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
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1answer
137 views

Forcing transparency on layers below

I am pretty new at Gimp, so not sure if this is possible at all. Let's say I have two lines like this, and I give the impression one line is on top of the other by clipping at the intersection, like ...
2
votes
1answer
757 views

Gimp: Change coordinate system (where 0,0 is)

I use gimp for manipulating images for my software projects. I am used to working in a coordinate system where 0,0 is at the bottom left of the screen. Gimp uses 0,0 as the top left; Is there a ...
2
votes
1answer
588 views

Changing text with drop shadow over a radial gradient in GIMP

I want to change the text in the image below without modifying the background. I tried cutting the text and filling the gap with a new one, but it doesn't look nice. Is there a simpler way?
2
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1answer
6k views

Affect mutliple layers in gimp

Is it possible to apply things like brightness/contrast or hue saturation, or even filters to more than one layer at a time in gimp.
2
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3answers
36 views

In Gimp, how to resize a Selection after it's been used?

The question is probably not clear on one line! Here some details: made a circular selection (Ellipse Select Tool) to get a perfect circle just after, using the mouse, resized that selection by ...
2
votes
1answer
27 views

Batch combining images in latex or inDesign? [closed]

I'm making my print and play card game. Everything is ready: card frame which is common for all cards (svg), custom image for each one (svg or png) and text to be placed below image in the text field. ...
2
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1answer
83 views

Remove only background objects from a png image using GIMP

I have an image with me. I want to remove only the window curtains from the above image using only GIMP. I tried to remove the curtains, but along with curtains the are glasses also removed. How ...
2
votes
1answer
145 views

Speed up making zoom areas on screenshots in GIMP

I am creating in Gimp effect that is shown on below picture: The way that I am doing it is: Make circle selection Copy paste what is below on new layer Grow selection Add layer and fill it with ...
2
votes
1answer
639 views

How to draw MS Paint like (aliased), 1px circle in GIMP

I was trying to draw some pixel are amd first thing is to try a circle via stroke path with miter set to 0, anti-alias off, 1 px line. Here is what I get in Gimp. Part of the circle are ok, others are ...
2
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3answers
183 views

Gimp: quick way to cycle through pencil/brush presets?

I have created 6 different pencil pre-sets with different diameters. What I want is to be able to cycle up and down from one pre-set to the next, preferably with a keyboard shortcut. How do I set this ...
2
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1answer
7k views

How to fade two images together in Gimp

I have two pictures of irregular shape with transparent background and a background image. How can I join these two pictures to make them fade with each other, but not with the background image?
2
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2answers
1k views

Remove transparency in bulk - GIMP

I have 3,337 PNG images which all have a transparent background. First of all, I don't know how to remove transparency... Second of all, I want to do this with all 3,337 images at the same time. I ...
1
vote
4answers
281 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? The objective is to edit everything with that color afterwards, such as by brushing over it with another ...
1
vote
3answers
182 views

Set transparency of wood print [duplicate]

I am trying to make initials found in old books transparent. E.g. The paper should be completely transparent and the dark parts of the print fully opaque. But the parts of the print that are not ...
1
vote
1answer
650 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 ...
1
vote
3answers
673 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.
1
vote
1answer
104 views

Gimp make top half of photo lighter, and bottom half darker

I have a need to show things more dark or "dreary" at the bottom part/half of the stairway, and more light at the top. At the top I don't care about the stair colors so much, I want the sun to be ...
1
vote
1answer
84 views

How to bisect a selection with GIMP?

How can I cut a rectangular selection exactly in half, so that a 128-pixel long selection becomes 64 pixels long? I have this: I want to select just the top half of this box (so I can bucket fill ...
1
vote
2answers
2k 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
2answers
676 views

How to draw a solid line, that fades out to one side in GIMP?

How would you draw something like that blue border above, where there's a solid line that fades out to total transparency on one side, in GIMP?
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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.
1
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1answer
49 views

Automatically scaled opacity for multi-layered images

I have several set of images with a fixed background and an object moving in the foreground. I'd like to get an idea of the motion of the object by superimposing images with scaled opacity. If I load ...
1
vote
1answer
5k 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". ...
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2answers
2k views

Open source software to reduce colours to custom optimised palette (quantize) (for paint-by-numbers)

I want to manipulate a photo so that the number of colours is reduced significantly (to say 15-50 colours which I would specify the number). I would like those colours to be automatically optimised ...
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2answers
3k views

Using GIMP to redraw an existing low res logo

I am just getting my teeth into Gimp and am not a graphic designer by any stretch of the imagination! I'm a developer trying to make myself a bit more useful on the design front. Anyway, I am ...
1
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2answers
2k views

How can I create a color-separated PDF in GIMP?

Using GIMP I would like to create a color-separated PDF. I plan on making printing plates for a home letterpress and they request a color-separated PDF, which seems to just be a page for each color ...
1
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3answers
78 views

The simplest replacement of color in PNG icons

I need to replace the color of some PNG icons. Examples: shall become . shall become: . Only color replacement: orange → violet, orange → green, and no other actions. I never worked before with ...
1
vote
2answers
45 views

GIMP: Setting entire foreground to a particular colour

In GIMP version 2.8, I have an image with a black foreground, and a transparent background. I want to set the entire foreground to red, instead of black. What's the simplest way of doing this? I have ...
1
vote
2answers
213 views

Scale down an image in GIMP without losing resolution

How do I scale down an image to a smaller size in GIMP without an unnecessary loss of resolution? I know that I am losing too much image resolution because when I downscale the same image using HTML ...
1
vote
2answers
290 views

How to make a “barrel” shape from a flat image (?) [closed]

If you have a flat image ie logo you want glue onto a cylindrical "package" to show final product -- what free s/w package (or script) do you use? (I use inkscape and gimp to create flat art with no ...
1
vote
1answer
187 views

How can I recreate this effect in GIMP? Blue/white color conversion

Here is the image: The best way I can describe it is converting the image to a black/white scale (heavy white) and making all instances of black==blue.That was how I approached it when trying to ...
1
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2answers
81 views

How can I make the alpha in a layer proportional to the darkness?

I have a layer that I want to merge and I want the dark colors in the layer to have more weight. How can I make it so that black pixels are 100% opacity, white pixels are 0%, and #7F7F7F pixels are 50%...
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3answers
616 views

Convert .psd into .png without loosing shading and lightening

So I do not own Photoshop, but got a .psd file from my client to work with. I managed to use a online converter and get this .png out of it. What I additionally need though is the conversion of ...
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1answer
194 views

How to export overlay glow

i made the following image: lowest layer: solid black middle layer: some white brush painting highest layer: solid red with Overlay mode this gives me a nice glowing effect, which i would like to ...
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2answers
402 views

How can I do a global fuzzy select in GIMP?

How can I make the fuzzy select global in GIMP, so that it selects all of a certain color and not just contiguous regions? For example, if I drew multiple red squiggles, how could I easily select ...
1
vote
3answers
2k views

Change Color Of A Monotone Icon To Another Color

Basically, I'm a programmer and I'm pretty new to graphics design, and I don't have much knowledge of the keywords used by the graphic design community. That's why I'm facing problem in googling this ...
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vote
2answers
2k views

Gimp : difference between crop and canvas size

I would like to know the difference between the crop tool and changing canvas size. If I reduce the size of the canvas, a yellow dashed line stays around the previous size. On the other hand, when I ...
1
vote
1answer
4k views

In GIMP how to scale up image without scaling layers?

I am trying to scale images without scaling layers. I tackled the problem of scaling down the images by selecting the largest visible layer and the cropping the image to that layer. This way none of ...
1
vote
2answers
6k views

Gimp: Copy layer 1 to layer 2's mask

Pretty straight forward question, say in Gimp I have an image with 2 layers in question, one is temporary, I want to use it as the mask for the other. How can I transfer a layer into the mask of ...
1
vote
2answers
961 views

Design tools in Fedora

I am reasonably experience developer on photoshop and it has spoiled me to no extent. I am searching for a graphic tool on fedora which is simple to generate images that I would like to use on my ...
1
vote
1answer
141 views

How to add brushes on gimp

I am a new user of Ubuntu, and to be honest completly new to the whole linux scene. I'm looking to add more brushes to my GIMP program, but I don't know how.
1
vote
1answer
139k 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: ...
1
vote
1answer
262 views

Simple way to create this 3-D pixel effect in GIMP?

It's the sad, pixelated little icon that appears when Google Chrome doesn't shut down correctly. Given a, say, off white on dark gray pixel image to use in a design, how would I get the edges of the ...
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vote
3answers
1k views

How to create multiple buttons in bulk with Gimp?

I'm trying to create a "set" of buttons. Actually I can make the buttons somewhat easily. In GIMP I have a template (It's a rectangle… soooo complicated). Take template, add text to text box for ...
1
vote
4answers
7k views

Convert icon to a transparent png

I have a set of icons that I resized to 30x30. Now I want to use them for my iPhone TabBar as specified here: http://www.idev101.com/code/User_Interface/sizes.html How can I make these transparent ...
1
vote
2answers
41 views

How can I “un-activate” the active layer in GIMP?

I like to use GIMP with the show layer boundary setting on so that when I'm working with a layer a dashed border appears around it. However, once I am finished working with the layer - and I'd ...
1
vote
2answers
84 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 ...
1
vote
1answer
103 views

How to make a watermark like this? [closed]

If possible I want to make it in paint.net/gimp because I don't have access to PS. I have tried a few programs for massive watemarking but none of them had the option for the text to look like that.
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2answers
2k 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?
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2answers
1k views

How to achieve this cartoon effect in GIMP?

Cartoon filter doesn't make it. Desired effect examples: Image 1 source: http://stackoverflow.com/a/1357489/1165509 Image 2 source: http://stackoverflow.com/a/1357751/1165509 Can you describe ...