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Dolby Vision is a set of technologies developed by Dolby Laboratories for high dynamic range (HDR) video. [1] [2] [3] It covers content creation, distribution, and playback.[1] [4] [5] [6] It includes dynamic metadata that define the aspect ratio and adjust the picture based on a display's capabilities on a per-shot or even per-frame basis, optimizing the presentation.
For narrow range color, 10-bit per sample signals use video levels where the black level is defined as 64, achromatic gray level as 512 and the nominal peak as 940 in RGB, Y, and I encoding and 960 in Cb/Cr, and Ct/Cp component encoding. 12-bit per sample signals define 256 as the black level, 2048 as the gray level and the nominal peak is 3760 ...
Dolby Vision is an end-to-end ecosystem for HDR video, and covers content creation, distribution, and playback. [20] It uses dynamic metadata and is capable of representing luminance levels of up to 10,000 nits. [6] Dolby Vision certification requires displays for content creators to have a peak luminance of at least 1,000 nits. [8]
It was developed by Dolby [6] and standardized in 2014 by SMPTE [1] and also in 2016 by ITU in Rec. 2100. [7] [8] ITU specifies the use of PQ or HLG as transfer functions for HDR-TV. [7] PQ is the basis of HDR video formats (such as Dolby Vision, [2] [9] HDR10 [10] and HDR10+ [11]) and is also used for HDR still picture formats.
Original file (Ogg multiplexed audio/video file, Theora/Vorbis, length 44 s, 4,096 × 2,304 pixels, 1.48 Mbps overall, file size: 7.78 MB) This is a file from the Wikimedia Commons . Information from its description page there is shown below.
HDR10 Media Profile, more commonly known as HDR10, is an open high-dynamic-range video (HDR) standard announced on August 27, 2015, by the Consumer Electronics Association. [1] It is the most widespread HDR format. [2] HDR10 is not backward compatible with SDR. It includes HDR static metadata but not dynamic metadata.
Non-free video samples should use the licensing template {{Non-free video sample}}. Media in category "Video samples of films" The following 30 files are in this category, out of 30 total.
When HLG is displayed on a 2,000 cd/m 2 display with a bit depth of 10-bits per sample it can display a range of 200,000:1 or 17.6 stops without visible banding. [27] HLG increases the dynamic range of the video compared to a conventional gamma curve by using a logarithmic curve for the upper half of the signal values. [27]