1. Phan Mem 2+2 Lop 4
  2. Ifoto Hdr 2 2019

HDR10+[1] is a High Dynamic Range (HDR) video technology that adds dynamic metadata[2] to HDR10 source files. HDR10+ signals the dynamic range and scene characteristics on a scene-by-scene or even frame-by-frame basis. The display device then uses the dynamic metadata to apply an appropriate tone map through the process of dynamic tone mapping.[3] Dynamic tone mapping differs from static tone mapping by applying a different tone curve from scene-to-scene rather than use a single tone curve for an entire video.[4] HDR10+ is the default variant of dynamic metadata as part of the HDMI 2.1 standard (in Amendment 1 of it).

Dec 10, 2016 The automatic HDR sequences to align photos, both taken by handhold or tripod. The Ghost suppression features make a fine result with moving stuff or people. Even the newbie of HDR photographer can master the HDR skill with the super easy user interface of iFoto HDR. There are multiple methods to save or share the HDR files. HDR10+ technology can support the full range of HDR standards to 10,000 cd/m 2, 8K and BT.2020 color gamut. Being resolution agnostic, metadata needs to be created only once and can be applied to any target resolution. HDMI 2.1 enables Dynamic HDR, but it also needs to be present in the content to work. Dolby Vision and HDR10+ already use dynamic metadata and can pass over a existing HDMI connections. The new logiCAM-FPD3-AR023 video camera features a 2.3 MP AR0231 RCCB video sensor from ON Semiconductor, a small Xilinx Artix FPGA with an integrated Xylon logicBRICKS HDR ISP video pipeline, and TI's FPD-Link III compatible serial interface in a small, only a cubic inch big housing. Experience impressive picture quality with the Sony X85F large screen 4K Android LED/LCD TV, featuring the 4K HDR Processor X1 & 4K X-Reality Pro. Enjoy ultra clear pictures with real world colors on this 4K Android TV featuring the 4K HDR Processor X1 and TRILUMINOS™ Display.

Workflow and ecosystem[edit]

HDR10+ Distribution Ecosystem

HDR10+ utilizes an HDR10 master file within existing HDR post-production and distribution workflows.

The HDR10+ ecosystem is used within current systems by,

  • storing HDR10+ metadata in JSON files
  • embedding HDR10+ metadata into HDR10 encoded content
  • distribution through digital stream (e.g. streaming with HDR10+ SEI[5])
  • displaying HDR10+ content on a capable display (e.g. HDMI interfaces with HDR10+ VSIF) and mobile devices [6]

Metadata generation[edit]

HDR10+ Metadata Workflow
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For offline and Video-On-Demand (VOD) (e.g. Ultra-High Definition Blu-ray, Over-The-Top (OTT), Multi-Channel Video Programming Distributor (MVPD)), HDR10+ Metadata may be created during the post-production, mastering process or during transcoding/encoding for distribution back-ends by HDR10+ content generation tools in two steps,

  1. Identifying scene cuts, and
  2. Performing an image analysis on each scene or frame to derive statistics

HDR10+ metadata is interchanged through a low complexity JSON-structured text file,[7] which is then parsed and injected into video files.

Live encoding[edit]

HDR10+ Live Encoder Workflow

Live use cases are possible by delivering HDR10+ metadata in every frame. HEVC encoders generate and inject metadata on live content and mobile phones record video and create HDR10+[8] metadata in real-time during recording. Live encoding is detailed in the Live Encoder Workflow diagram and real time broadcast operations are supported at the point of transmission enabling a metadata-less broadcast operation.

Compatibility[edit]

HDR10+ Backward Compatibility

HDR10+ metadata follows ITU-T T.35 and can co-exist with other HDR metadata such as HDR10 static metadata that makes HDR10+ content backward compatible[9] with non-HDR10+ TVs. HDR10+ metadata is ignored by devices that do not support the format and video is played back in HDR10.

HDR10+ content profile[edit]

  • EOTF: SMPTE ST 2084 (PQ)
  • Chroma Sub-sampling: 4:2:0 (for compressed video sources)
  • Resolution: Agnostic (2K/4K/8K,[10] etc.)
  • Bit Depth: 10-bit or more (up to 16-bit)
  • Color Primaries: ITU-R BT.2020
  • Maximum linearized pixel value: 10,000 cd/m2 for each color R/G/B (content)
  • Metadata (Required): Mastering Display Color Volume Metadata[11]
  • Metadata (Optional): MaxCLL, MaxFALL[12]

HDR10+ technology can support the full range of HDR standards to 10,000 cd/m2, 8K and BT.2020 color gamut. Being resolution agnostic, metadata needs to be created only once and can be applied to any target resolution.

HDR10+ is applicable for HEVC and VP9 compatibility via WebM[13] as well as any codec that supports ITU-T T.35 metadata.

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Administration[edit]

Ifoto Hdr 2 2019

HDR10+ Logo

HDR10+ Technologies, LLC[14] administers the license and certification program for products that want to adopt HDR10+. HDR10+ Technologies, LLC provides the technical specifications, test specifications, and certified logo.

Founders[edit]

Authorized Test Centers[edit]

Certification of products is done through Authorized Test Centers. The following are a list of HDR10+ Authorized Test Centers,

  • Allion - Japan
  • BluFocus - United States
  • TTA - Korea
  • TIRT - China

Adopters[16][edit]

  • Parade Technologies, Inc.
  • Arcelik
  • Turbine Medien GmbH
  • Guangdong Oppo Mobile
  • Audio Partnership PLC
  • Rakuten TV
  • Unigraf Oy
  • Beijing Xiaomi Mobile Software
  • Inventory Films
  • Realme Chongqing Mobile
  • US Screen Corp
  • Blackshark Technologies
  • VeriSilicon, Inc
  • Capella Systems
  • Vicom
  • MegaChips Technology America
  • Vivo Mobile Communications
  • Socionext, Inc.
  • Enteractive GmbH
  • T1 Technologies

HDR10+ certified products[edit]

Certified product[17] categories include:

  • Ultra-High Definition displays
  • Ultra-High Definition Blu-ray disc players
  • Systems-on-chip (SoC)
  • Set-top boxes
  • A/V Receivers
  • Streaming applications
  • Mobile devices

References[edit]

  1. ^'What is HDR10+? What you need to know'. Trusted Reviews. 2019-05-21. Archived from the original on 2019-06-09. Retrieved 2019-09-16.
  2. ^'Understanding Dynamic Metadata'. Creative Planet Network. 2016-11-30. Archived from the original on 2020-08-08. Retrieved 2019-09-16.
  3. ^Werner, Ken (2017-02-16). 'Two Keys to Optimal HDR TVs: Dynamic HDR Metadata and Tone Mapping'. DisplayDaily. Archived from the original on 2021-01-25. Retrieved 2019-09-16.
  4. ^'What is 4K HDR Dynamic Metadata?'. AVForums. Retrieved 2019-11-19.
  5. ^'SEI messages MPEG'. mpeg.chiariglione.org. Archived from the original on 2019-09-05. Retrieved 2019-09-05.
  6. ^Katzmaier, David. 'Galaxy S10 screen deep dive: Dynamic AMOLED, HDR10+, explained'. CNET. Archived from the original on 2019-02-26. Retrieved 2019-09-16.
  7. ^'Transkoder 2018: User Guide'. www.colorfront.com. Retrieved 2019-11-19.
  8. ^HDR10+ Video Recording on Your Galaxy S10, archived from the original on 2020-09-01, retrieved 2019-09-16
  9. ^'Are You Ready for Your HDR Delivery?'. Studio Daily. 2018-12-19. Archived from the original on 2019-10-29. Retrieved 2019-11-19.
  10. ^'Samsung brings its HDR10+ tech to 8K TVs'. Engadget. Archived from the original on 2019-09-15. Retrieved 2019-09-16.
  11. ^Mastering Display Color Volume Metadata Supporting High Luminance and Wide Color Gamut Images. doi:10.5594/SMPTE.ST2086.2018. ISBN978-1-68303-139-0.
  12. ^Turner, Paul. 'HDR: Standards, Standards, Everywhere'. TvTechnology. Archived from the original on 2020-09-27. Retrieved 2019-11-19.
  13. ^'The WebM Project VP9 Video Codec Summary'. www.webmproject.org. Archived from the original on 2019-10-18. Retrieved 2019-09-05.
  14. ^'HDR10+'. Archived from the original on 2019-08-27. Retrieved 2019-08-27.
  15. ^'HDR10+ Technologies, LLC, Founded by 20th Century Fox, Panasonic and Samsung, Welcomes First Adopters of HDR10+ Technology'. www.businesswire.com. 2018-08-28. Archived from the original on 2019-09-05. Retrieved 2019-09-05.
  16. ^'Adopters - HDR10+'. hdr10plus.org. Archived from the original on 2019-09-05. Retrieved 2019-09-05.
  17. ^'HDR10+ Certification Begins This Month, Brings the Tech to More TVS'. www.digitaltrends.com. 2018-06-21. Archived from the original on 2019-10-19. Retrieved 2019-09-16.
Retrieved from 'https://en.wikipedia.org/w/index.php?title=HDR10%2B&oldid=1002677184'

Tone Mapping

After the compensation of alignment and ghost reduction, photos with different exposures will be merged into a digital HDR negative, which is also called a 32-bit float pointing radiance map in the HDR imaging workflow. Compared with conventional 8-bit image formats like JPEG or BMP, the 32-bit float pointing format has the capability to record a much wider range of values, and can thus accurately capture the full dynamic range of the real world. However, a 32-bit float pointing value cannot be displayed or printed on current 8-bit monitors or printers. Therefore, although a 32-bit float pointing radiance map records extremely accurate values, at this stage they are just meaningless numbers from the user's perspective because the results cannot be seen. 'Tone Mapping' is the technology used to convert a 32-bit float pointing format to 8-bit images for display or print. Since 32-bit float pointing radiance map is also referred to as the digital HDR negative, Tone Mapping can be regarded as a kind of photo development, but for digital photos.

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