[Fixed] V1.0 (19) - JPEG XL compression - which effort is used? [Fixed]

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masterjp
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Joined: Fri Feb 13, 2009 4:37 pm
Location: Duesseldorf, Germany

[Fixed] V1.0 (19) - JPEG XL compression - which effort is used? [Fixed]

Post by masterjp »

I use XnView MP on Windows and there a many different compression settings for JPEG XL.
Do you have plans to add a slider for effort level = 0 to 9?

I did not often use the jpeg xl picture format on mobile or tablet,
because it costs much battery power for decoding and encoding.
That is the reason I prefer webp file format with a good balance of quality to filesize.

I am very suprised how fast jpeg xl files get compressed on mobile and tablet.

Which effort level is currently used?
Last edited by masterjp on Sun Jul 19, 2026 6:48 pm, edited 1 time in total.
PC: Intel 8700k + Asus Z370-F + 48 GB RAM Corsair+G.Skill + Asus RTX 3050 OC + Samsung SSD
OS: Windows 11 Pro 64bit 25H2 |
GFX: XnViewMP 1.11.5 | Adobe Photoshop Elements 2024 + Elements XXL 11 | Paint.Net 5.x
Android 12-16: Samsung S10, S23, TAB S7, S11
Kadet
Posts: 275
Joined: Thu Oct 20, 2022 7:23 pm

Re: V1.0 (19) - JPEG XL compression - which effort is used?

Post by Kadet »

My guess is 7. These few of my test conversions point to that. This is the default effort and seems very reasonable. On the phone, the conversion took about 1-2 seconds for typical photos. For the same photos on PC, setting effort 8 took 3-4 times longer.
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masterjp
Posts: 517
Joined: Fri Feb 13, 2009 4:37 pm
Location: Duesseldorf, Germany

Re: V1.0 (19) - JPEG XL compression - which effort is used?

Post by masterjp »

Thank you. It is a good value for speed/compression effeciency.
PC: Intel 8700k + Asus Z370-F + 48 GB RAM Corsair+G.Skill + Asus RTX 3050 OC + Samsung SSD
OS: Windows 11 Pro 64bit 25H2 |
GFX: XnViewMP 1.11.5 | Adobe Photoshop Elements 2024 + Elements XXL 11 | Paint.Net 5.x
Android 12-16: Samsung S10, S23, TAB S7, S11