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.

294
votes
3answers
1.4m views

Making the background of an image transparent in Gimp

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 ...
10
votes
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:
3
votes
2answers
9k views

Is there way to colorize by RGB in GIMP?

There is a colorize tool in GIMP. But it provide only with HSV. Most of time I want to colorize with RGB, so I'm using converter web site like http://www.rapidtables.com/convert/color/rgb-to-hsv.htm. ...
38
votes
3answers
108k 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.
42
votes
4answers
146k views

How to select more layers with GIMP?

In Adobe Photoshop I am able to select multiple layers at once with Shift+Click. How can I do that in GIMP?
22
votes
2answers
24k views

Why does my transparent PNG not look good?

I want to convert a JPG to transparent and using GIMP I added alpha layers and transparency same way I make a GIF transparent I converted it to PNG but it doesn't display well when I load it on my ...
7
votes
3answers
19k 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 ...
5
votes
2answers
7k views

How to remove background with Gimp?

How to remove background from an image with Gimp?
39
votes
8answers
68k views

Professionals: Would you choose GIMP over Photoshop and/or Inkscape over Illustrator?

I know Adobe's solutions are more advanced, but, as professionals, do you think you would survive (against competition) using GIMP and/or Inkscape instead of Photoshop and/or Illustrator for your ...
11
votes
5answers
96k views

Replace black background with a transparent background

How can I add transparent background on this image instead of black background, but I also would like to keep the partial transparency effect on some of the particles and particles borders. Could you ...
6
votes
1answer
7k views

GIF with transparency output not as expected in GIMP

I have been trying to create a GIF using a sequence of PNGs within GIMP An example PNG from the sequence shows the correct transparency I want to be shown in the GIF, But when I process the PNG ...
4
votes
4answers
3k views

DPI Vs. PPI Vs. Image dimension, what should be taken to consideration?

I've been really facing this problem and I have found a similar link, that does not really address the problem. First of all, I'd like to mention that I use blender and GIMP for most graphics that I ...
60
votes
5answers
196k views

Add transparency to an existing PNG

I'd like to use this image on a web site. What I need to do is change the background from black to transparent, so I can use the arrow on my site maintaining the page background. I used Gimp to ...
8
votes
1answer
34k 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 ...
4
votes
3answers
1k views

I need some help understanding DPI

I have designed a custom deck of cards and I want to send my designs to print. It took me a few weeks to complete my designs using GIMP. I'm new to digital design and made a mistake – I did not set ...
4
votes
1answer
1k 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 ...
1
vote
1answer
6k views

GIMP transparency is not working

I followed this tutorial on GIMP to make an image transparent. Here is a snippet of the original image opened inside Windows Image Viewer (so the grey background is part of Windows Image Viewer, I ...
1
vote
2answers
1k views

Blurry distortion after uploading images to Facebook

Can anyone tell me what is causing the discoloration around the black areas in the red field in this image and how to correct it? It's not showing up in the source file JPG or PNG in the program but ...
70
votes
2answers
68k 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 ...
13
votes
2answers
17k views

How can I map the colors in a greyscale image to a specific color gradient?

I’m attempting to add color to some greyscale icons (i.e. all three channels are identical). I want to map the colors such that the brightest grey becomes one specific color, the darkest grey becomes ...
20
votes
3answers
30k 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 ...
3
votes
5answers
2k views

Is it easy to convert an image to a cartoon with high quality?

Is it easy to convert an image to a cartoon with high quality ? Like this: I've watched this tutorial : but the quality of the outcome is still far away from the one above. Is there a way to make ...
5
votes
1answer
6k views

How to edit palette in an indexed image in GIMP 2.8?

I remember in GIMP 2.4 editing palette in an indexed image was as easy as changing the foreground color but I'm a little lost in GIMP 2.8 as there is no Dialog menu. So, I played around a little and ...
4
votes
2answers
12k 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?
4
votes
4answers
22k views

GIMP How to make existing gif background transparent

I have the following gif, how to make the grey background transparent if not white?
13
votes
3answers
49k views

GIMP: How to crop a layer?

I have a screenshot where I want only a part of the pasted image, and I want to turn the white that's in it transparent. First I need to crop the pasted image. I have selected the layer and a ...
10
votes
2answers
18k views

Can I change the default Gimp transparent background to white?

I'm using Gimp 2. The default grid-style transparent background makes it incredibly difficult to get a sense of what the image will actually look like, when I finally display it over a background. Is ...
8
votes
1answer
9k 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'...
6
votes
2answers
7k views

Overlay a graphic on a photo or image

How would I overlay a graphic (a logo in this case) on a t-shirt and make it look like it's really there, not just superimposed (wrinkles, lines, etc?) I don't have photoshop or any adobe software, ...
5
votes
5answers
5k views

How do I define or deselect areas where the “Color to Alpha” effect should not be applied?

I have an image where the background is white and there are various important components that are also white. I want to just change the background to alpha, but "Colors to Alpha" - by default - ...
3
votes
1answer
8k 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 ...
2
votes
3answers
11k views

Optimizing a screenshot for adding in a document and printing

This question is not directly related to graphic design, but I think you guys can help. I am writing a thesis and I need to add several screenshots of the tools I have used and screenshots of web ...
7
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 ...
6
votes
5answers
8k views

GIMP: How to apply a mask to multiple layers?

I'm new to GIMP, so I'm having trouble accomplishing the following: I want to apply the same layer mask to all of my layers without having to merge them. If this is not possible, the end result I'm ...
4
votes
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 ...
2
votes
1answer
3k views

Create rounded button with inset edge, gradient and inset text with Gimp

This is my first attempt at seriously using Gimp. I am more of a front end developer slash developer myself and I have only used Gimp or Photoshop for very basic stuff such as removing backgrounds, ...
1
vote
1answer
147 views

put partly transpared photo on top of panorama

What is it nessesary to do if I want to see just black edges from background image in image placed on top? Here are links to source images This is what I want to create: You can see there are ...
1
vote
4answers
735 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 ...
0
votes
4answers
1k views

How can I extract and magnify video frames?

I am hoping this is the right area to post this. I have 1080p trail camera footage of someone stealing equipment. The truck plates are a little too far away in the video to clearly make out the ...
31
votes
2answers
142k 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 ...
65
votes
1answer
83k views

GIMP: Trying to move selected text layer but moves background layer

I have a background overlay on which I have three text layers on top. Now I want to move these text layers around on the overlay, but I can't get it to work. As soon as I click inside the text layer ...
23
votes
5answers
49k 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.
8
votes
8answers
14k 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 ...
29
votes
5answers
68k views

How do I insert arrows into a picture in GIMP?

I'd like to insert perfect arrows (the sort you can make using Inkscape: straight, symmetric tips, of customizable width and length, etc.) into images in GIMP. At the moment the closest thing to this ...
23
votes
5answers
3k views

What's the most efficient way to “blank” old comic word balloons while retaining paper texture?

I'm taking very old (1940s and '50s) comics and trying to remove the text from some of their word balloons. I don't want to just erase their contents to pure white space, though, as the paper colour ...
15
votes
3answers
44k 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 ...
13
votes
4answers
57k 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, ...
8
votes
2answers
39k 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?
5
votes
1answer
1k views

Create a clockwise gradient in GIMP

I was wondering if anyone knows a relatively easy way to create a clockwise gradient in GIMP. If you could imagine a vertical line 1ps wide (The length of the radius), and then rotate it 360 degrees, ...
9
votes
3answers
8k views

How to edit existing rectangle selection in GIMP?

I have a rectangle selection. As long as I stay on the rectangle selection tool I can click in the rectangle to change the size. If I switch to another tool (e.g. move tool) and then come back to ...