Hot answers tagged

85

Using fast bucket fill instead of contour selection Note: This tutorial is also available in PDF. Add an alpha channel Some image types lack a transparency channel; JPG for example. If this is the case, add an alpha transparency channel. This is done by selecting Layer → Tranparency → Add Alpha Channel. Bucket fill with colour [optional] The next step ...


82

If you imported a GIF file into GIMP, your problem is that your image is in indexed mode. In this mode, most filters and color tools won't work, and be grayed out (up to GIMP 2.8 - expect news on this front on GIMP 2.10). So, all you have to do there is to go to Image->Mode->RGB, and the Color to alpha menu entry will be enabled. I don't think that ...


79

Looks like your move tool is in 'Move selection' mode. Check the Move setting in the tool options (this image is from the docs and shows Move layer mode): The Alt key toggles to the 'Move selection' mode (Ctrl does the same for 'Move path'), and is supposed to switch back to 'Move layer' once you let go of the key. If you manage to steal the input focus ...


77

Are you sure you're clicking on the actual letters in the text? When selecting a layer to move, GIMP will pick the uppermost layer which is non-transparent1 at the point you clicked, ignoring any transparent layers that might be on top of it. What this means is that, using the "Pick a layer or guide" mode of the move tool, you can only drag a layer around ...


64

We can easily slice an image to subimages along predefined guides using the Guillotine tool: Define Image > Guides > New Guides (by Percent) at 25% 50% 75% horizontal and vertical resp. Apply Image > Slice using Guides (in Gimp 2.8. Image > Transform > Guillotine) to slice into subimages: To export the images in ready to use HTML code we ...


55

To answer your literal question, there are a few areas where GIMP can be better than Photoshop. It's not particularly common (usually, at best you can expect them to do the job equally well), but it does happen. Off the top of my head (and keeping in mind that it's been many years since I last used Photoshop), here are a few examples: As a historical ...


52

Before I start, just to let you know I'm a happy and frequent user of GIMP, but I also have an Adobe CC account, and use the latest version of Photoshop, which I also enjoy using. I'm not a fanboy of anything. GIMP is not Photoshop, and it doesn't really try to compete with Photoshop. It's not commercially developed, and so it's not a commercial competitor,...


42

Whenever we choose to change a color to transparent with the Layer > Transparency> Color to alpha tool we will also introduce semi-transparency of colors different to the selected. Below this is shown for making white in the background transparent: In case this is not wanted we need to select only a single colored area for transparency. This can be done ...


34

Your move tool is set to move the selection, not the area selected by. You should: Transform your selection to a float selection using Select->Float In the move tool options choose to move Layer instead to Selection (by pressing the first icon near "Mover" in "Opciones de herramienta") Now, it should be possible to move the shine.


27

Well- this is more of an answer that I wanted to post- but was unable to. This is how you do it- Open the image in GIMP. In the Layers window, right click and select "Add Alpha Channel" From the Colors drop-down menu- select "Color to Alpha" Done- the pop up asks you the preset color, click OK and your image can be saved now as png with transparent ...


26

You could use the "difference" layer mode to create a layer mask, and apply it to B like this: Open both images as layers, A on the bottom, B on top On the layer's dialog, mark B's layer mode as "difference". You now should see the image mostly black is the images are alike, with the colored areas marking the areas that are different. These colors, however, ...


25

If you want to resize the contents as well (layers, paths...) see Image>Scale image. If you want to just reduce the canvas size, see Image>Canvas size. If you have a 16x16 layer in the middle of large canvas, Image>Fit canvas to layers can also be a solution.


24

I had been having this problem FOREVER and I just found a solution, even though the person I was talking to about the move tool made me actually figure out the problem. The alignment tool is selecting the top most layer where ever you click, regardless of what layer you have selected/transparencies. Try hiding the layers above what you are trying to work ...


24

This is for GIMP Start with something like an A5 canvas size Create a new brush like this Create a new Paint Dynamic preset, and set the matrix as follows Increase the size of the brush as you like, and paint random coloured lines, choosing different colours, on a new transparent layer above a black background layer. Continue until you've built up enough ...


23

You can (from 2.8 on) make use of layer groups to get most of the functionality you might want: http://docs.gimp.org/en/gimp-layer-groups.html From the GIMP docs: You can create a layer group either by Clicking on the Create a new layer group button at the bottom of the layer dialog (looks like a folder icon) Through Layer → New Layer Group, or Through ...


22

In the tool options for the eraser: Select the first brush (pixel). Select a size of 1. Select hard edge. Set Dynamics to Dynamics off Then the eraser should do what you want. (Also, do not forget that you need an alpha channel on the respective layer.)


21

With Gimp comes a plugin Resynthesize together with a Python script Heal Selection. On Linux the plugin is contained in the package gimp-plugin-registry. After selecting an area with the select tool: We can "heal" this selection from "Filters > Enhance > Heal selection...". Here I made a random healing with 10 pixels from the ...


21

There is a plugin: Download arrow.scm and save it to /home/username/.gimp-2.8/scripts (on a Linux system). For example: cd ~/.gimp-2.8/scripts wget https://web.archive.org/web/20160708211721/http://registry.gimp.org/files/arrow.scm Check your version numbers, naturally. Next time you start up Gimp, you should see an Arrow option under the Tools menu. ...


20

This can be achieved by clicking "Colors" --> "Colorify..." (Not "Colorize...") That brings up a dialog box. Click the color box next to "Custom color:" to enter HSV, RGB, Hex, or use a color picker. Documentation for "Colorify" is available here: http://docs.gimp.org/en/plug-in-colorify.html


19

Copy&paste is the wrong approach to copy layers from one image to another - this will only transfer the layer content, and as you have discovered that isn't the same as a layer or group of layers. Instead, drag the layer or layer group from the layers dialog of the source image to an image window of the target image. This will keep them intact, ...


19

Turns out the image was somehow using Indexed color mode. The solution was to go to Image > Mode > RGB.


19

Editing GIFs can be complex if it has lots of frames. You need to edit each frame individually, and this can be tedious. Anyway, it is possible. Here are the steps. To open click File > Open, navigate to the GIF file, select it and open it. The image will open with each frame as a layer. Click Filters > Animation > Unoptimise - this will make the frames ...


18

If you have control over the scanning, or can get them rescanned, increase the contrast setting in the scan and set the black point at the darkest bit of text you can find. That would make the steps below easier. If not, read on... Here's part of a fairly typical old document scan: The details will be different depending on the document (this has somewhat ...


17

I see that those answers are a bit old. This instructions are for Gimp 2.10. Once you have created your layer, right click on it. Choose Edit Layer Atribute. Then a dialog appears Alter the offset values to the position you want your layer on the background image.


17

To be sure.. Convert it to a real layer Activate the move-tool Choose "Move the active layer" in the settings panel for your tool Activate/select your layer Click once on the canvas Depending on circumstances, you could skip different or all steps. But if done correctly, you should now be able to move your layer with your mouse or the arrow keys! EDIT: If ...


17

There are several ways of doing it in GIMP, and it depends on the end-result you want. From your question, one can't know if your desired result is really a "black and white" (only) image, or a desaturated image, with up to 256 shades of gray. Also, you have options to either desaturate only the active layer or selected region, and continue editing the ...


16

To crop a layer: Double-click the "Crop Tool" in the Toolbox. In the Crop Tool's "Tool Options" dialog, check the checkbox next to "Current Layer Only". Note: By selecting this box, all future use of the crop tool will only apply to the current layer. You must open this dialog again and uncheck the checkbox to crop the image again.


16

Here's the answer you're most likely looking for: Scenario: say in GIMP you have a logo image, you increase the Canvas, center the logo inside the enlarged canvas, and you want to fill the extra canvas with an eye-dropper color. However, the paint bucket shows a black circle with line through it indicating no-can-do. Do this: from menu, select "Layer", ...


16

I'd like to see the color value updated too... at the moment I'm using the Pointer Dialog, which is updated while moving the mouse and shows the numerical values under the cursor: You can show it using Windows... Dockable dialogs... Pointer


15

I would approach this in a similar way to horatio, but I would probably keep the original image in tact as much as possible (assuming you want to preserve it). I'd create a similar texture to the paper like so: It's just a noise texture against a subtle gradient with some distortions via a horizontal and vertical scale. You'll notice some color variations ...


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