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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197 views

Gimp 2.10.14: How to make the panels bigger on 4K monitor?

I am using a 4K monitor with 200% system DPI. (200% is a little big for me and I would like to use 150%, but some applications did not scale well under 150%, so I had to choose 200% DPI.) Now, I am ...
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1answer
24 views

Why is GIMP brightness and contrast adjustment with a luminosity mask not color-neutral?

Here is the background part of a picture: I want to brighten the shadows and midtones and leave highlights untouched. I create a luminosity mask following the official tutorial, then apply brightness-...
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1answer
156 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
102 views

Opacity formula in GIMP 2.10.0

Let's say I have a background layer (B) filled with RGB 255 115 0, 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 resulting ...
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1answer
18 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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2answers
4k 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
24 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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3answers
586 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
31 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
22 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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2answers
2k 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
17k 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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3answers
1k 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
419 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 ...
3
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2answers
476 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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2answers
145 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
122 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
211 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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0answers
291 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 ...
0
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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
57 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
71 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
481 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
52k 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
55 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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2answers
153 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
31 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 ...
2
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2answers
128 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 ...
0
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1answer
83 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
51 views

How to Fill Edges of a Selected Area in GIMP

Is there a way to select an area in GIMP, then fill every part of the selected that is a certain distance or more from the edges of the selection other than doing it manually? So a black circle like ...
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1answer
119 views

GIMP - How copy/paste shape- in my case, a rectangle?

I know I can using the rectangle selector then using edit=>stroke selection to make my selection's shape a solid rectangle's shape. Now I would copy the exact same selection's rectangle to variate ...
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2answers
94 views

Is there a function to “merge all layers” in GIMP?

It would be more effective. Currently I have to merge them one by one. In some cases it can be a time consuming process.
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0answers
33 views

How can I align text to some curve?

How can I align text in GIMP so one of its sides “touches” some path or the text is placed inside path? Example: The text is aligned so right side of text line bounding box is at the number 4.
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2answers
12k views

How to edit an EPS with GIMP or Inkscape

Newbie here. I wanted to design a wallpaper, (I was starting with a 1280x1024 size), so I downloaded this graphic from freepik [ see link below ] but I cannot figure out how to edit it. First I ...
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1answer
45 views

GIMP, can I make selections where the selection line has 'zero-width'?

I have a PNG file of, for example, a person with arms and legs. I want to select an 'arm' and copy it into a new layer. I then want to delete the 'arm' from the original image. So I would have one ...
12
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4answers
18k views

GIMP - How do I change UI DPI?

This is a problem I have been having recently. My screen size has a pretty high pixel density and, as a result, all of GIMP's icons are criminally small and very difficult to look at. I've tried ...
3
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4answers
9k views

How to downsample an image to match a 16-bit color mode?

NOTE: I'm a systems administrator, not a graphic designer, so I'm a total n00b when it comes to image manipulation. That being said, I thought this would be the best forum to ask this question: I am ...
0
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2answers
250 views

Gimp - How do I make a selection transparent

I am using GIMP. This seems like such a simple thing, yet I just can't get it to work. I did "color to alpha" on a selection, but it only made it partially transparent, very annoying. So I have ...
1
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2answers
136 views

How do I crop a layer in GIMP?

Sometimes, I'll have several layers on an image and I want to crop one of them. NOT resize it, crop it. Every technique I've tried simply crops EVERYTHING, not just the layer I'm working on. I have to ...
0
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1answer
44 views

Allign 3 B&W layers to make an RGB picture

I'm trying to process a picture of Jupiter from Junocam and I'm trying to align 3 B&W picture to make an RGB picture but it's not working, I tried differents opacity but it still not working, I ...
0
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1answer
211 views

GIMP - Gradient directed by curve drawn by path tool?

Is there a way to apply gradient effect to the path drawn by curve tool ? I am trying to make silky cloth shown as below. For that I need to draw gradient on path. How can I draw this in gimp ? Or ...
0
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0answers
27 views

Controlling transparency in GIMP?

I have a question. Can you make it half transparent? Or any other percentage? I’m making a Minecraft Resource Pack and I am trying to make the stained glass. Thanks!
2
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2answers
1k views

Gimp: How to warp an image to take shape of path?

I am new to Gimp. I would like to warp an image such that it fills the closed path (closed path and imported image is shown in the image below). The given closed path has a shape of truncated pie. The ...
0
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1answer
81 views

Move selected pixels on multiple layers simultaneously on GIMP

I have several images of the same brick texture but with different color values for different purposes like this: They are in reality much bigger and there are 10 images in total. For my project ...
0
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1answer
508 views

Compatible Photoshop format for GIMP

I am using GIMP on my Ubuntu, and need to open a file some one else made with Photoshop. What file format preserves the layers, colors and preferably the text/fonts when exporting from Photoshop and ...
67
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5answers
216k 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 ...
1
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1answer
133 views

How to use a linear workflow in GIMP?

This question is for those who use Blender together with Gimp for post-processing, texturing, etc. How to work in Gimp 2.10.8 as if you were working in Nuke or Blender Compositor? I'll explain: In ...
0
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2answers
369 views

How to select a bunch of points of a path for removal in GIMP?

I created a path with a lot of points. I then duplicated the path so that I can attempt separating them into two smaller paths. Is there a way to select a bunch of the points as a group to perform ...

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