HDR was introduced alongside Ultra HD technology to enhance image clarity. Therefore, what is HDR and how does it influence resolution?
Brief History Behind HDR
Kindly note that the invention of HD was a great stride in the resolution world. Not before long, UHD and 4K UHD invention enhanced screens resolution to what we have today in Flat Screens and Monitors.
The transition from HD to UHD to 4K UHD was purely based on additional pixels on the screen. But wait, did more pixels meant proportional resolution. HDR came to demystify this question.
Instead of just additional pixels, HDR focused on having better pixels. Perhaps, the mix of two means better resolution, clear images, and a clear background. HDR, therefore, tries to reproduce your eye view on your TV.
How HDR Works?
HDR simply entails brightening whites and darkening black scenes of an image. The strike of balance between the two is what results in very sharp images on your TV screen.
Several manufacturers in the display industry have tried to incorporate HDR technology in their screens. The most popular currently are Dolby Vision and Blu-ray. You will, therefore, see these terms next time you are buying a TV or Monitor.
TV manufacturers have as well started incorporating HDR technology in their devices. However, technology might be named differently.
For instance, Samsung refers to a panel that enables HRD as “Peak illuminator and HRD-enabled Televisions as ‘SUHD.’ Dolby refers to HRD as Dolby Vision. Whereas Sony popularly refers to HRD as ‘X-tended Dynamic Range.
We take a picture by taking exposure to the object we are imaging. The quality of the exposure determines the quality of the image.
An image is formed by taking various points of the object under exposure. A combination of these points makes up the image.
A standard exposure will only take a few points of the object. Middle-quality exposure will take more points. A very high-quality exposure takes many points from the object. The more the points were taken during the exposure the sharper the image.
Exposure can be classified into three main categories namely under-exposure, normal exposure, or over-exposure.
HDR quality is influenced by how many points or details a screen is able to capture during exposure. The higher the HDR rating the more the details captured thus the sharper the image. There are various HDR qualities as explained below:
Types of HDR
- Dolby HDR
- Quantum HDR (QHDR)
Quantum HDR brings about excellent clarity by illuminating even the tiniest details of the scene. Bright points and colors appear brightest while black points or colors appear blackest. As a result, colors and objects appear almost real.