![]() ![]() Select the Areas to Remove Using a Selection Tool There is no obvious indication that the layer has an alpha channel added, except for the option being greyed out. If the option is greyed out, the layer is already set correctly. Then select Add Alpha Channel from the options. To do this, right-click or Control + click on the layer in the Layers panel. To ensure the deleted or masked areas will be transparent, add an alpha channel to the layer. This step is important since GIMP doesn’t automatically set layers to include transparency. Once your photo is open in GIMP, you must ensure the image layer has an alpha channel. For the color-based selection methods, I will demonstrate with this Imagy.app logo that I want to remove the blue background from.įor the more complex selection options, I have opened this Focus photography of grey dog image from Unsplash. To remove the background, you must open the image you want to work on in GIMP. There are also two ways to remove the background, one is destructive, and you can’t retrieve the background later on, while the other is non-destructive and hides the background, so you can bring it back later if needed. ![]() You can try out the different selection options to see which works best for your image or graphic. When it comes to removing a background and making it transparent in GIMP, there are a few ways to go about it, and the method you choose depends on how simple or complex the image you are working with is. Step-by-Step of How to Remove a Background in GIMP Delete the background or add a layer mask.Select the areas to remove using a selection tool.Overview of How to Make a Background Transparent Delete the Background or Add a Layer Mask.Select the Areas to Remove Using a Selection Tool.Step-by-Step of How to Remove a Background in GIMP.Overview of How to Make a Background Transparent.That would be preferably PNG, but GIF would work as well. to a file format which supports transparency. įinally, export the transparent image with File → Export As. Once the desired transparency area is selected, simply hit. When this happens, use +Drag with a Select tool of your choice to select a subtractive selection area. In this case, and barely visible, nine desired pixels in the middle of the pipe were also selected for deletion. Some of the desired image area might be selected as well because the colour matched. In between, hit + to undo.Īt times, it proves difficult to get the colour selection exactly right. ![]() Again, run a few tries while adjusting Threshold for best results. Nonetheless, do experiment with these settings and choose what looks best. For this particular example I chose not to apply Antialiasing nor Feather edges. This time around, do select Fill transparent areas as well as Sample merged. It might be tempting to perform Colour to Transparency, however this would also change semi-transparent areas within the desired image area. The right thing to do now is Select → By Colour. However, one can also use the eyedropper tool to pick a colour from anywhere on the desktop. Here, I used f3f3e9 as a background colour for plain colour filling. (In this respect, Adobe Photoshop is no different.) Hence, choose a colour which is compatible with the background on which the resulting picture will eventually be used.Ĭlick on the background colour rectangle in the upper half of the Tool Options toolbox window to change the background colour. Some colour mixing will be inevitable and even desired. Do select BG colour fill and Sample merged and run a few tries while adjusting Threshold for best results. ![]() Within the Bucket Fill toolbox options, select Fill transparent areas only when necessary. The next step is optional and consist in filling the area that should become transparent with a plain colour. This is done by selecting Layer → Tranparency → Add Alpha Channel. If this is the case, add an alpha transparency channel. Some image types lack a transparency channel JPG for example. Note: This tutorial is also available in PDF. ![]()
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