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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340 votes
4 answers
1.5m 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 ...
  • 3,411
59 votes
3 answers
138k 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.
2 votes
2 answers
10k views

Create engraving in GIMP/Inkscape

I want to turn a photo in a engraving style picture, like for example this one using GIMP and, if possible, then make an SVG out of it with Inkscape. Can you recommend any filters/tools/plugins/...
5 votes
2 answers
13k views

Is there way to colorize by RGB in GIMP?

There is a colorize tool in GIMP but it only provides HSV. Most of time I want to colorize with RGB so I'm using RapidTables' RGB to HSV color conversion. Is there way to colorize with RGB only?
  • 155
92 votes
8 answers
263k 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?
  • 1,107
71 votes
5 answers
237k 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 ...
  • 813
23 votes
2 answers
26k 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
3 answers
746 views

How to remove backgrond using a photo with only the background? (GIMP/others)

I'm trying to remove the background from a photo with a subject, but I would prefer not need to use this kind of techniques to select the background. Some magic-fu would select the shape since it's ...
7 votes
3 answers
23k 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 ...
6 votes
1 answer
8k 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 ...
  • 183
5 votes
2 answers
8k views

How to remove background with Gimp?

How to remove background from an image with Gimp?
5 votes
4 answers
4k 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 ...
40 votes
9 answers
76k 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 ...
29 votes
2 answers
42k 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 ...
17 votes
5 answers
132k 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 ...
  • 273
7 votes
1 answer
15k views

How to make retro 80's chrome text in GIMP? [closed]

I want to make images with the cool retro chrome text, like the image below. How do I go about doing this in GIMP 2.8?
4 votes
3 answers
2k 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 ...
3 votes
1 answer
5k 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 ...
81 votes
2 answers
78k 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 ...
  • 913
24 votes
4 answers
50k 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 ...
  • 415
18 votes
3 answers
74k 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 ...
  • 283
15 votes
3 answers
23k 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 ...
  • 253
10 votes
1 answer
51k 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 ...
  • 203
7 votes
4 answers
7k views

How do I convert images of a page of text to pure Black & White and sharpen the text?

I'm a research student working with large numbers of archival documents. For speed when at the archives, I photograph the documents (with a decent but not fancy digital camera), producing colour .jpg ...
6 votes
1 answer
14k 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 ...
  • 133
4 votes
1 answer
4k 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 ...
2 votes
3 answers
13k 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 ...
1 vote
1 answer
10k 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 ...
53 votes
8 answers
18k views

Q: Gimp vs Photoshop

I have been using Photoshop since the beginning of time. Other than the infamous Paintshop Pro, it is the only image editor I have used. I am about to embark on an adventure of trying out GIMP as a ...
  • 1,697
16 votes
4 answers
73k 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, ...
  • 263
12 votes
2 answers
40k 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?
  • 471
12 votes
4 answers
68k views

PNGs made in GIMP not coming out transparent

I’ve had this happen with more than one image lately. I open an image in GIMP with the purpose of making the background transparent. The first thing I do is Add Alpha Channel. I proceed to remove ...
  • 121
9 votes
1 answer
11k 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'...
  • 305
8 votes
2 answers
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 ...
7 votes
5 answers
14k 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 ...
7 votes
2 answers
8k views

Mapping all colors (except background) to a single color in GIMP

I have a spotty image. The image has maroon and black spots (with gradient) on a white background. I would like to convert every color (except white) to green color using GIMP.
6 votes
2 answers
13k 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 ...
5 votes
5 answers
7k 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 - ...
5 votes
4 answers
50k views

GIMP How to make existing gif background transparent

I have the following gif, how to make the grey background transparent if not white?
  • 61
4 votes
2 answers
2k 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 ...
3 votes
5 answers
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 ...
  • 155
2 votes
1 answer
77 views

Effective background removal from portrait photo

There is a nice tool provided by Adobe for removing bacgrounds for photos, https://express.adobe.com/tools/remove-background. I have tested it with portrait photos meant for documents, and it works ...
  • 121
1 vote
4 answers
1k 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
1 answer
442 views

GIMP: how to edit a sngle-layer transparency using a white background?

I'm trying to edit an image that is just one layer which is transparent. It's hard to see the content because of the default gray-black checkered background. How can this be configured to white? I'm ...
  • 151
1 vote
1 answer
161 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
1 answer
1k views

Gimp color picker is wrong [closed]

I'm new to Gimp and it seems the color picker does take a color brighter than it is supposed, i have to get the hexa color from another app using screenshot. is there any settings that will make it ...
80 votes
1 answer
112k 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 ...
62 votes
4 answers
88k views

GIMP: 'move layer' stops working

I'm having intermittent problems with GIMP, where the 'move layer' command suddenly stops working. The mouse pointer changes to the one below: When I make an explicit selection, e.g. CTRL+A on a ...
  • 723
44 votes
5 answers
119k 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 ...
  • 1,547
42 votes
3 answers
181k 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 ...