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https://gregbenzphotography.com/hdr-gain-map-gallery/ https://gregbenzphotography.com/hdr-gain-map-gallery/ There you go, HDR photos that display correctly eve

https://gregbenzphotography.com/hdr-gain-map-gallery/ https://gregbenzphotography.com/hdr-gain-map-gallery/ There you go, HDR photos that display correctly everywhere. Bunch more information on this here https://gregbenzphotography.com/hdr-images/jpg-hdr-gain-maps-in-adobe-camera-raw/ https://gregbenzphotography.com/hdr-images/jpg-hdr-gain-maps... It's what Pixel now captures by default as well.

avensec 3y ago
Really appreciate this link. I used a LG C2 as my monitor and I've been having trouble with HDR content in W11/Chrome for years. I always end up using Edge or otherwise for Youtube HDR, and this helped me debug.
jiggawatts 3y ago
Doesn’t work on iPhones — the most common high quality HDR display people I know are likely to use. I can’t use this technique to publish my photos to them. I can use an Apple format to send HDR images to my friends and relatives with Apple devices. I can use some other Adobe or Google formats to send pictures to my friends with Android (=Google) phones. Etc… We don’t have any new widely adopted open standards any more in today’s FAANG era of mutually antagonistic fiefdoms. At best one of them muscles out the competing formats and that becomes a defacto standard. For everything else we’re stuck with pre-FAANG standards established at a time when companies were smaller, didn’t “own” the whole stack top to bottom, and were forced to cooperate. Google owns that hardware (Pixel), OS (Android), browser (Chrome), protocol (HTTP3, Brotli), codec (VP9, WEBM), and television itself (YouTube). There’s an identical stack for Apple. Why do you imagine it’ll ever be possible for Google user to send a full fidelity photo to an Apple user? They live on opposite sides of a new iron curtain. They’re not even permitted to text each other properly!
- c0balt 3y ago
  > Why do you imagine it’ll ever be possible for Google user to send a full fidelity photo to an Apple user? It's possible today. Apple may just not give you the ability to actually view the image though.
  - jiggawatts 3y ago
    Touché.
  - account42 3y ago
    They also prevent others from giving you that ability (at least as far as content on the web goes).
- whatevaa 3y ago
  Ask your beloved Apple, they are the ones who love their walled gardens.
- PaulHoule 3y ago
  I think Facebook, Apple and everybody else in VR agrees on GLTF as a model interchange format.
- kllrnohj 3y ago
  > I can use an Apple format to send HDR images to my friends and relatives with Apple devices. Switch your iPhone to use "high compatibility" or something like that and it'll spit out jpegs with hdr gainmaps that chrome and Android understand as well now. It's not the Adobe spec, but given Apple is now publicly talking about gainmaps ( https://developer.apple.com/documentation/appkit/images_and_pdf/applying_apple_hdr_effect_to_your_photos https://developer.apple.com/documentation/appkit/images_and_... ) and the Adobe spec is a superset of capabilities with a patent-free license and an ISO draft proposal it doesn't seem unimaginable that Apple will move it. But if Apple won't ever support it, that doesn't mean iPhones can't view it. You already can today with the latest version of Lightroom. And of course Chrome on MacOS already lets you view them. Apple's iOS browser monopoly is hurting you here, but that's very obviously an exclusively Apple created problem
  - amluto 3y ago
    Something is utterly busted about the spec and the patent system. Look at the Swift code for decoding the headroom! It stinks — maybe Apple tried a few different transfer functions or for size and didn’t bother to mark which version was in use? And now Apple is kindly offering to license the patent if this goes into an ISO standard? I’m sorry, but a system to decide old nonsensical formats should not require a license. Also… the gain map is subsampled 1:2. Surely this will cause annoying artifacts at sharp edges where one side is much brighter.
    - kllrnohj 3y ago
      > And now Apple is kindly offering to license the patent if this goes into an ISO standard? The one that's likely to go to an ISO standard is the Adobe spec here: https://helpx.adobe.com/camera-raw/using/gain-map.html https://helpx.adobe.com/camera-raw/using/gain-map.html (which is the same as Google's "UltraHDR") And that has a blanket public grant for usage. > Also… the gain map is subsampled 1:2. Subsampling is optional, you can do 1:1 if you want.
- anonomousename 3y ago
  From https://gregbenzphotography.com/hdr/#tests https://gregbenzphotography.com/hdr/#tests: “Note for Safari / iPhone users: The top image on this page (the building with the before/after slider) uses a workaround which shows an HDR video as if it were a photo. This will let you get a sense of the HDR benefit, but you will fail the tests below as Safari / WebKit (which means all iPhone/iPad browsers) only supports HDR video and not HDR photos at this time.” :-(

avensec 3y ago

Really appreciate this link. I used a LG C2 as my monitor and I've been having trouble with HDR content in W11/Chrome for years. I always end up using Edge or otherwise for Youtube HDR, and this helped me debug.

jiggawatts 3y ago

Doesn’t work on iPhones — the most common high quality HDR display people I know are likely to use. I can’t use this technique to publish my photos to them. I can use an Apple format to send HDR images to my friends and relatives with Apple devices. I can use some other Adobe or Google formats to send pictures to my friends with Android (=Google) phones. Etc… We don’t have any new widely adopted open standards any more in today’s FAANG era of mutually antagonistic fiefdoms. At best one of them muscles out the competing formats and that becomes a defacto standard. For everything else we’re stuck with pre-FAANG standards established at a time when companies were smaller, didn’t “own” the whole stack top to bottom, and were forced to cooperate. Google owns that hardware (Pixel), OS (Android), browser (Chrome), protocol (HTTP3, Brotli), codec (VP9, WEBM), and television itself (YouTube). There’s an identical stack for Apple. Why do you imagine it’ll ever be possible for Google user to send a full fidelity photo to an Apple user? They live on opposite sides of a new iron curtain. They’re not even permitted to text each other properly!

c0balt 3y ago
> Why do you imagine it’ll ever be possible for Google user to send a full fidelity photo to an Apple user? It's possible today. Apple may just not give you the ability to actually view the image though.
- jiggawatts 3y ago
  Touché.
- account42 3y ago
  They also prevent others from giving you that ability (at least as far as content on the web goes).
whatevaa 3y ago
Ask your beloved Apple, they are the ones who love their walled gardens.
PaulHoule 3y ago
I think Facebook, Apple and everybody else in VR agrees on GLTF as a model interchange format.
kllrnohj 3y ago
> I can use an Apple format to send HDR images to my friends and relatives with Apple devices. Switch your iPhone to use "high compatibility" or something like that and it'll spit out jpegs with hdr gainmaps that chrome and Android understand as well now. It's not the Adobe spec, but given Apple is now publicly talking about gainmaps ( https://developer.apple.com/documentation/appkit/images_and_pdf/applying_apple_hdr_effect_to_your_photos https://developer.apple.com/documentation/appkit/images_and_... ) and the Adobe spec is a superset of capabilities with a patent-free license and an ISO draft proposal it doesn't seem unimaginable that Apple will move it. But if Apple won't ever support it, that doesn't mean iPhones can't view it. You already can today with the latest version of Lightroom. And of course Chrome on MacOS already lets you view them. Apple's iOS browser monopoly is hurting you here, but that's very obviously an exclusively Apple created problem
- amluto 3y ago
  Something is utterly busted about the spec and the patent system. Look at the Swift code for decoding the headroom! It stinks — maybe Apple tried a few different transfer functions or for size and didn’t bother to mark which version was in use? And now Apple is kindly offering to license the patent if this goes into an ISO standard? I’m sorry, but a system to decide old nonsensical formats should not require a license. Also… the gain map is subsampled 1:2. Surely this will cause annoying artifacts at sharp edges where one side is much brighter.
  - kllrnohj 3y ago
    > And now Apple is kindly offering to license the patent if this goes into an ISO standard? The one that's likely to go to an ISO standard is the Adobe spec here: https://helpx.adobe.com/camera-raw/using/gain-map.html https://helpx.adobe.com/camera-raw/using/gain-map.html (which is the same as Google's "UltraHDR") And that has a blanket public grant for usage. > Also… the gain map is subsampled 1:2. Subsampling is optional, you can do 1:1 if you want.
anonomousename 3y ago
From https://gregbenzphotography.com/hdr/#tests https://gregbenzphotography.com/hdr/#tests: “Note for Safari / iPhone users: The top image on this page (the building with the before/after slider) uses a workaround which shows an HDR video as if it were a photo. This will let you get a sense of the HDR benefit, but you will fail the tests below as Safari / WebKit (which means all iPhone/iPad browsers) only supports HDR video and not HDR photos at this time.” :-(