https://bugs.kde.org/show_bug.cgi?id=521779

            Bug ID: 521779
           Summary: GwenView struggles to open and save images which have
                    been pixelated/blurred. Also, the image dimensions of
                    pixelated/blurred image increase very rapidly.
    Classification: Applications
           Product: gwenview
      Version First unspecified
       Reported In:
          Platform: Debian stable
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: [email protected]
          Reporter: [email protected]
  Target Milestone: ---

DESCRIPTION
Pretty much the summary. While I was pixelating an image to hide my sensitive
info, I noticed that after a few iterations, GwenView was struggling to open
the image and also barely managed to apply the new pixelation effect and save
the changes. Also, it hogs RAM. And the modified image dimension grows a lot,
like a lot!

STEPS TO REPRODUCE
1. Open any image.
2. Apply some pixelation/blue to any part of the image.
3. Save it
4. Repeat with the modified image.

After just 4/5 iterations, the GwenView can barely open it and apply new
pixelations and save them.

OBSERVED RESULT
After just 4/5 iterations, the GwenView can barely open it and apply new
pixelations and save them. Huge RAM consumption, huge image dimensions

EXPECTED RESULT
The modified image opens as instantly as the unmodified/original version of
that image. No memory hog and image dimensions remain intact.

SOFTWARE/OS VERSIONS

Operating System: Debian GNU/Linux 13
KDE Plasma Version: 6.3.6
KDE Frameworks Version: 6.13.0
Qt Version: 6.8.2
Kernel Version: 6.12.90+deb13.1-amd64 (64-bit)
Graphics Platform: Wayland
Processors: 12 × AMD Ryzen 5 7430U with Radeon Graphics
Memory: 16 GiB of RAM (15.0 GiB usable)
Graphics Processor: AMD Radeon Graphics

ADDITIONAL INFORMATION

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