Right-click on the layer name and choose Duplicate Layer, or press Shift + Ctrl + D (use Shift + Command + D on macOS). Open up GIMP and the image you want to blur, then find the Layers palette down in the bottom right of the interface. Let’s explore the process in a bit more detail so you can see how it works. Thanks to the layer mask, it’s possible to create some really cool effects fairly easily using gradients and a bit of mask editing. GIMP offers two tools for selecting the background: the Color tool and the Fuzzy Select tool. Now, it is time to select the background. The change should be visible under the Layer tab. Then we’ll apply a Gaussian Blur that layer, and combine it with a layer mask so we can control where we see the blurred image and where we see the untouched sharp image. To add this channel, go to Layer > Transparency > Add Alpha Channel. The image on the left still has a background, while the image on the right has had the background removed. This means you can have the color of the fabric appear through the image. A border thickness of 16 is suitable for the size of our image. Click on Filters -> Decor -> Fuzzy border. If the option is grayed out, the image already has a channel, do nothing, or better yet, remove it and add it again. To reach this, right-click on the layer you are using and click Add Alpha. Click 'Add alpha channel' to add a channel. An alpha channel will make it possible for you to have a transparent background. To use the Gaussian Blur layer method, we’ll need to create a copy of your existing image on a new layer. One of the best features of designing in the PNG format is that you can utilize transparent backgrounds. Check in Image -> Mode is it in RGB mode. In this tutorial I'll show you how to create a transparent background in Gimp using the Select by Color Tool.img used. Once you get used to the process, it can be faster than brushing, undoing, and rebrushing with the Blur Tool. It’s a bit more work, but you get a much greater degree of control over the final results. In case you haven’t guessed, this is the method that I recommend for most situations. It also allows you to maintain a consistent blur level, so you don’t have to worry about overlapping your Blur Tool strokes and creating patchy inconsistent blur amounts in different areas of your image. If you’re working on a high-resolution image and a large brush, you’ll probably notice immediately input lag as GIMP struggles to keep up with the movement of your cursor, which can be frustrating to work through.įor larger images, the layer method is much more effective. Then you simply need to brush over the areas that you want to blur. Tweak your brush size, make sure the Convolve Type is set to Blur, and adjust the Rate setting at the bottom to determine how quickly/strongly the blur effect is applied by the tool. At this point, the process basically explains itself.
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