Experts argue that Dolby Vision makes for a better TV watching experience. TV marketing will endlessly mention high dynamic range, but few people understand what it actually means. Dolby Vision is a form of advanced High dynamic range (HDR) that lets your television adjust brightness and contrast levels as the screen transitions from one scene to the next. Viewers experience better image quality when adjusting brightness and contrast to suit their tastes. The Dolby Vision uses dynamic metadata to decide which brightness contrast ratio is best for the audience.
What Exactly is HDR?
The first innovations in HDR were made as early as the mid-1800s. Jean Baptiste Le Gray was a photographer who introduced the idea of HDR. He created the concept of tone mapping, which is used by photographers today. The concept aids artists in reducing shadows, brightening colors, and managing contrast on objects in an image. Today, videographers use tone mapping skills to manage and improve the sharp contrast between bright and dark areas on a screen. Tone mapping allows your screen to give you the best dark scenes that aren’t too dark and vivid bright scenes that do not blow out the brightness. The best part is tone mapping does not have to affect the overall contrast on your screen.
Which HDR Standards Should be Used?
Most modern TVs have distinctive display capabilities. A television can drastically improve display quality when well-matched with the correct HDR standards. The only problem is that not everyone can arrive at a consensus on which HDR standard is best for viewers. Because of the lack of a unified approach, filmmakers have been forced to instruct studios to create one standard throughout one film. The results are moderate because the studio is forced to adopt scenes that match their HDR standard but more could be achieved if algorithms were created to alter HDR using AI.
How Dolby Vision and HDR work Together
Thanks to improving technology, studios have found a way around using a single HDR standard on an entire film. They have discovered the use of dynamic metadata, which instructs your TV on how to adjust brightness and contrast for different scenes in a film. Currently, only Dolby Vision and HDR10+ allow for the use of dynamic metadata. The two are much better at improving screen quality than HDR10.
Key HDR features
- Color Volume
Color volume refers to how many colors a screen can actually display. It is also called color Gamut or color space. TVs capable of high HDR performance can display more colors. Most commercial studios use the DCI-P3 color space to master big-budget films.
- Local Dimming
As the name suggests, local dimming involves turning down the brightness on specified screen parts while others remain at an average level. True Dolby Vision is defined by accurate local dimming. No screen can use dynamic metadata without the ability to actualize local diming.
- Peak Brightness
Most TV screens have limited maximum brightness. Peak brightness is essential for optimum HDR performance. Older models will have a hard time keeping up with HDR high brightness requirements.
Dolby vision functions like the air-conditioning in any room. Without it, being inside would feel very uncomfortable. Using Dolby’s vision definitely takes the viewing experience to the next level. Modern screens will have an easier time implementing dynamic metadata compared to aged TVs.