There is enough confusion between horizontal resolutions (2K, 4K etc.) and vertical ones (1080p, 2160p etc.). This is not helping; why even print a promotional sticker with a number of pixels smaller than what it should be?

  • Oisteink@lemmy.world
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    2 months ago

    This confusion is likely local and exists inside your head only. 1080p has been known as full hd since the early days of dvd.

    2k and 4k does not refer to horizontal resolution but the number of pixels. 1080p is 2k

    • oktoberpaard@feddit.nl
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      2 months ago

      But 2K and 4K do refer to the horizontal resolution. There’s more than one resolution that’s referred to as 2K, for example 2048 x 1080 DCI 2K, but also 1920 x 1080 full HD, since it’s also almost 2000 pixels wide. The total number of pixels is in the millions, not thousands.

      For 4K some common resolutions are 4096 x 2160 DCI 4K and 3840 x 2160 UHD, which both have a horizontal resolution of about 4000 pixels.

      • Oisteink@lemmy.world
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        2 months ago

        Yeah - like stated in the wiki article i linked. im not sure how I interpreted OP when reading the post again today. I didn’t notice the arrows part, and thats in the title.

    • ChaoticNeutralCzech@lemmy.mlOP
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      2 months ago

      I know the difference but there are lots of people who aren’t really savvy with video technology. I wouldn’t blame them for thinking that [🢐 1080 🢒] is just barely better than 1024x768.

      2k and 4k does not refer to horizontal resolution but the number of pixels

      Nope. 1920×1080 is 2 073 600 pixels, which would be 2M. “2K” is the horizontal resolution (1920) rounded up. A screen with literally 2K pixels would be around 50×40, lower than the crappiest handheld consoles.

      • Oisteink@lemmy.world
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        2 months ago

        Nah

        They won’t know about 1024x768, but if they did they would understand that 1080 is barely better.

        Going from 1024 to 1920 horizontal also takes the aspect ratio from 3:4 to 16:9. so pixel density is barely better.

        • ChaoticNeutralCzech@lemmy.mlOP
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          2 months ago

          https://www.xkcd.com/1889/

          If 2K referred to the number of pixels, it would look like this: Bliss 50×40=2000 This post 62×33=2046

          FullHD is actually a little over 2M pixels.

          takes the aspect ratio from 3:4 to 16:9. so pixel density is barely better

          What? Screen aspect ratio and pixel density are quite different things. Most FullHD TVs are widescreen and have pixel density below 36 ppi, and while high-DPI 4:3 screens are rare, they are not impossible in any way.

          • xigoi@lemmy.sdf.org
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            2 months ago

            The Explain XKCD for this comic is gold.

            However birds do not use GPS to navigate, [citation needed]