I’m refering to this
I’ve also seen it happen to a single letter in that string

  • Still@programming.dev
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    1 year ago

    it’s for contrast, white text on light background is almost impossible to read same with dark on dark. Uses a per character or per pixel filter to determine the color of the text

        • dave@feddit.uk
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          1 year ago

          Plus it’s probably more complex to engineer multi-colour (well, two colour) font rendering onto the video. Getting the background brightness for each character is as simple as adding all the pixel rgb values together and threshold in. It doesn’t need to be very accurate.

        • 520@kbin.social
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          1 year ago

          Still pretty readable on a white background. The black outline sees to that.

  • _danny@lemmy.world
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    1 year ago

    No one gonna mention anything about how that dude is lucky to be alive? Holy shit I thought this was going to be a different kind of video.

  • FuglyDuck@lemmy.world
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    1 year ago

    Like others have said, for contrast.

    Though, they’re not exactly “permanent.” Depending on the encoding, they’re potentially pretty easy to remove. (If it’s encoded to meta data. It’s just a playback thing. You can turn this on for VHS movies, too,)

  • SKBo@lu.skbo.net
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    1 year ago

    It’s done to have a big contrast between the letter and its background, so you can read all the information all the time (except in edge cases, like the seconds in the video you show, the background is mostly 50-50 with black and white, so the text is kept in black, and can be a bit hard to read)