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How can I select a region in an image file, and hide or blur the region (e.g. barcode, or personal information) in any way that you think is reasonable?

I have tried pinta. I first select a rectangle region, and then try to use paint bucket to fill the region, but it doesn't fill the region at all, or I don't know how.

Thanks!

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  • What do you mean by hide ? Does it hide completely or kinda blurring it ?
    – Liso
    Mar 9, 2019 at 16:08
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    Since you seem to prefer a solution with pinta, make that clear in the question itself rather than as comments to answers.
    – DK Bose
    Mar 9, 2019 at 17:40

3 Answers 3

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Open the image in GIMP. Click Tools > Selection Tools > Rectangle Select Tool. Outline the area you wish to blur.

Next, click Tools > Paint Tools > Smudge. Use the mouse to smudge the selected area as desired.

Next, click Select > None. Next click File > Export As... Export the file as any file format you wish. Exit GIMP.

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  • Thanks. Is it possible to use pinta? I guess so, but I don't know how
    – Tim
    Mar 9, 2019 at 16:27
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    All I can get pinta to do is crash, so I haven't any suggestions.
    – chili555
    Mar 9, 2019 at 17:05
  • thanks, didn't wanted confidential documents to fall into wrong hands by submitting to web editing sites, i need to learn gimp, its amazing. Sep 26, 2021 at 22:29
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You can give Shutter a try:

sudo apt install shutter

If you're using 18.04 or a later version, then you should install the required dependencies in order to edit in Shutter (Skip if you use 16.04):

wget https://launchpad.net/ubuntu/+archive/primary/+files/libgoocanvas-common_1.0.0-1_all.deb
wget https://launchpad.net/ubuntu/+archive/primary/+files/libgoocanvas3_1.0.0-1_amd64.deb
wget https://launchpad.net/ubuntu/+archive/primary/+files/libgoo-canvas-perl_0.06-2ubuntu3_amd64.deb
sudo dpkg -i libgoo*.deb

Open the Shutter program, take the screenshot or open your image file, then click "Edit", this will bring you to editing process.

To blur, click the Blur tools.

screenshot, blur tool on left panel

Then, you can select a region you want to blur/censor.

rectangular selection blurred

Save it, and see your result.

screenshot, blurred section

The result will be saved in the ~/Pictures directory in your home folder.

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  • Thanks. Is it possible to use pinta? I guess so, but I don't know.
    – Tim
    Mar 9, 2019 at 16:42
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You can do that also with Pinta: EffectsBlursGaussian Blur.

I've also written a more detailed tutorial with screenshots on my blog. Also checkout the official Pinta docs.

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