MacOS Sonoma 14.5 HDR support? AVIF and JXL tonemapping not working

[Elix]

Hi. I know there have been some topics already but they all indicate that HDR should be working in XNView MP. I use current version 1.7.2 running on MacBook Pro M1 16" with XDR (HDR) profile and with ICC management enabled (set to system profile) I see that JXL and AVIF files work incorrectly. The images are either too flat or dark, tonemapping doesn't work. These same photos all display correctly in Photo or Viewer app. Please advise.

https://dropmefiles.com/NR2Hz

[xnview]

which color profile do you use in XnView? Could you send a sample file

[Elix]

which color profile do you use in XnView? Could you send a sample file

Sample files are in my first post, see the dl link. Display profile is Apple XDR Display (P3-1600 nits).

[Elix]

I just wanted to correct myself, only Photo app works correctly for HDR images so far. Viewer app looks incorrect compared to Adobe Camera RAW.

[Elix]

Is this not a priority feature? There are basically no viewers availabie which support tonemapping and HDR gain maps. You could be the first, guys! The best image viewer can get even better

[xnview]

your link doesn't work anymore...

[Elix]

your link doesn't work anymore...

It's because 2 weeks have passed... Here's a reupload.
https://tinyurl.com/4vfr2evx

How to know it doesn't work - sky will be blown-out. If HDR is working correctly sky shouldn't be blown-out.

[Elix]

I created this topic 1 month ago and still haven't received a single meaningful anwer

[xnview]

sorry but i'll check when possible...

[MaykThewessen]

XnViewMP doesn't display .AVIF photo's correctly that i exported in HDR Rec.2020 color 1000nits from Adobe Lightroom

How to solve? Will there come an update?

Currently on MacOS 15.0 Sequia, these photos are also wrongly displayed by 'Apple Preview' and Safari
only correctly displayed by Google Chrome, and iPhone

Edit: Apple Preview does show it correctly

What Color Management to set in XnView? To show these HDR photo correctly?

[martinimal]

Is this not a priority feature? There are basically no viewers availabie which support tonemapping and HDR gain maps. You could be the first, guys! The best image viewer can get even better

Bingo.

There is a Demo App from Adobe which is really nice as a viewer but it's doesn't allow much else besides showing. Visualization of HDR in XnView would be amazing.

Google provides a library for the concept of (Gain Map) HDR. It also contains APIs for decoding:
https://github.com/google/libultrahdr

There are two ISO Standards about HDR encoding in still images:
- ISO/CD 21496-1 for Gain Map HDR
- ISO/TS 22028-5:2023 for 10bit (HEIF, AVIF, JXL, PNG) with HLG or PQ curve

Martin

[martinimal]

XnViewMP doesn't display .AVIF photo's correctly that i exported in HDR Rec.2020 color 1000nits from Adobe Lightroom

How to solve? Will there come an update?

Currently on MacOS 15.0 Sequia, these photos are also wrongly displayed by 'Apple Preview' and Safari
only correctly displayed by Google Chrome, and iPhone

What Color Management to set in XnView? To show these HDR photo correctly?

To show it correctly, XnView would need to send 10bit HDR data to the GPU/display. Which is not yet possible AFAIK. Also the display/OS would need to know that it receives HDR data.