Engineering:HDR10
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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 Technology 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. It doesn't offer the ability to optimize content to the consumer display's capabilities in a way based on the content creator's intent.[citation needed]
PQ10 refers to an HDR10 format which does not include any metadata.[3]
Technical details
HDR10 is defined as:[4]
- EOTF: SMPTE ST 2084 (PQ)
- Bit depth: 10 bit
- Color primaries: ITU-R BT.2020 (identical to BT.2100 primaries)
- Static metadata: SMPTE ST 2086 (mastering display color volume), MaxFALL (maximum frame-average light level), and MaxCLL (maximum content light level)
- Color sub-sampling: 4:2:0 (for compressed video sources)
PQ10 refers to an HDR format that uses PQ, 10-bit and Rec. 2100 color primaries without having any metadata.[3]
HDR10 is technically limited to a maximum of 10,000 nits peak brightness, however common HDR10 contents are mastered with peak brightness from 1,000 to 4,000 nits.[5]
HDR10 is not backwards compatible with SDR displays.
On HDR10 displays that have lower color volume than the HDR10 content (for example lower peak brightness capability), the HDR10 metadata gives information to help adjust the content.[6] However, the metadata is static (remain the same for the entire video) and does not tell how the content should be adjusted. Thus, the decision is up to the display and the creative intents might not be preserved.[7]
Competing formats to HDR10 are Dolby Vision and HDR10+ (which do provide dynamic metadata, allowing to preserve the creative intents on each display and on a scene by scene or frame by frame basis), and also HLG (which provides some degree of backward compatibility with SDR).[6]
Adoption
HDR10 is supported by a wide variety of companies, which include monitor and TV manufacturers such as Dell, LG, Samsung, Sharp, VU, Sony, and Vizio,[8][9] as well as Sony Interactive Entertainment, Microsoft and Apple which support HDR10 on their PlayStation 4, Xbox One video game console and Apple TV platforms, respectively.[10][11][12]
Hardware
- TV
- Audio-video interfaces
- Smartphones displays
- Smartphones camera
- Digital camera
- Mobile SoC
- Game consoles
Contents
- Ultra HD Blu-ray
- Streaming services
Software
- Media player
- Color grading
See also
References
- ↑ Rachel Cericola (27 August 2015). "What Makes a TV HDR-Compatible? The CEA Sets Guidelines". Big Picture Big Sound. http://www.bigpicturebigsound.com/What-Makes-a-TV-HDR-Compatible-The-CEA-Sets-Guidelines.shtml.
- ↑ "HDR TV: What it is and why your next TV should have it". Designtechnica Corporation. 19 December 2020. https://www.digitaltrends.com/home-theater/what-is-hdr-tv/.
- ↑ 3.0 3.1 Ultra HD Forum (19 October 2020). "Ultra HD Forum Guidelines v2.4". https://ultrahdforum.org/wp-content/uploads/UHD-Guidelines-V2.4-Fall2020-1.pdf.
- ↑ Consumer Technology Association (27 August 2015). "CEA Defines 'HDR Compatible' Displays". https://www.cta.tech/News/Press-Releases/2015/August/CEA-Defines-‘HDR-Compatible’-Displays.aspx.
- ↑ "HDR10 vs HDR10+ vs Dolby Vision: Which is better?" (in en-US). https://www.rtings.com/tv/learn/hdr10-vs-dolby-vision.
- ↑ 6.0 6.1 "Understanding HDR10 and Dolby Vision" (in en-US). https://www.gsmarena.com/understanding_hdr10_and_dolby_vision-news-46151.php.
- ↑ "ST 2086:2018 - SMPTE Standard - Mastering Display Color Volume Metadata Supporting High Luminance and Wide Color Gamut Images". St 2086:2018: 1–8. April 2018. doi:10.5594/SMPTE.ST2086.2018. ISBN 978-1-68303-139-0. https://ieeexplore.ieee.org/document/8353899.
- ↑ Adrienne Maxwell (2 May 2016). "Dolby Vision vs. HDR10: What You Need to Know". hometheaterreview.com. http://hometheaterreview.com/dolby-vision-vs-hdr10-what-you-need-to-know/.
- ↑ David Katzmaier (10 August 2016). "Vizio upgrades TVs to work with both HDR formats (hands-on)". CNET. http://www.cnet.com/news/vizio-upgrades-tvs-to-work-with-both-hdr-formats/.
- ↑ "Sony will wake a sleeping HDR beast via firmware. What else hides in PS4?". 8 September 2016. https://arstechnica.com/gaming/2016/09/whats-up-with-ps4s-surprise-firmware-update-is-4k-around-the-corner/.
- ↑ "Forza Horizon 3 uses the Xbox One S high dynamic range tech". 14 June 2016. http://www.eurogamer.net/articles/2016-06-14-forza-horizon-3-uses-the-xbox-one-s-high-dynamic-range-tech.
- ↑ "Apple TV 4K - Technical Specifications" (in en-US). https://www.apple.com/apple-tv-4k/specs/.
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