[Digikam-devel] [digikam] [Bug 353608] The preview has blocky artifacts reminiscent of chroma subsampling

[DrSlony]

https://bugs.kde.org/show_bug.cgi?id=353608

DrSlony <bugs at londonlight.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |critical

--- Comment #1 from DrSlony <bugs at londonlight.org> ---
I just found that it's not only the preview but also the saved image which has
artifacts. This means digiKam breaks every single photo it saves!!! (though the
breakage is not easily visible unless you're working with highly saturated
colors)
imagemagick has a very useful "compare" function. I opened the image in
digiKam's editor and saved to PNG. The comparison should be identical, but
  compare 2015-10-01_k10d_9.jpg 2015-10-01_k10d_9.png c.tif
leads to
  http://i.imgur.com/RgBqnSq.png
and these differences/artifacts are very easy to see in the preview and in the
saved PNG.
Changing priority to critical as this means essentially digiKam breaks photos.

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