a selection with color using GIMP?

I am quite new to GIMP. I created some text and set it along a path. I created a selection with the same shape as my text. If I try to fill this selection with a color (Cmd. or Cmd,) GIMP appears to ...
0
votes
3answers
107 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.
17
votes
1answer
408 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 ...
0
votes
2answers
54 views

How to put a new picture in an iPhone image frame

I want to change the screen part of this Iphone image with the screen capture of my own app. I'm trying to do this in Gimp (unless there is a better way?). However, I can't seem to just copy paste my ...
1
vote
1answer
64 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
81 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 ...
1
vote
1answer
2k 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 ...
27
votes
2answers
109k views

Making the background of an image transparent

I have some jpg images and I need for each of them to have a transparent background. I have GIMP as a graphic tool. I need to put them in a web page and I need to see just the main element and have a ...
3
votes
4answers
121 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 ...
1
vote
1answer
103 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
25 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 ...
1
vote
1answer
2k 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 ...
2
votes
2answers
631 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 ...
1
vote
1answer
40k views

Changing the background of the picture to white

I have a passport picture in which the background is light brown. I need to change that background to white. Is there anyway I can do that using Inkscape or any free tools? Here is the picture: ...
2
votes
1answer
61 views

GIMP “color to alpha” is not selectable

Do I have to do something "special" to get the Color -> Color to alpha menu option to work in GIMP? I am trying to convert a background color on a GIF image to transparent by converting the background ...
1
vote
2answers
4k 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 ...
1
vote
1answer
93 views

Creating a tile for a word game

Please advise me how to use Gimp to create a tile for a word game like below: I can see 2 rectangles with rounded corners - the outer one and then the one on the top. Is the smaller rectangle ...
0
votes
3answers
2k views

Annoying GIMP issue (fill bucket with a circle-slash icon on the cursor)

I am trying to bucket fill a layer, but I get this crazy cursor I cant get rid of. I think its because I have something selected. I tired Select All, Select None, but the cursor does not change. I ...
7
votes
3answers
3k views

How to convert old scanned documents into black and white

I have some old documents that have been scanned, and I want to convert them to black and white. Content should be always black, and background white: I use Photoshop.
2
votes
1answer
58 views

Get difference between two images as transparent image in GIMP

I have two images A and B which are similar in many regions. I want to create an image C so that B = C on top of A where C should be as transparent as possible. on top of is the normal layer ...
1
vote
4answers
325 views

Resizing/shrinking .JPG files without losing quality?

Im using Gimp to resize images. When using a high res image normally 4500 x 2994 i usually need to shrink this image to 325 x 130 pixels. As you can imagine i loose the shiny, glossy and high res ...
2
votes
1answer
56 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 ...
6
votes
1answer
169 views

Highlight stray non-background pixels

I am editing an image in GIMP that has a few nearly-transparent (resp. very light) pixels scattered through an otherwise transparent (resp. pure white) background. Is there a command that will ...
2
votes
1answer
44 views

How do you change the default font of GIMP in Windows?

How do you change the default font used in GIMP 2.8 on Windows 7? The default font seems to be Sans Bold (which is used in a lot of applications that originated from Linux). I am not referring to the ...