Barely has the 4K TV settled down, you see the advent of a new technology HDR. This has virtually redefined the way you watch TV. What exactly is HDR and what benefits does it give to the viewer. Let us explore this aspect of technology now.
What is HDR?
In very simple terms HDR means High Dynamic Range. This is not what you are looking for aren’t you?
HDR technology is as close to human eyesight as possible. Have a look at the blue sky on a sunny day. How do the clouds look? You are able to distinguish between the different layers of white clouds as you enjoy the scenery.
Now, look at the same scene on a 4K TV screen. Of course, you will be able to look at the blue sky as well as the white clouds. But, it would be difficult to distinguish between the layers of the clouds. Thus you see that technology for all its brilliance is still inferior to the human eye. HDR proposes to change this concept.
HDR technology is actually a borrowed term from photography. This technique highlights the differences and contrasts between the brightest of whites and the darkest of blacks.
Where can you expect to get the best out of HDR?
The logic is that higher the dynamic range, the closer it gets to real life. The TVs of today for all the technical brilliance have a limited dynamic range. Hence, you miss out on various aspects of the image.
You can see this difference clearly in live telecasts of outdoor events, especially the sporting events. You will be able to see that the difference when the TV shows images in bright sunlight or in the dark shadows. You certainly miss out on certain specific details in the normal televisions.
Different types of HDR
Today, you have five different types of HDR namely, HDR10, HDR10+, HLG, Dolby Vision, and Advanced HDR. The most common form of HDR in use today is HDR10. Amazon, Netflix, and Blu Ray Disc Association (BDA) have adopted this technology for their services.
How is Dolby Vision different from HDR10?
Dolby Vision is a combination of HDR Video and Dolby Atmos sound. The principal difference between Dolby Vision and HDR10 is that the former allows the addition of dynamic metadata on the fly whereas HDR10 establishes its parameters at the start and sticks to the same throughout the film. Hence, Dolby Vision is more adaptive as compared to HDR10. Hence, it is able to deliver a superior viewing experience. You can read the Cnet’s guide HDR10 vs Dolby Vision.
This is not the end of technology. Today, you have HDR as the pinnacle. Tomorrow, you will have something else.
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