https://bugs.kde.org/show_bug.cgi?id=452084
Bug ID: 452084
Summary: Krita exported PNG or JPG images are desaturated on
social media even if sRGB 8bit is forced
Product: krita
Version: nightly build (please specify the git hash!)
Platform: Compiled Sources
OS: All
Status: REPORTED
Severity: major
Priority: NOR
Component: Color models
Assignee: krita-bugs-n...@kde.org
Reporter: gbird...@gmail.com
Target Milestone: ---
Version: 5.0.2-alpha (git ca4f0c8) (Krita Plus)
SUMMARY
Before I worked with a sRGB monitor, but recently I switched to a wide gamut
DCI-P3 monitor (calibrated) and noticed that my exported PNG and JPG looks
washed out/desaturated a bit on Twitter.
My first reaction was that Twitter probably uses some crappy conversion to sRGB
and I just exported PNG with wide gammut profile attached to it.
I tried converting image to sRGB 8bit, but it already was in sRGB profile (the
one named Default) and 8bit.
Then I tried to use exporter options: "Embed sRGB profile" and "Force convert
to sRGB".
None of this worked, and the same problem is with JPG.
For now the only thing that works is either exporting to WebP for Twitter and
for the Instagram convert my PNG using this online tool
https://www.online-convert.com/.
I also tested it with GIMP and it had the same problem. My guess is that some
library that both program use is bundling my monitor ICC to the file even if I
manually convert, or force sRGB, and then social media detects it and do their
crappy conversion.
I attach my PNG JPG and WebP for tests. I also include screenshot how it
behaves on my setup. It's a twitter post creation window, on the left is WebP
export on the right PNG and JPG. You can see images on the right are a bit
desaturated.
Extra info. My other software like ImageGlass, Windows Image Viewer or even
Paint don't have this problem, only some web based software like Gumroad as
well.
SOFTWARE/OS VERSIONS
Krita
Version: 5.0.2-alpha (git ca4f0c8)
Installation type: installer / portable package
Languages: en_GB, en, en_US, en, en_GB, en, en_US, en, en_GB, en, en_US, en,
en_GB, en, en_US, en, en_GB, en, en_US, en
Hidpi: false
Qt
Version (compiled): 5.12.12
Version (loaded): 5.12.12
OS Information
Build ABI: x86_64-little_endian-llp64
Build CPU: x86_64
CPU: x86_64
Kernel Type: winnt
Kernel Version: 10.0.19043
Pretty Productname: Windows 10 (10.0)
Product Type: windows
Product Version: 10
ADDITIONAL INFORMATION
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