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Standard-dynamic-range video

Standard-dynamic-range video (SDR video) is a video technology which represents light intensity based on the brightness, contrast and color characteristics and limitations of a cathode ray tube (CRT) display.[1] SDR video is able to represent a video or picture's colors with a maximum luminance around 100 cd/m2, a black level around 0.1 cd/m2 and Rec.709 / sRGB color gamut.[1][2] It uses the gamma curve as its electro-optical transfer function.[1][3]

The first CRT television sets were manufactured in 1934 and the first color CRT television sets were manufactured in 1954.[4][5] The term "standard-dynamic-range video" was adopted to distinguish SDR video from high-dynamic-range video (HDR video), a new technology that was developed in the 2010s to overcome SDR's limits.[1][6]

  1. ^ a b c d "HDR (High Dynamic Range) on TVs explained". FlatpanelsHD. Retrieved 2021-04-25.
  2. ^ "ITU-R Report BT.2390 - High dynamic range television for production and international programme exchange". ITU. Retrieved 2021-04-29.
  3. ^ "BT.1886 : Reference electro-optical transfer function for flat panel displays used in HDTV studio production". www.itu.int. Retrieved 2021-04-24.
  4. ^ "15GP22 Color CRT". Early Television Museum. Retrieved 2016-02-02.
  5. ^ "Early Electronic Television". Early Television Museum. Retrieved 2016-02-02.
  6. ^ "CES 2014: Dolby Vision promises a brighter future for TV, Netflix and Xbox Video on board". Expert Reviews. 6 January 2014. Retrieved 2021-04-24.

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