XnView Software

as title said,it just can't

Thanks to your detailed description I can reproduce the problem.

This problem is supposed to be fixed in XnView MP 1.3.1. Please check and confirm the bug fix here.

xnview 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.

the first one was solved,thanks to your excellent work
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/