Gimp blur (e.g. for background or faces) | Tutorial

Gimp blur

Gimp blur (e.g. for background or faces)

Many high-quality cameras today allow you to take great shots where the background is blurred. Since not all cameras and even cell phones can do this, you can touch up with Gimp. Therefore, we would like to show you how to blur a background in Gimp and in this way precisely determine the focus for the viewer. Gimp blur offers a wide range of options, so there should be the right setting for your project, even if your shot doesn’t have any blur at all. Of course, this method is also suitable if you want to hide something in the background that you don’t want the viewer to see.

The Gimp blur tool brings the solution:

Now you could start blurring different areas of the image to achieve a similar effect and we admit that 15 years ago that’s exactly how we started. But we’re smarter today, so we’ll show you how to blur an image in Gimp and apply the effect only to the areas you intend to use it. In most cases you will want to blur the background, so we have focused our example on that. In general, however, the procedure works for all other projects as well.

Step-by-step instructions:

  • Select the layer in Gimp and duplicate it (with the small double image icon at the bottom of the layer window)
  • Click on “Filter” Blur -> Gaussian Blur
  • Set the blur radius individually to fit your image. The larger the image, the larger the radius must be for a good effect. Press OK at the end
  • Right-click on the upper of the two layers and go to “Add Layer Mask”
  • Select from Layer fill type “White” and press OK
  • Select a painting tool and the color black
  • Paint the areas you want to be sharp in the image with the brush
  • Done!

Note: This is a method for absolute beginners who want to quickly get blur in the image. With selection tools and more time, this can also be done more professionally. But again, working accurately with the brush will produce a much cleaner result.

Thus, blurring an image in Gimp is not witchcraft. However, it also shows that the result depends strongly on your own work. By the way, this is often the case in image processing. If you want to get good results, you have to work well, no matter if it is about blurring or cropping in Gimp. If you have any questions, we’ll be happy to help you out in our YouTube videos. And now good luck with your projects!


Video tutorial:

coming soon

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