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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13 views

GIMP (or others): How to remove background (by color) of several images in one step?

I have a set of about 200 PNG-images in like that: Only black and white, no colors, no grey. I need the background color (white) to be removed and tried to do so in macOS Preview (with that Instant ...
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1answer
19 views

Opacity formula in GIMP 2.10.0

Let's say I have a background layer (B) filled with RGB 255 115 0 (C1), and a foreground layer (F) filled with RGB 64 64 64. Both layers are in Normal blending mode, the opacity on F is 80%. The ...
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1answer
188 views

How to cut along guides to form layers in an image

I have an image that I need to split up into multiple smaller tile pieces. Each tile piece should be in its own layer. While I could manually create each layer, this would take a very long time, ...
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1answer
97 views

Displaying 20 in x 600 in GIMP/Photoshop file as PDF in Acrobat Reader

I am preparing the art project which involves using characters to obtain a visual and not literary artwork. Something like concrete poetry. Project is supposed to be 20 inches of width and 15 - 20 ...
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2answers
210 views

Disable Tool Dialogs in GIMP

I would like to know if there's a way to disable tool dialogs in GIMP like the one in the picture. I would rather use tools without it since it blocks the project I'm working on and there isn't a lot ...
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1answer
11 views

Make text box center along columns

I want to create text where each column is centered horizontally based on each letter's center, like this image: However when I try this in GIMP it inevitably ends up off center using the text tool. ...
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1answer
95 views

What do I need to manipulate in GIMP to follow these specific color patterns I'm working with?

I am using GIMP and my images are appearing darker in an app I'm using, specifically OOTP 18. For example, my blue #0054a4 displays as a darker blue #003184, when I need it to appear as blue #004295 ...
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2answers
3k views

Disable floating layer mechanism in GIMP

GIMP applies a floating layer whenever I paste content into a document. Unlike Photoshop, this requires me to create a new layer each time which is an annoyingly contrived and confusing process. How ...
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1answer
22 views

How to cut multiple selections of same aspect ratio from large scan(s)

I have several high-resolution scans and would like to crop details from them, always using the same aspect ratio (but not necessarily the same size). The intended use is for an article, where each ...
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1answer
368 views

How to fully change a border colour in GIMP?

I did the whole select colour -> fill colour thing but all the edges are frayed, how to fix this. Also tried the colour exchange mapping, didn't work so well.
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3answers
36 views

Centered grid with GIMP

Working with GIMP I need to use the grid. It is aligned on the top-left corner of the image, but I need it to be centered, splitting the incomplete squares on both the sides. I tried with Image > ...
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3answers
121 views

How to flip brush in GIMP?

How do I flip brush in Gimp? There is a option to rotate. But I want to flip Brush horizontally/vertically. Also is there any way to set keyboard shortcut for rotating brush while using it with tool(...
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1answer
17 views

Change multiple png sprite file color to another color

I have a sprite of 100 png files. This sprite file contains two colors only. Grey and blue. Which software or application would someone recommend where i can rapidly change the two colors of these png ...
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1answer
29 views

Change how big a pixel is in an image

I have an image which I am trying to adjust by moving some parts, but when I try to move a certain part, even when I'm zoomed in as far as possible, the most precisely I can move it is by one pixel. ...
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1answer
21 views

Checking details of levels adjustment after adjusting

I adjusted levels manually on a picture and would like to know the values to apply the same adjustment on other similar images. Does GIMP let me view those settings after the fact?
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1answer
64 views

Can I fill based on the color of a lower layer?

I'd like to use the bucket fill tool to fill shapes based on the color of the layer below. Ideally totally automatically, like filtering the image. For example: create a new image. Use Filter -> ...
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8answers
17k 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 ...
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2answers
1k views

Problem colorizing with GIMP

Just started experimenting colorizing with GIMP. When I add a layer on the pop up window I choose foreground color (which has been set previously) however I keep getting a grey shade no matter what ...
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6answers
15k 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 ...
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1answer
45 views

How to tile an image with exact dimensions (any program)

I am trying to print tickets for my school and they need to be exactly 14.5 cm by 10.6 cm. How can I achieve this by tiling the image I have of the ticket so that they print out exactly at this size ...
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3answers
984 views

The image gets blurred after zoom or scale action in GIMP. How to get clear image?

Since I am a beginner, I don’t have much knowledge of designing tools. I am trying to resize the image using GIMP but it gets blurred. Please tell me how to get clear image after resize?
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1answer
25 views

Exporting GIMP image to pdf with specific page size

I need to use GIMP to generate a particular .pdf with a specific page size, namely, A1. For this question, I did a minimal working example with A4 page size, since I believe the specific format ...
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1answer
57 views

How does one align two maps with different projections in GIMP or a similar program?

I am trying to take a modern world map and transpose historical borders taken from various snippets of other maps onto it. Unfortunately these maps are all of different perspectives and thus no amount ...
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2answers
54 views

How to batch convert RAW NEF to JPEG in GIMP?

I have dozens of pictures in RAW .NEF format from a Nikon camera that I want to convert to JPEG. I found this page with a Script-fu plugin that has a batch mode. I installed GIMP and UFRAW with: brew ...
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1answer
36 views

How to make Darktable work in GIMP?

When I open a RAW NEF (Nikon) image in GIMP, the dialog says: GIMP Message Opening '/path/to/file/_DSC0001.NEF' failed: There is no RAW loader installed to open 'Raw Nikon' files. GIMP currently ...
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2answers
111 views

Newbie Help. How to create transparent layer from checked image?

I just bought this image from Shutterstock which comes as either a jpg or an eps. I use Gimp and am familiar with transparent layers ( which is what I want) but this comes as a flat image. I thought ...
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2answers
115 views

What are some techniques for designing realistic-looking planets and moons?

I have had this problem for years now. I know what I want for my fictional planet or moon, and yet when it comes to creating an image of it, I continue to fail. How can I break down the task of ...
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1answer
46 views

Gimp Tools Bugged

my some of my tools not working anymore like I can change their settings like size or shape but they're not actually drawing anything its like drawing transparent and the brush cursor stuck at the ...
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2answers
642 views

GIMP 2.10 - Bump Map not working

I'm trying to create a piece of beveled text. Here's what I'm doing: Create the text in a layer. Apply the bump map filter with the text layer selected, using the text layer as the AUX channel. ...
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2answers
85 views

Where Can I Find Blend Mode Math Accurate to Photoshop?

Most results from Google offer equations/formulas for blend modes that aren't reproducible in Photoshop, especially those that involve division such as Color Burn and Color Dodge. For example, RGB(255,...
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1answer
32 views

How to automatically outline shapes

I need to draw outlined shapes, like in this example: I created the example selecting the coloured areas and using Edit > Stroke selection, but it isn't very handy when there are several shapes. I'...
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0answers
54 views

Matting Levin foreground select not working in gimp 2.10

I'm trying to select a foreground object from a photo to remove the background using gimp 2.10.14. I am following these steps: rough outline of object using lasso tool press enter to enter ...
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3answers
1k views

An opensource equivalent to Photoshop that has Lasso and Warp tools?

Using Photoshop, I can edit the image by using the lasso tool and warp tool, but Photoshop is not open source, I need an open source software to edit the image by using the same tools. I tried GIMP ...
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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 ...
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2answers
98 views

How to make things opaque using GIMP?

I followed this walkthrough on how to select colors with anti-aliasing, and when I finished, everything that hadn't been deleted was not opaque. Yet the layer was at 100% Opacity. How do I fix this?? ...
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2answers
59 views

How to add blur / round corners to only white rectangle layers

I want to add a blur or rounded rectangle to only the white rectangle layers, which are behind the text. Trying rounded rectangle with the layer selected, only modifies the main layer. I have tried ...
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1answer
73 views

Gimp does not allow me to select any format other than A0 for new image

I am want to create a new image in Gimp in A4 size. When I click on template, I can’t choose A4 or any other format except A0. Before, it allowed me to choose any format. How can I fix this?
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2answers
52 views

How to move contour of selection instead of content of selection (GIMP)?

I was able to do so, but those buttons gone (probably compatability with new hardware issue) , but anyway I need some workaround - shortcut or using a menu bar. How I was doing it in the past: I ...
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1answer
19 views

Transform is limited to border which I can't change

I have an object which is limited by black-yellow border Then I surround it with cage transform markers Then when I move those markers to do the transformation, the object is still limited by the ...
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1answer
28 views

Rectangle Select Tool moves the image instead of creating a selection in GIMP

I'm a reasonably seasoned user of PhotoShop but a newbie to GIMP. I need to take Print Screens and fuse/crop them together to create images that display full views of the pages on a certain site. To ...
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3answers
58 views

Is there a way to create a brush working as a pattern?

I have a pattern that I use to draw arbitrary-shaped curves like this: To achieve that I create a layer filled with my pattern and a blank layer, then I "draw" my line erasing the second one. A brush ...
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1answer
51 views

Gimp: why can't I edit an image when I open it the first time [closed]

When I open Gimp on Windows and then open any image e.g. jpg, png I can't do anything with it. I've been using Gimp for 10 years+ and this problem started occurring in the past two years with all ...
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6answers
50k 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.
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1answer
26 views

How do you get a gimp plugin/script to appear in menu [closed]

I am using Gimp 2.8.16 on Ubuntu I am following the tutorial here I have created the script hello_world.py and saved it to ~/.gimp-2.8/scripts.hello_world.py I restart Gimp, but there is no sign ...
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1answer
204 views

How can I (using Gimp) accurately remove a red background from an image?

I've been designing some custom backgrounds for a game recently, although I have little to no skill with photo editing. I've usually only used MS paint, but this particular project required tools that ...
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2answers
78 views

Restore transparency to a part of an image

I have this image: Downloadable here. I need to isolate the libellula and "restore" the transparency of its wings, the areas highlighted here: I haven't problems to isolate it but how can I restore ...
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1answer
22 views

Show name of custom patterns in GIMP

I'm creating a set of custom patterns with GIMP. When I import them I would like to have their names below the filter field, as the default ones have: However, GIMP only shows a #1-like string: I ...
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2answers
67 views

How to create light cone and haze effect

I have an image with stage lights in it. I am trying to add an effect so that it looks like the room is filled with haze and therefore there would be a cone coming from the light sources. Here is my ...
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1answer
25 views

Can not fill or paint on layers in Gimp [closed]

I am working on an image in gimp that has multiple layers. I just added a new layer, and am now observing some odd behavior. I have three layers, A , B , C. C is the newly created layer. For some ...
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1answer
141 views

GIMP Clone using different size, rotation, reflection, perspective transforms?

Is there a plugin for GIMP to enable cloning with transforms (size, rotation, reflection and/or perspective) performed automatically? Currently, the only way I can see to do these things is to ...