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What is HDR, anyway?

(www.lux.camera)
789 points _kush | 3 comments | 14 May 25 12:46 UTC | HN request time: 0.997s | source
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shrx ◴[15 May 25 18:52 UTC] No.43998106[source]▶
Question to the author: Why are the images in the "Solution 2: Genuine HDR Displays" section actually videos? E.g.

    <video src="https://www.lux.camera/content/media/2025/03/new-york-skyline-hdr.mp4" poster="https://img.spacergif.org/v1/4032x3024/0a/spacer.png" width="4032" height="3024" loop="" autoplay="" muted="" playsinline="" preload="metadata" style="background: transparent url('https://www.lux.camera/content/media/2025/03/new-york-skyline-hdr_thumb.jpg') 50% 50% / cover no-repeat;"></video>
replies(1): >>43998141 #
1. Dylan16807 ◴[15 May 25 18:55 UTC] No.43998141[source]▶
Your question is answered in the article.

Look for the word video.

replies(1): >>43998185 #
2. shrx ◴[15 May 25 19:00 UTC] No.43998185[source]▶
Yes but I'm interested in the technical reasons.
replies(1): >>43999121 #
3. Dylan16807 ◴[15 May 25 20:40 UTC] No.43999121[source]▶
Safari doesn't support HDR images and there's no particularly good reason for it.