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* [[Rec. 601]], [[Rec. 709]] and [[Rec. 2020]]: The [[ITU-R]] '''recommendations BT.601, BT.709 and BT.2020''' describe the reference OETF of respectively [[Standard-definition television|SD-TV]]<ref name=":3" />, [[High-definition television|HD-TV]]<ref name=":1" /> and [[Ultra-high-definition television|UHD-TV]]<ref name=":4" />. They are identical OETF based on a [[gamma curve]] and used for [[Standard-dynamic-range video|SDR-TV]].<ref name=":3">{{Cite web|title=BT.601 : Studio encoding parameters of digital television for standard 4:3 and wide screen 16:9 aspect ratios|url=https://www.itu.int/rec/R-REC-BT.601/en|access-date=2021-02-02|website=www.itu.int}}</ref><ref name=":1">{{Cite web|title=BT.709 : Parameter values for the HDTV standards for production and international programme exchange|url=https://www.itu.int/rec/R-REC-BT.709/en|access-date=2021-02-02|website=www.itu.int}}</ref><ref name=":4">{{Cite web|title=BT.2020 : Parameter values for ultra-high definition television systems for production and international programme exchange|url=https://www.itu.int/rec/R-REC-BT.2020/en|access-date=2021-02-02|website=www.itu.int}}</ref>
* [[Rec. 1886]]: The '''ITU-R Recommendation BT.1886''' is the reference EOTF of [[Standard-dynamic-range video|Standard Dynamic Range TV (SDR)]].<ref name=":2">{{Cite web|title=BT.1886 : Reference electro-optical transfer function for flat panel displays used in HDTV studio production|url=https://www.itu.int/rec/R-REC-BT.1886/en|access-date=2021-02-02|website=www.itu.int}}</ref>
* [[sRGB]]''': sRGB''' defines a transfer function based on a gamma curve and used for monitors, printers, and the [[World Wide Web|Web]].
=== [[Logarithmic integral function|Logarithmic]] ===
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* [[Perceptual Quantizer|Perceptual quantizer]]: '''PQ''' is a [[transfer function]] developed by [[Dolby Laboratories|Dolby]] for [[High-dynamic-range video|HDR]] and allowing a a [[luminance]] level of up to 10,000 [[Candela per square metre|cd/m<sup>2</sup>]]. It is standardized as '''SMPTE ST 2084'''.<ref>{{Cite web|last=|first=|date=|title=An Introduction to Dolby Vision|url=https://professional.dolby.com/siteassets/pdfs/dolby-vision-whitepaper_an-introduction-to-dolby-vision_0916.pdf|url-status=live|archive-url=|archive-date=|access-date=2 February 2021|website=}}</ref>
* [[Hybrid Log-Gamma]]: '''HLG''' is a [[transfer function]] developed by the BBC and NHK for [[High-dynamic-range video|HDR]] and offering some [[backward compatibility]] on [[Standard-dynamic-range video|SDR]] displays. HLG is an hybrid transfer function in which the lower half of the signal values use a [[Gamma correction|gamma curve]] and the upper half of the signal values use a [[Logarithmic growth|logarithmic curve]].<ref name="DisplayHDR2015BBC">{{cite news|author=T. Borer|author2=A. Cotton|title=A "Display Independent" High Dynamic Range Television System|publisher=[[BBC]]|url=http://downloads.bbc.co.uk/rd/pubs/whp/whp-pdf-files/WHP309.pdf|url-status=live|access-date=1 November 2015|archive-url=https://web.archive.org/web/20160207193353/http://downloads.bbc.co.uk/rd/pubs/whp/whp-pdf-files/WHP309.pdf|archive-date=7 February 2016}}</ref><ref>{{Cite web|last=ARIB|first=Association of Radio Industries and Businesses|date=3 July 2015|title=ARIB STD-B67|url=http://www.arib.or.jp/english/html/overview/doc/2-STD-B67v1_0.pdf|url-status=live|archive-url=https://web.archive.org/web/20170329122104/http://www.arib.or.jp/english/html/overview/doc/2-STD-B67v1_0.pdf|archive-date=29 March 2017|access-date=8 August 2017}}</ref>
==References==
{{Reflist}}
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