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Klacee Sawatzky
High Dynamic Range (HDR) is the next generation of color clarity and realism in images and videos. Ideal for media that require high contrast or mix light and shadows, HDR preserves the clarity better than Standard Dynamic Range (SDR).
HDR is an imaging technique that captures, processes, and reproduces content in such a way that the detail of both the shadows and highlights of a scene are increased. While HDR was used in traditional photography in the past, it has recently made the jump to smartphones, TVs, monitors, and more.
So what does this mean for you? This means images have more overall detail, a wider range of colors, and look more similar to what is seen by the human eye when compared to SDR (Standard Dynamic Range) images.
In most images you will come in contact with there will be brighter parts and darker parts of the image that both contain displayable detail. When an image is overexposed, information in the brighter part of the image will be lost; likewise, when an image is underexposed information in the dark parts of the image will be lost.
HDR remedies this problem by calculating the amount of light in a given scene and using that information to preserve details within the image, even in scenes with large variations in brightness. This is done in an attempt to create more realistic-looking images.
SDR, or Standard Dynamic Range, is the current standard for video and cinema displays. Unfortunately, it is limited by its ability to only represent a fraction of the dynamic range that HDR is capable of. HDR, therefore, preserves details in scenes where the contrast ratio of the monitor could otherwise be a hindrance. SDR, on the other hand, lacks this aptitude.
To put it simply, when comparing HDR vs. SDR, HDR allows you to see more of the detail and color in scenes with a high dynamic range. Another difference between the two lies in their inherent measurement.
For those of you familiar with photography, dynamic range can be measured in stops, much like the aperture of a camera. This reflects adjustments made to the gamma and bit depth used in the image and will differ depending on whether HDR or SDR is in effect.
On a typical SDR display, for instance, images will have a dynamic range of about 6 stops. Conversely, HDR content is able to almost triple that dynamic range, with an average approximate total of 17.6 stops. Because of this, a dark scene may see dark grey tones becoming clipped to black, while in the bright scene some colors and detail in that part of the scene may become clipped to white.
HDR10 has established itself as the default standard for 4K UHD Blu-ray disks and has also been used by Sony and Microsoft in the PlayStation 4 and the Xbox One S. When it comes to computer screens, some monitors from the ViewSonic VP Professional Monitor Series come equipped with HDR10 support.
Currently, HDR is content is available in a number of ways. In terms of streaming, Netflix supports HDR on Windows 10 and Amazon Prime has jumped onto the HDR bandwagon as well. In terms of physical content, there are HDR Blue-ray disks and players available for purchase along with the built-in players on the Sony PlayStation 4 and the Microsoft Xbox One S gaming consoles.
In music, vinyl records became CDs, which then became mp3s in turn. In home videos, VHS became DVDs then Blue-Rays. In terms of televisual resolution, simply, 480i morphed into 720p and 1080i over time. The pattern here is clear.
In the case of the latter-most example, high definition televisions did not become available in the United States until 1998, and popular until five to eight years thereafter. Today, Full HD resolution is commonplace throughout the country, with 4K UHD acting as the new fringe option.
The current modern battle between HDR vs. SDR reflects the same trend. Although HDR has been commonplace in the photography world for some time, it is the new kid on the block in terms of television and monitors. Some have even gone so far as to argue that 1080p HDR looks better than 4K SDR!
While of course, nothing is ever 100% certain, HDR technology has fortune in its favor. Currently, its inherent technology is tied closely to that of ultra-high definition resolution, otherwise known as 4K.
Luckily for all of the early adopters out there, HDR products are not hard to come by. The benefits of HDR even extend into gaming by allowing you to see more detail in your games for a more realistic feel.
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