Gadgetory

hello there - Carrie Sims from Andrew authority now if you like me when you hear the word HDR you think about that special mode in your camera that allows you to take better photos brings out the colors more vividly finds the details in the shadows well actually HDR is not only for capturing images also for displaying images so the question before today is what is a HDR display and how does it work well let me explain so HDR stands for high dynamic range and the idea is that it gives you a display that gives you more vibrant colors greater brightness greater contrast and therefore just a better picture on your smartphone now there are different competing expanders different competing ideas about exactly what HDR means and whether a display qualifies to be called a HDR display but really there are three important ingredients the first is the brightness the display has to be able to offer a high level of brightness and the reason for that is because actually it wants to have a good level of contrast now contrast is a difference between the brightest pixel on the screen and the darkest pixels on the screen those things are brighter you can get the screen and the black you can get the black and the greater the contrast now brightness and contrast together give that kind of sharpness that you want to a display now once you have a bright display we could contrast the next thing you need is some vivid colors now colors are just made on our smartphone displayed using a combination red green and blue RGB and each of those colors has aged between the Blues are given eight fifths of information but 256 types of red 256 types of green and 256 types of glue and then when you combine them together you get an overall of just over 16 million colors now the human eye can see more than 16 million colors so the HDR is recommending the use of a new color space called REC 2020 now in rec 2020 defines an area but taking about 76% of the visible spectrum now to get that level of color we need to move beyond 8-bit encoding of the colors into 10 bit or into 12 bits now when you intend bit encoding of color there are now a thousand types of red a thousand types of green and a thousand type or blue and combined together you get over a billion different types of color now to get the most from a HDR display you need to watch HDR content now if a movie or a TV series you're watching is actually encoded using 8-bit color channels then you can't invent those extra two bits to give you that extra color you can't create something from nothing so to actually have full HD are you need to watch a media that actually been recording and encoded in 10-bit color or even in twelve bit color now some video formats don't support 10-bit color channel so mpeg-2 and the format that's used on blu-ray don't support 10-bit color but some of the newer codecs like h.265 and there are some profiles for h.264 which means you can have 10 bit color as media and so if you've got 10-bit color media you've got the brightness and you've got the contrast then you can truly say you are watching HDR content on your HDR display let's go in from android 40 I hope you enjoyed this video if you did please do give it a thumbs up a quick shout out to my colleague Robert Riggs who wrote the HDR article that you'll find along with this video over at the anvil authority comm website please don't forget to subscribe to and royal authority YouTube channel hit that Bell icon turn you get a notification every time we publish a new video and last but not least do go over to Andrew authority calm because we are your source for all things Android