January 10, 2018 By admin
From Giant TV’S all the way down to your smartphone screen, The latest buzzword
in screens is a high dynamic range, Or HDR.
HDR feature – All you have to know about, How does it work and how can you use it to
improve your smartphone experience? How does it differ from the HDR feature you
might have spotted on your phone’s camera?
Here’s what you need to know about HDR video.
Smartphones and HDR
You might have come across the term HDR on your smartphone. Almost every phone above the
entry-level now how has and an HDR function built into the camera app. However this technology
is not exactly the same as HDR video, so these two technologies should not be confused.
HDR photography combines multiple photos at different exposures to produce a photo that features
more details in both light and dark areas. The HDR video is shot in much the same way, but it’s a bit trickier.
The big difference? Photos shot using HDR can be viewed on any screen, unlike HDR video, which
will only properly display on screens that are HDR-compatible.
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What is HDR video?
HDR videos can deliver a far greater range of contrast between light and dark areas of a video, and also
a far greater range of colors. The user experiences a richer and more dynamic video stream.
To watch videos in HDR, the video must be filmed and produced using HDR technology, and your
screen also needs to be able to display HDR content. How this actually works is that the video data
stream includes a string of instructions that tells your TV screen, at extremely high speed, how to adjust
itself for each video frame. Here you are reading HDR feature – All you have to know about.
So, as an analogy, if you watch a high-definition DVD on an old box TV, it only looks as good as the
grainy old screen can display. Likewise, if you watch an old videotape on the latest HD TV, it still looks
terrible. You need to have both HD source and HD display for things to look great. HDR has been a
feature on many high-end TVs for a few years already, but it’s also come to high-end smart-phone
screens in the past 18 months. Because this technology is still very immature, there exist many different
standards, and not all the phone makers support all the HDR standard. There are currently three main
HDR standards: Dolby Vision, HDR10, and UHD/HDR Premium. Samsung sticks to UHD/HDR Premium,
LG offers Dolby Vision and HDR10, Huawei uses HDR10, and Sony supports HDR10. And latecomer
Apple has opted for Dolby Vision in their latest iPhones.
This was the HDR feature – All you have to know about.