7 ms·

Can AVIF display 10 bit HDR with larger color gamut that any modern phone nowadays is capable of capturing?

by jnd-cz 10mo ago

arccy 10mo ago
if you actually read your parent comment: "typical web image quality"
- ansgri 10mo ago
  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!
  - zozbot234 10mo ago
    PNG supports HDR with up to 16 bits per channel, see https://www.w3.org/TR/png-3/ https://www.w3.org/TR/png-3/ and the cICP, mDCV and cLLI chunks.
    - lonjil 10mo ago
      With incredibly bad compression ratios.
  - mort96 10mo ago
    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.
    - magicalhippo 10mo ago
      There's nothing stopping browsers from tone mapping[1] those HDR images using your tone mapping preference. [1]: https://en.wikipedia.org/wiki/Tone_mapping https://en.wikipedia.org/wiki/Tone_mapping
      - mort96 10mo ago
        What does that achieve? Isn't it simpler to just not support HDR than to support HDR but tone map away the HDR effect? Anyway, which web browsers have a setting to tone map HDR images such that they look like SDR images? (And why should "don't physically hurt my eyes" be an opt-in setting anyway instead of just the default?)
        spider-mario 10mo ago
        How about a user stylesheet that uses https://www.w3.org/TR/css-color-hdr-1/#the-dynamic-range-limit-property https://www.w3.org/TR/css-color-hdr-1/#the-dynamic-range-lim... ?
        mort96 10mo ago
        How about websites just straight up aren't allowed to physically hurt me, by default?
        spider-mario 10mo ago
        You asked “which web browsers have a setting to tone map HDR images such that they look like SDR images?”; I answered. Were you not actually looking for a solution?
        mort96 10mo ago
        I was looking for a setting, not a hack.
        NetMageSCW 10mo ago
        Web sites aren’t made for just you. If images from your screen are causing you issues, that is a you / your device problem, not a web site problem.
        mort96 10mo ago
CharlesW 10mo ago
> 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.

Can AVIF display 10 bit HDR with larger color gamut that any modern phone nowadays is capable of capturing?

by jnd-cz 10mo ago

Can AVIF display 10 bit HDR with larger color gamut that any modern phone nowadays is capable of capturing?

arccy 10mo ago

if you actually read your parent comment: "typical web image quality"

ansgri 10mo ago
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!
- zozbot234 10mo ago
  PNG supports HDR with up to 16 bits per channel, see https://www.w3.org/TR/png-3/ https://www.w3.org/TR/png-3/ and the cICP, mDCV and cLLI chunks.
  - lonjil 10mo ago
    With incredibly bad compression ratios.
- mort96 10mo ago
  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.
  - magicalhippo 10mo ago
    There's nothing stopping browsers from tone mapping[1] those HDR images using your tone mapping preference. [1]: https://en.wikipedia.org/wiki/Tone_mapping https://en.wikipedia.org/wiki/Tone_mapping
    - mort96 10mo ago
      What does that achieve? Isn't it simpler to just not support HDR than to support HDR but tone map away the HDR effect? Anyway, which web browsers have a setting to tone map HDR images such that they look like SDR images? (And why should "don't physically hurt my eyes" be an opt-in setting anyway instead of just the default?)
      - spider-mario 10mo ago
        How about a user stylesheet that uses https://www.w3.org/TR/css-color-hdr-1/#the-dynamic-range-limit-property https://www.w3.org/TR/css-color-hdr-1/#the-dynamic-range-lim... ?
        mort96 10mo ago
        How about websites just straight up aren't allowed to physically hurt me, by default?
        spider-mario 10mo ago
        You asked “which web browsers have a setting to tone map HDR images such that they look like SDR images?”; I answered. Were you not actually looking for a solution?
        mort96 10mo ago
        I was looking for a setting, not a hack.
        NetMageSCW 10mo ago
        Web sites aren’t made for just you. If images from your screen are causing you issues, that is a you / your device problem, not a web site problem.
        mort96 10mo ago

CharlesW 10mo ago

> 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.