this post was submitted on 10 Apr 2024
373 points (95.6% liked)

linuxmemes

21304 readers
1180 users here now

Hint: :q!

Sister communities:

Community rules (click to expand)

1. Follow the site-wide rules

2. Be civil
  • Understand the difference between a joke and an insult.
  • Do not harrass or attack members of the community for any reason.
  • Leave remarks of "peasantry" to the PCMR community. If you dislike an OS/service/application, attack the thing you dislike, not the individuals who use it. Some people may not have a choice.
  • Bigotry will not be tolerated.
  • These rules are somewhat loosened when the subject is a public figure. Still, do not attack their person or incite harrassment.
    • 3. Post Linux-related content
  • Including Unix and BSD.
  • Non-Linux content is acceptable as long as it makes a reference to Linux. For example, the poorly made mockery of sudo in Windows.
  • No porn. Even if you watch it on a Linux machine.
    • 4. No recent reposts
  • Everybody uses Arch btw, can't quit Vim, and wants to interject for a moment. You can stop now.
    •  

    Please report posts and comments that break these rules!

    Important: never execute code or follow advice that you don't understand or can't verify, especially here. The word of the day is credibility. This is a meme community -- even the most helpful comments might just be shitposts that can damage your system. Be aware, be smart, don't fork-bomb your computer.

    founded 1 year ago
    MODERATORS
    poopsmith@lemmy.world
    zephyr@lemmy.world
    rtxn@lemmy.world
    373
    I know how to buy xorg users (lemmy.world)
    submitted 7 months ago by Waffelson@lemmy.world to c/linuxmemes@lemmy.world
    121 comments fedilink hide all child comments
     
    you are viewing a single comment's thread
    view the rest of the comments
    [–] onlinepersona@programming.dev 5 points 7 months ago (1 children)

    Thank you.

    I assume HDR has to be explicitly encoded into images (and moving images) then to have true HDR, otherwise it's just upsampled? If that's the case, I'm also assuming most media out there is not encoded with HDR, and further if that's correct, does it really make a difference? I'm assuming upsampling means inferring new values and probably using gaussian, dithering, or some other method.

    Somewhat related, my current screens support 4k, but when watching a 4k video at 60fps side by side on a screen at 4k resolution and another 1080p resolution, no difference could be seen. It wouldn't surprise me if that were the same with HDR, but I might be wrong.

    Anti Commercial AI thingyCC BY-NC-SA 4.0

    Inserted with a keystroke running this script on linux with X11

    #!/usr/bin/env nix-shell
#!nix-shell -i bash --packages xautomation xclip

sleep 0.2
(echo '
    spoiler Anti Commercial AI thingy [CC BY-NC-SA 4.0](https://creativecommons.org/licenses/by-nc-sa/4.0/) Inserted with a keystroke running this script on linux with X11 ```bash' cat "$0" echo '``` :::') | xclip -selection clipboard xte "keydown Control_L" "key V" "keyup Control_L"

    :::

    [–] eager_eagle@lemmy.world 5 points 7 months ago (1 children)

    yes, from the capture (camera) all the way to distribution the content has to preserve the HDR bit depth. Some content on YouTube is in HDR (that is noted in the quality settings along with 1080p, etc), but the option only shows if both the content is HDR and the device playing it has HDR capabilities.

    Regarding streaming, there is already a lot of HDR content out there, especially newer shows. But stupid DRM has always pushed us to alternative sources when it comes to playback quality on Linux anyway.

    no difference could be seen

    If you're not seeing difference of 4K and 1080p though, even up close, maybe your media isn't really 4k. I find the difference to be quite noticeable.

    [–] onlinepersona@programming.dev 1 points 7 months ago* (last edited 7 months ago) (1 children)

    yes, from the capture (camera) all the way to distribution the content has to preserve the HDR bit depth.

    Ah, that's what I thought. Thanks.

    If you’re not seeing difference of 4K and 1080p though, even up close, maybe your media isn’t really 4k. I find the difference to be quite noticeable.

    I tried with the most known test video Big Buck Bunny. Their website is now down and the internet archive has it, but I did the test back when it was up. Also found a few 4k videos on youtube and elsewhere. Maybe me and the people I tested it with aren't sensitive to 4k video on 30-35 inch screens.

    Anti Commercial AI thingyCC BY-NC-SA 4.0

    Inserted with a keystroke running this script on linux with X11

    #!/usr/bin/env nix-shell
#!nix-shell -i bash --packages xautomation xclip

sleep 0.2
(echo '
    spoiler Anti Commercial AI thingy [CC BY-NC-SA 4.0](https://creativecommons.org/licenses/by-nc-sa/4.0/) Inserted with a keystroke running this script on linux with X11 ```bash' cat "$0" echo '``` :::') | xclip -selection clipboard xte "keydown Control_L" "key V" "keyup Control_L"

    :::

    [–] accideath@lemmy.world 1 points 7 months ago (1 children)

    aren‘t sensitive to 4K video

    So you’re saying you need glasses?

    But yes, it does make a difference how much of your field of view is covered. If it’s a small screen and you’re relatively far away, 4K isn’t doing anything. And of course, you need a 4K capable screen in the first place, which is still not a given gor PC monitors, precisely due to their size. For a 21" desktop monitor, it’s simply not necessary. Although I‘d argue, less than 4K on a 32" screen, that’s like an arms length away from you (like on a desktop), is noticeably low res.

    [–] onlinepersona@programming.dev 0 points 7 months ago (1 children)

    So you’re saying you need glasses?

    No. Just like some people aren't sensitive to 3D movies, we aren't sensitive to 4k 🤷

    Anti Commercial AI thingyCC BY-NC-SA 4.0

    Inserted with a keystroke running this script on linux with X11

    #!/usr/bin/env nix-shell
#!nix-shell -i bash --packages xautomation xclip

sleep 0.2
(echo '
    spoiler Anti Commercial AI thingy [CC BY-NC-SA 4.0](https://creativecommons.org/licenses/by-nc-sa/4.0/) Inserted with a keystroke running this script on linux with X11 ```bash' cat "$0" echo '``` :::') | xclip -selection clipboard xte "keydown Control_L" "key V" "keyup Control_L"

    :::

    [–] accideath@lemmy.world 3 points 7 months ago

    People aren’t "sensitive" to 3D movies due to lack of stereoscopic vision (That’s typical for people who were cross-eyed from birth for example, even if they had corrective surgery). Or they can see them and don’t care or don’t like the effect.

    If you’re not "sensitive" to 4K, that would suggest you‘re not capable of perceiving fine details and thus you do not have 20/20 vision. Given of course, you were looking at 4K content on a 4K screen in a size and distance, where the human eye should generally be capable of distinguishing those details.