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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How to create an image that is black on one side, and white on the other side, using Gimp?

I need a way to create a new image in Gimp which is completely black on one side, and completely white on the other. I've tried color to alpha but that did not seem to yield the correct results. I'm ...
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1 answer
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GIMP Soft brush isn't soft

This has been annoying me for a while, essentially, my basic brush options now only have one option: I believe it might be something to do with colour options, as that doesn't work either. I can ...
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How can I draw a customized line in GIMP?

why GIMP makes so difficult to draw a simple line on an image! Anyway, could someone help me out and explain how can I draw a line in several layers of certain length and width and then align those ...
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1 answer
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How to access image histogram values in python-fu?

I have been writing code in the python-fu console of gimp and I wanted to find the minimum of an image histogram (the pixel intensity value with the least frequency). There are two functions in the ...
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1 answer
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How does one decylinderize an image?

I need to decylinderize an image. How is this accomplished? (Gimp, ImageMagick... doesn't matter.)
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GIMP: how to add dark objects to photo from another photo with big exposure?

I have a good image of planet with shadow on it (at center just under bottom line) which I want to make darker. And also I have another image with big exposure where the moons is visible. I want to ...
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Pinching the ends of a layer

I'm working in gimp. I want to put two letters on a chevron shaped shield. I want the letters to squish together at the ends and stay larger in the middle where they meet. Here's where I am. I've ...
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How to resize a broad image with GIMP?

I use GIMP 2.10.32 and I have a large broad image of about 1600px width X 1000px height and I need to resize it to about 160px width X 100px height. How to resize a broad image with GIMP? I think ...
2 votes
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Is there a Photoshop Alt+Drag equivalent in GIMP?

Is there a Photoshop Alt+Drag equivalent in GIMP, where you copy a selected object and drag it in a layer? All I can find is this, but it's under a paywall.
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How to automate image processing so all images are the same size with the same matte?

I have a bunch of 1800x1800 pictures. I need to individually put each image onto a 2200x2200 canvas and then save/export it. Is there a way I can batch this? To further explain, I need to add a 400 ...
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1 answer
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Wonky display of SVG-specified Bezier curves in Inkscape vs GIMP and Edge

I've been encouraged to move to a vector-based package like Inkscape to achieve better scalability in my images, but when I display a well-formed SVG spec with a set of Bezier curves in Inkscape I get ...
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1 answer
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Skew background with Gimp

I have a logo which is skewed and would like to skew the background to match without further skewing the logo. The image on the left is what I currently have, the skewed rounded rectangle with the ...
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Indexed PNG file blank when opening in GIMP. CHanging from Indexed to RGB has no effect

I'm trying to open a silouette file and add to a figure I made in GIMP. GIMP opens up a blank transparent background. I tried changing the mode from Indexed to RGB, but it's still blank. I tried ...
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2 answers
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Gradient tool ends up with jagged edges

I created my banner and I'm now trying to apply a gradient. The banner is smooth after creating it with the path tool, but after applying a gradient, the edges are now jagged, like this. There are ...
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How to draw a curved banner in Gimp

I'm trying to create a curved banner like this in GIMP. I've tried the Paths Tool, but I couldn't get it exact. Is there another way, or was I using the Paths Tool incorrectly?
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Gimp : rescale colors for rendering only

I have to work with grayscale .pfm (Portable Bitmap) images that apparently Gimp can open. However, values are way higher than 1, like in range [1;280]. So every pixel appears white, with % values for ...
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GIMP transparency by brightness

At the moment I have a black and white texture image (e.g. of a paper texture), and want to turn the white area transparent. However, simply selecting by colour and making the whitest area transparent ...
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1 answer
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GIMP alternative on Android or iPad

I'm searching for an open source alternative for GIMP for an Android tablet or Apple iPad. Can anyone suggest any free apps not browser based solutions like photopea
2 votes
1 answer
172 views

Reeded Glass Effect in GIMP?

I came across the reeded glass displacement system on YouWorkForThem. However, the displacement system is made for Photoshop (which I don't have), and I wanna create a similar effect using GIMP. Can ...
-1 votes
1 answer
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Need Help Finding Fitting Colors For This Panel

I've been working on a set of graphic panels and believe I've come up with a good base that fits the theme of the rest of the project they're part of, except that I'm having a very hard time coming up ...
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3 answers
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Gimp: How to swap the left and right sides of an image?

I want to "cut" the image in half, move the original left half of the image to the right, and move the original right half of the image to the left. How can I do that using Gimp?
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1 answer
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Overlapping between contours and fill colour shows when exporting svg in GIMP

I have made a bunch of images where one of the paths (heart) has an contour with a gradient applied. I selected the order: 1. Fill colour 2. contour 3. deco, so that I don't have this weird ...
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1 answer
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How to change the stroke of a premade image?

I grabbed this PNG from the internet, but I don't like how thick its natural stroke is. Is there a way to make the stroke smaller even though I don't have the raw vector data for it?
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smoothing unclean lines in GIMP

I scanned a line drawing and extracted the line work in Inkscape. I'm trying to clean up the image in Gimp (erasing dust specks and such), but the lines remain a bit jagged. I've tried selecting the ...
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Toggle eraser by tapping or holding pen button

I have a Wacom Intuos (non-Pro). The pen has no eraser on the rear end. I’d like to set it up so I can press or hold one of the thumb buttons on the pen or a key on the keyboard to toggle between the ...
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Gimp: changing all shades of a colour to another colour

Have an image which is (basically) greyscale, white on black. I want this to be green on black instead. This answer seems close, but I cannot get it to work. I probably do not understand steps five (&...
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Stroke all paths in a GIMP File

I have been working on an image file which contains a lot of paths. The file is a flow field visualization picture, and I've traced the individual streamlines in the image with the path tool to ...
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How to paint a layer mask with varying edge hardness

I would like to paint a layer mask over a photo with blurred edges in some areas but hard edges in others (basically where the mask matches the subject's silhouette and a blurred layer mask creates a ...
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How do I make an image look like vector art?

How do I make an image look like vector art, as in the IOS 14 default background images? I would like to make landscape images look like they are vector-styled. Artistic perfection isn't needed, my ...
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Force GIMP treating pixels as linear values

I have an image with no color profile information, that GIMP treats as sRGB, but actually is linear. Is it possible to switch to linear mode, without touch pixel values.
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1 answer
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Alpha to Colour in GIMP (for real)

The question has already been asked, but the accepted answer is really not what I'm looking for. I want something that measures the alpha value of every pixel, and turns that into a given colour. So, ...
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1 answer
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How do you smoothly blend these two (permanently merged) layers together?

In GIMP, my background is a solid color.1 On top of this background, I placed an image; then I used a patterned fuzzy eraser tool to cut away all of the image which I didn't need.2 And I merged the ...
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GIMP: Disable Anti-Aliasing/Interpolation when Drawing

Is there a setting that controls image interpolation when drawing? I want to create pixel art, and it is really annoying when the brushes paint the outher pixels of each stroke with some opacity.
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How do I enable the selection of different types of mode of the blur tool?

I'm using GIMP 2.10.2 in Spanish so not 100% sure the english terms I use here will be 100% correctly translated. I want to be able to set the different modes of the blur tool, now it's set in "...
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Will a PDF imported and rasterized in GIMP at 500 DPI lose quality when exported back to PDF?

Suppose I have a single-page 5x8 PDF with text on it, exported from LaTeX. If I import this PDF into GIMP at 500 DPI, then export it as a PDF, will this process make it show any loss of its original ...
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How to correct the color of one image based on another image in GIMP?

I have an image that I want to adjust in GIMP to make it look like a target image which is approved for printing. I'm just not sure how to get from the source image to the target with GIMP. Source: ...
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1 answer
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How to create parabolic surface (or reflector) with GIMP?

I can create 3d ball (spherical) shape with GIMP but now I need round surface that's curved inward. How can I do with GIMP?
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When copy and pasting a selection in GIMP it will have spots of transparency

I used the fuzzy selection tool select an outline and when I tried copy it into a new layer, It will have spots of transparency. I've tried saving the image to my disk but when reopening the saved ...
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2 answers
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How to use PhotoShop to cut out unwanted full height portion of an image?

I want to cut out unwanted full height or full width portion of an image. For example, in below gif image, I'm cutting out unwanted full height portion from the image. How to do this in PhotoShop or ...
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1 answer
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Is there a tool that can mimic MS Paint Selection + Shift + Arrow?

I know this sounds silly, but this one of the reasons I prefer to work on Windows – one feature in MS Paint... When you select something in MS Paint, you can move that selection with arrow keys. If ...
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Radial (star-like) distortion of a circle in Gimp

I'm new to Graphic Design. I use Gimp and I'm trying to create a blurry flower-like or star-like shape, starting from the circle below. I have a hard time looking up how to do this, because I don't ...
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1 answer
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How to stroke path in Gimp with single color

I'd like to obtain a vertical dashed line with the dashes having a single color. The way I though to go about this is by stroking a rectangle and removing three out of the four sides to obtain a ...
0 votes
2 answers
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Using "Clear" instead fills with the background color

When I press the Delete key or use the Edit -> Clear option, GIMP instead 2.10 instead fills my selection with my background color. How can I actually delete (set alpha to zero) the selected pixels?...
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Batch Process to cut same shape and location from screen capture image

Background During my online D&D session I grab period screen captures of the active window which is showing a 2D map or the area my token can see. As a result, all the images are the exact same ...
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3 answers
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How to draw 300 lines in a circular pattern?

I am trying to draw a spoke pattern with 300 spokes converging on a circle at the center in Adobe Illustrator. I would like each spoke to represent a different category at the end. And the middle ...
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2 answers
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replace one color with another, including gradients with other colors

I'd like to replace, in GIMP, the white in this image with another color, like blue, but without affecting the dark grey that's on the left side of the gradient transition between the white and the ...
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Does Gimp Have a Binary Function to Detect Region as Light or Dark and use it to make corrections?

In this example i would like to turn the background white and when you look at the scattered hair it obviously is really hard if not impossible when using the magic wand tool. The magic wand tool does ...
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Converting image from RGB color space to CMYK and removing ICC profile

I generated several figures for a manuscript using Lucidchart and exported these figures as PDF. Because the journal I am submitting to requires images to be in CMYK color space, I used GIMP and the ...
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How do I use the curves tool on HSV values in GIMP?

When I click the "Channel" dropdown in the Curves tool in GIMP, the available options are "Value", "Red", "Green", "Blue", and "Alpha". ...
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Revert the brightness and contrast of an xcv file to original

I have an image in my xcf file that is too dark at some region, then I change the brightness and contranst of that image. But, after I done path, now I want to change the brightness and contrast ...

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