The attached was saved XYB Jpegli 4-4-4 progressive (XNView 1.9.5)
When a lossless crop is applied the colours are messed up. In non-XYB form this doesn't happen. Lossless rotations are fine.
So I think either the issue needs fixing or the lossless cropping of affected formats needs to be blocked (at least until fixed).
I notice there's a discussion of XYB colour space at viewtopic.php?t=48869 but I think that is unrelated to this issue
Cheers, David
jpegli XYB : lossless crop wrecks colour
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meteorquake
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jpegli XYB : lossless crop wrecks colour
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Re: jpegli XYB : lossless crop wrecks colour
You must use XYB encoding carefully because not all programs decode it correctly in jpeg's files. E.g. Browsers do it well, but converters in WordPress or Joomla do it incorrectly. I would hold off on using XYB for the next year or two.
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meteorquake
- Posts: 104
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Re: jpegli XYB : lossless crop wrecks colour
Thanks - yes I noticed the same thing! I'm wavering as to what is the best course.
I don't mind too much what other programs do so long as I have the tools myself, since my photos are used for botanical study and as I have rather a lot I need them to remain clear yet a minimum of size... that said I share them also... if I could tell the trajectory of things it would help, as it would be fine to XYB them now and then 2 years down the line XYB becomes normalised.
I don't mind too much what other programs do so long as I have the tools myself, since my photos are used for botanical study and as I have rather a lot I need them to remain clear yet a minimum of size... that said I share them also... if I could tell the trajectory of things it would help, as it would be fine to XYB them now and then 2 years down the line XYB becomes normalised.
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meteorquake
- Posts: 104
- Joined: Wed Sep 13, 2023 9:37 am
Re: jpegli XYB : lossless crop wrecks colour
1.9.6 now works for me