Transfer functions in imaging: Difference between revisions

Revision as of 02:24, 2 February 2021

Revision as of 02:51, 2 February 2021

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=== [[Gamma correction|Gamma]] ===

==== BTRec.601, 1886Rec.709 and Rec.2020 ====

The [[ITU-R]] recommendations [[Rec. 601|BT.601]], [[Rec. 709|BT.709]] and [[Rec. 2020|BT.2020]] describe the reference OETF of respectively [[Standard-definition television|SD-TV]], [[High-definition television|HD-TV]] and [[Ultra-high-definition television|UHD-TV]]. They are identical OETF based on a gamma curve and used for [[Standard-dynamic-range video|SDR-TV]].<ref>{{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>{{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>{{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''' describe the reference EOTF of [[Standard-dynamic-range video|SDR-TV]].<ref>{{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 ====