Spyke
jpegxl·JPEG XLbylarida

Lossless jxl fail

So I took a png and used cjxl v0.10.2 and --distance==0 --effort==9 to convert it to a jxl file. And the result has color inaccuracies.

I checked that both files use RGB. In the Black&White part of the images I cannot see any differences, it seems to really be something about colours o this specific image...

Any idea what I could have done wrong?

View original on lemmy.sdf.org
jpegxl·JPEG XLbyqdwang

JPEG XL Toolbox for iOS

Now the JPEG XL Toolbox is released on App Store.

The Pro in app purchase is FREE until Jan 20, 2024.

The Pro version only enables some tweaks for ProRAW decoding.

All the JPEG XL settings are available for FREE version.

Features:

  • ProRAW to JPEG XL
  • Batch conversion
  • Metadata keeping
  • Supports 4G RAM devices to convert 48 megapixels ProRAW
  • Lossless for JPEG input
  • Keeps HDR effect after the ProRAW to JXL conversion

Features in settings:

  • ProRAW parameters to adjust the decoding process
  • Modular mode
  • Progressive mode
  • Output colorspace
  • Decoding speed option
View original on lemmy.world
jpegxl·JPEG XLbychrysn

[@jpegxl](https://lemmy.world/c/jpegxl) Will [#jpegXL](https://chaos.social/tags/jpegXL) need additional metadata when used with HTML's srcset?

@jpegxl Will #jpegXL need additional metadata when used with HTML's srcset?
While the format's progressive rendering can do away with the need to have different files per resolution, browsers will instead need to know how much of the image they'll fetch. How would we pass that information to the browser?
Extra syntax in srcset, eg p.jxl, p.jxl \<2040 100w, p.jxl \<6974 200w to tell that for a 100px wide view the browser needs to load the first 2040 bytes? Fragment identifier tricks?

View original on chaos.social