Can’t view jxl\avif file in archive browsing and NO jpeg-lossless mode in jxl
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Can’t view jxl\avif file in archive browsing and NO jpeg-lossless mode in jxl
as title said,it just can't
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- Author of XnView
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Re: Can’t view jxl\avif file in archive browsing and NO jpeg-lossless mode in jxl
Thanks to your detailed description I can reproduce the problem.
Pierre.
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- Author of XnView
- Posts: 44926
- Joined: Mon Oct 13, 2003 7:31 am
- Location: France
Re: Can’t view jxl\avif file in archive browsing and NO jpeg-lossless mode in jxl
This problem is supposed to be fixed in XnView MP 1.3.1. Please check and confirm the bug fix here.
Pierre.
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- Posts: 2
- Joined: Thu Sep 22, 2022 1:23 am
Re: Can’t view jxl\avif file in archive browsing and NO jpeg-lossless mode in jxl
the first one was solved,thanks to your excellent workxnview wrote: ↑Thu Oct 13, 2022 2:29 pm This problem is supposed to be fixed in XnView MP 1.3.1. Please check and confirm the bug fix here.
still,the second isn't change,maybe i didn't elaborate enough,when jpg convert to jpegxl(JXL),here is a special features for it called "Lossless JPEG transcoding"
https://cloudinary.com/blog/legacy_and_ ... mage_codec
and when it work,jpg to jxl losslessly can be about 20% smaller,and it is default in libjxl(https://github.com/libjxl/libjxl/releases),but this features can't work
in libjxl.it said:
"-d maxError, --distance=maxError
Max. butteraugli distance, lower = higher quality. Range: 0 .. 25.
0.0 = mathematically lossless. Default for already-lossy input (JPEG/GIF).
1.0 = visually lossless. Default for other input.
Recommended range: 0.5 .. 3.0.
-q QUALITY, --quality=QUALITY
Quality setting (is remapped to --distance). Range: -inf .. 100.
100 = mathematically lossless. Default for already-lossy input (JPEG/GIF).
Positive quality values roughly match libjpeg quality."
so i dont sure in your code when i used the lossless mode,which command parameters is used to convert,but when i try to convert a jpg file to jxl,it become very big,far way from the origin file,i guess it's a visually lossless convert?
hope to make sure it and can be adjusting these parameters
here is a good samle:https://jpegxl.io/