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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for the ‘The Gimp’ Category

imagemagick – Command line convert webp to jpg? – Unix & Linux Stack Exchange

Posted by jpluimers on 2019/12/23

For my link archive: [WayBack] imagemagick – Command line convert webp to jpg? – Unix & Linux Stack Exchange

–jeroen

Posted in *nix, *nix-tools, Google, GoogleWebP, Image Editing, Power User, The Gimp | Leave a Comment »

Digitally Free: Censor An Image In GIMP

Posted by jpluimers on 2019/12/09

I used the tips at [Archive.isDigitally Free: Censor An Image In GIMP to ensure some sensitive information was redacted from a picture I published on the internet.

dfree got much further than I needed, so I stayed at a Gaussian Blur with an 80 pixel radius which was more than enough to blur out a few rectangular areas but still show the user-experience of the underlying controls.

–jeroen

Source: Digitally Free: Censor An Image In GIMP

Read the rest of this entry »

Posted in Image Editing, Power User, The Gimp | Leave a Comment »

Do not blur, but do randomly add noise or move pixels – Censoring image in GIMP – Graphic Design Stack Exchange

Posted by jpluimers on 2019/05/03

Blurring is like a hash function: it cannot be undone, but with enough plain text to blur examples, you can reconstruct the plain text: [WayBack] Why blurring sensitive information is a bad idea | dheera.net | Dheera Venkatraman’s web site

As an alternative, randomly add noise or move pixels. I used  [WayBack] Censoring image in GIMP – Graphic Design Stack Exchange. For the example on the right, I used “Filters → Noise → Spread” from the Stack Exchange answer.

With enough randomness, it is much harder to construct plain/hash combinations.

–jeroen

Posted in Image Editing, LifeHacker, Power User, Security, The Gimp | Leave a Comment »

 
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