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The A. Life in General. By Whitson Gordon. Those standards vary, but all HDR displays are defined as having a higher dynamic range than SDR, as well as minimum bit color depth. Most top out at about nits. Greater visual impact than SDR.
More accurate colors, smoother light and color shading, and more detailed images. Color reproduction improves dramatically in HDR televisions. As a resolution, 4K does not affect color all that much, other than providing added definition.
This is why 4K and UHD often go hand in hand. These technologies complement the two most important aspects of picture quality—definition and color. As a technology, HDR expands the distance between white and black. This makes the contrast more intense without overexposing bright colors or underexposing dark colors.
When high dynamic range images are captured, the information is used in post-production to grade the content and obtain the widest possible contrast range. The images are graded to produce a wide color gamut, which makes for deeper, more saturated colors, as well as smoother shading, and more detailed images. Grading may be applied to each frame or scene, or as static reference points for an entire film or program.
When an HDR television detects HDR-encoded content, bright whites appear without blooming or washout, and deep blacks without muddiness or crushing.
In a word, the colors look more saturated. For example, in a sunset scene, you should see the bright light of the sun and the darker portions of the image with similar clarity, along with all the brightness levels in between. Check out the example below. The same is generally true of HDR. By some measures, there is less content available in HDR than there is in 4K, but that's beginning to change.
That includes home theater receivers , media streamers , Ultra HD Blu-ray players, and video projectors , as well as the original resolution of the content you're watching. You'll also need a high-speed HDMI cable. Some 4K devices upscale lower resolutions to 4K, but the conversion isn't always smooth. Pocket-lint - The TV industry never stands still, with new technologies appearing every year to improve TVs and convince you that now's the time to upgrade.
Joining this race is HDR, the latest technology that's among the acronym-laden features on new TVs - and it's a tech that's growing. That's continued through recent years, with HDR becoming more accessible across a full range of devices and services. HDR stands for high dynamic range. The abbreviation will be familiar because it's a term also used in photography, with HDR on some cameras and many smartphones: it's a feature on the iPhone , for example.
It's the same thing, because on televisions, just as in photography, the aim is to recreate an image that's closer to that seen by the human eye, or to better recreate the vision of the original storyteller. That often means balancing out light and dark areas or the range of colours, and not losing, for example, shadow detail because of a bright sky.
When it comes to TVs, this is handled in a couple of areas. The first is contrast, dealing specifically with the relationship between light and dark, and colour, with HDR offering a wider range of colours, particularly in challenging situations like sunsets. The results delivered by HDR should mean more sumptuous colours, bringing more realism and depth, and added "pop". HDR aims to be a visual treat, which it very much is. That results in fidelity in the darkness, as well as that very bright point of light, with both being rendered with lots of detail and colour.
The "original storyteller" aspect is also important, as HDR is very much being pitched as bringing the director's vision to your TV, much like Hi-Res music claims to be bringing the artist to your ears. In the case of HDR, this could extend beyond the realistic into more radically styled visuals.
In previous standards, including those used on Blu-ray, it just wasn't possible to achieve the same results. HDR uses panel technology deliver this wider colour range and contrast, and it's very much about brightness and illumination.
To view HDR content, you need to have a display that's compatible with HDR, it's as simple as that - and for many that will be a television, although in recent years laptops, tablets and phones have all offered HDR too.
HDR-capable sets are suped-up televisions. Many HDR sets have a backlight system that can output about 1, nits peak brightness or greater, whereas standard TVs typically only output nits, which is the level that Blu-ray and standard TV content is specified to.
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