Comment by jnd-cz
3 months ago
Can AVIF display 10 bit HDR with larger color gamut that any modern phone nowadays is capable of capturing?
3 months ago
Can AVIF display 10 bit HDR with larger color gamut that any modern phone nowadays is capable of capturing?
> Can AVIF display 10 bit HDR with larger color gamut that any modern phone nowadays is capable of capturing?
Sure, 12-bit too, with HDR transfer functions (PQ and HLG), wide-gamut primaries (BT.2020, P3, etc.), and high-dynamic-range metadata (ITU/CTA mastering metadata, content light level metadata).
JPEG XL matches or exceeds these capabilities on paper, but not in practice. The reality is that the world is going to support the JPEG XL capabilities that Apple supports, and probably not much more.
if you actually read your parent comment: "typical web image quality"
Typical web image quality is like it is partly because of lack of support. It’s literally more difficult to show a static HDR photo than a whole video!
PNG supports HDR with up to 16 bits per channel, see https://www.w3.org/TR/png-3/ and the cICP, mDCV and cLLI chunks.
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HDR should not be "typical web" anything. It's insane that websites are allowed to override my system brightness setting through HDR media. There's so much stuff out there that literally hurts my eyes if I've set my brightness such that pure white (SDR FFFFFF) is a comfortable light level.
I want JXL in web browsers, but without HDR support.
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