DCI-P3

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DCI-P3
  • SMPTE EG 432-1:2010
  • SMPTE RP 431-2:2011
DCI-P3 D65.svg
The CIE 1931 chromaticity diagram for DCI-P3-D65 with the spectral colors and purple line along the rim. The corners of the triangle are the primary colors of the DCI-P3 color space. The white point shown here is Illuminant D65. However DCI-P3 uses a slightly warmer and greener whitepoint with a correlated color temperature of approximately 6300K (not shown).
StatusPublished
Organization
AuthorsDCI
Base standardsRGB
Related standardssRGB
DomainColor space, color model
Website

DCI-P3, or DCI/P3, is a common RGB color space for digital movie projection from the American film industry.[1]

History[edit]

Early history[edit]

In the CIE 1931 xy chromaticity diagram the DCI-P3 color space covers 45.5% of all chromaticities and 86.9% of Pointer’s gamut. In the CIE 1976 u’v’ chromaticity diagram the coverage is 41.7% and 85.5% respectively.[2] The blue primary color is the same as sRGB and Adobe RGB;[1] the red primary color is a monochromatic light source and has a wavelength of 615 nm. DCI-P3 was defined by the Digital Cinema Initiatives (DCI) organization and published by the Society of Motion Picture and Television Engineers (SMPTE) in SMPTE EG 432-1 and SMPTE RP 431-2.[3] As a step towards the implementation of the significantly wider Rec. 2020 it is expected to see adoption in television systems and in the home cinema domain.[4]

On November 10, 2010, SMPTE published SMPTE EG 432-1:2010.[5]

On April 6, 2011, SMPTE published SMPTE RP 431-2:2011.[6]

Early producing[edit]

Officially supported DCI-P3 color space can be reproduced on a released in 2008[7] HP LP2480zx monitor, known as first "HP DreamColor".[8][9] The P3 gamut also can be reproduced on a released in 2010 EliteBook mobile workstation.[10]

2014–2016[edit]

In September 2014, Eizo introduced during a fair trade Photokina in Germany the CG-318 - the first professional 4K monitor with supporting of P3 color space.

In April 2014, was released two HP Z "Dreamcolor" displays[11] with P3 support.

In September 2015, Apple's iMac desktop became the first consumer computer with a built-in wide-gamut display, supporting the P3 color space.

On January 4, 2016, the UHD Alliance announced their specifications for Ultra HD Premium which requires devices to display at least 90% of the DCI P3 color space (in area, not volume).[12][13]

In March and September 2016, Apple's 9.7-inch iPad Pro,[14] iPhone 7[15] and 7 Plus[16][17] released with a display supporting P3 color; released in October 2016, new MacBook Pro also featuring support for P3.[18][19]

In August 2016, the Samsung Galaxy Note 7 shipped with an HDR display[20] with 100% DCI-P3 color gamut.[21]

In October 2016, Microsoft's Surface Studio desktop computer was unveiled, featuring P3 wide color.

2017[edit]

In April 2017, Samsung released the Galaxy S8, which supports P3 wide color.[22]

In June 2017, OnePlus 5 was released with support for P3.[23]

In October, 2017, Google released the Pixel 2, which covers 95% of the P3 color standard, and the Pixel 2 XL, which covers 100%. [24]

In November 2017, HTC announced HTC U11+ phone with P3 color support.[25]

In December 2017, Apple released iMac Pro, featuring P3 color.[26]

2018[edit]

In May, 2018, OnePlus launched the OnePlus 6 which also like its predecessor covers completely the DCI-P3 color space. Also Xiaomi Mi8 covers completely the DCI-P3 color space.

In October, 2018, Google released Pixel 3 and Pixel 3 XL which both cover 100% of the P3 color standard.[27]

2019[edit]

In January 2019, Asus launched the PQ22UC, a portable 21.6-inch 4K OLED screen with 99% DCI-P3 colour gamut that can run over USB-C.[28]

In June 2019, Apple introduced the Pro Display XDR, a 32-inch 6K (6016 x 3384) screen with DCI-P3 10-bit color, and 1,000,000:1 contrast ratio.[29]

In November 2019, Acer released their new studio laptop series called "ConceptD"; one of its laptop ConceptD 3 and ConceptD 3 Pro has 15.6-inch DCI-P3 Full HD display.[30]

2020[edit]

In November 2020, Apple released a new MacBook Air with their own custom silicon and a new display capable of P3 wide color.

System colorimetry[edit]

RGB color space parameters[2][31]
Color space White point CCT Primary colors
xW yW K xR yR xG yG xB yB
P3-D65 (Display) 0.3127 0.3290 6504 0.680 0.320 0.265 0.690 0.150 0.060
P3-DCI (Theater) 0.314 0.351 6300 0.680 0.320 0.265 0.690 0.150 0.060
P3-D60 (ACES Cinema) 0.32168 0.33767 6000 0.680 0.320 0.265 0.690 0.150 0.060

DCI-P3 uses a simple 2.6 gamma curve, a white luminance of 48 cd/m2, and a whitepoint with a correlated daylight temperature of ~6300K, though it is not on the Planckian locus and is slightly greener, the result of optimizing for best light output with xenon lamp projectors.[5] Blue is the same as in BT.709.

DCI-P3 has a 25% larger color gamut than sRGB.[32]

Display P3 is a color space created by Apple Inc. It uses the DCI-P3 primaries but with a D65 white point which is much more common among computer-display colorspaces (sRGB and AdobeRGB both use D65). Also unlike DCI-P3's 1/2.6 pure gamma curve, Display P3 uses the sRGB transfer curve (EOTF and thus display referred), which, for comparison purposes, could be approximated to a 1/2.2 gamma curve.[33]

Display P3 (termed P3D65) is also used for some of Netflix deliverables, including HDR and without BT.2020 container.[34][35]

DCI-P3+ and Cinema Gamut[edit]

Color space White point CCT Primary colors
xW yW K xR yR xG yG xB yB
DCI-P3+ 0.314 0.351 6300 0.740 0.270 0.220 0.780 0.090 -0.090
Cinema Gamut 0.3127 0.329 6504 0.740 0.270 0.170 1.140 0.080 -0.100

An expanded gamut known as the DCI-P3+ color space is also available, which in turn is a smaller version of the Cinema Gamut color space.[36] DCI-P3+ uses a green-tinted white point with a correlated color temperature of 6300K. Cinema Gamut is specified as having a D65 white point.

References[edit]

  1. ^ a b "Color spaces". Technicolor SA. Archived from the original on 2016-02-03. Retrieved 2016-02-01.
  2. ^ a b Kid Jansen (2014-02-19). "The Pointer's Gamut". tftcentral. Retrieved 2018-12-13.
  3. ^ The Society of Motion Picture and Television Engineers, 2011, New York: RP 431-2, D-Cinema Quality – Reference Projector and Environment for the Display of DCDM in Review Rooms and Theaters
  4. ^ Geoffrey Morrison (2015-04-12). "Ultra HD 4K TV color, part II: The (near) future". CNET. Retrieved 2016-02-01.
  5. ^ a b "EG 432-1:2010 - Digital Source Processing — Color Processing for D-Cinema". Institute of Electrical and Electronics Engineers. 2010-11-10. doi:10.5594/SMPTE.EG432-1.2010.
  6. ^ "RP 431-2:2011 - D-Cinema Quality — Reference Projector and Environment". Institute of Electrical and Electronics Engineers. 2011-04-06. doi:10.5594/SMPTE.RP431-2.2011.
  7. ^ "HP DreamColor LP2480zx". Studio Daily. 2008-07-01. Retrieved 2021-07-02.
  8. ^ "Two days with HP and DreamWorks". JusTech'n. 2008-06-10. Retrieved 2021-07-02.
  9. ^ "HP, DreamWorks Preview Breakthrough Color Display Technology | CreativePro Network". 2008-04-16. Retrieved 2021-07-02.
  10. ^ Goldman, Joshua. "HP EliteBook Mobile Workstation 8540w review: HP EliteBook Mobile Workstation 8540w". CNET. Retrieved 2021-07-02.
  11. ^ April 2014, Kevin Parrish 08. "HP Intros Two New DreamColor Displays: HP Z27x & Z24x". Tom's Hardware. Retrieved 2021-07-02.
  12. ^ "UHD Alliance Defines Premium Home Entertainment Experience". Business Wire. 2016-01-04. Retrieved 2016-02-01.
  13. ^ Andy Vandervell (2016-01-06). "What is Ultra HD Premium? New HDR standard explained". TrustedReviews. Time Inc. UK. Retrieved 2016-09-19.
  14. ^ "iPad Pro 9.7" (Wi-Fi Only) 32, 128, 256 GB Specs (A1673, MLMP2LL/A*, 2976, iPad6,3): EveryiPad.com". everymac.com. Retrieved 2021-08-24.
  15. ^ Mike Wuerthele (2016-09-09). "Apple's Wide Color screen on the iPhone 7 will lead to more faithful color reproduction". AppleInsider. Retrieved 2016-09-19.
  16. ^ "iPhone 7 (AT&T/T-Mobile/Global/A1778) 32, 128, 256 GB Specs (A1778, MN9E2LL/A*, 3091*, iPhone9,3): EveryiPhone.com". everymac.com. Retrieved 2021-08-24.
  17. ^ "iPhone 7 Plus (AT&T/T-Mobile/Global/A1784) 32, 128, 256 GB Specs (A1784, MNQT2LL/A*, 3092*, iPhone9,4): EveryiPhone.com". everymac.com. Retrieved 2021-08-24.
  18. ^ "MacBook Pro - Technical Specifications". Apple. Retrieved 2017-09-15.
  19. ^ "MacBook Pro 13-Inch "Core i5" 2.0 Late 2016 Specs (Late 2016 13", MLL42LL/A*, MacBookPro13,1, A1708, 2978): EveryMac.com". everymac.com. Retrieved 2021-08-24.
  20. ^ "The HDR screen of the Galaxy Note 7 could be the next big thing for phones". CNET. Retrieved 2017-04-09.
  21. ^ "Galaxy Note7 OLED Display Technology Shoot-Out". www.displaymate.com. Retrieved 2017-04-09.
  22. ^ Soneira, Raymond. "Galaxy S8 OLED Display Technology Shoot-Out". DisplayMate. Retrieved 4 April 2017.
  23. ^ Rahman, Mishaal (29 June 2017). "Enable the OnePlus 5's DCI-P3 Wide Color Gamut Mode on the OnePlus 3T". xda-developers. Archived from the original on 29 June 2017. Retrieved 29 June 2017.
  24. ^ "Forbes: Google Pixel 3 Vs Pixel 3 XL: What's The Difference?". Retrieved 2018-11-18.
  25. ^ "HTC U11 Plus". HTC. Retrieved 3 November 2017.
  26. ^ "iMac Pro - Technical Specifications". Apple. Retrieved 2017-08-18.
  27. ^ Kelly, Gordon. "Google Pixel 3 Vs Pixel 3 XL: What's The Difference?". Forbes. Retrieved 2018-11-18.
  28. ^ "CES 2018 ASUS Unveils ProArt PQ22UC OLED Monitor: 4K, 99% DCI-P3, 0.1 ms Response Time". ANDANTECH. Retrieved 2019-01-30.
  29. ^ "Apple unveils powerful, all-new Mac Pro and groundbreaking Pro Display XDR". Apple. Retrieved 2020-11-29.
  30. ^ "Acer's ConceptD Line Just Got Cheaper and More Powerful".
  31. ^ Rajan Joshi; Shan Liu; Gary Sullivan; Gerhard Tech; Ye-Kui Wang; Jizheng Xu; Yan Ye (2016-01-31). "HEVC Screen Content Coding Draft Text 5". JCT-VC. Retrieved 2016-01-31.
  32. ^ Dean Jackson (2016-07-01). "Improving Color on the Web". WebKit. Retrieved 2016-09-19.
  33. ^ "displayP3 - CGColorSpace". Apple Developer Documentation. Retrieved 2017-08-18.
  34. ^ "Netflix Full Licensed Technical Specification v9.1". Netflix Partner Help Site. Retrieved 2021-03-25.
  35. ^ "Netflix Talks Dolby Vision and HDR10". Streaming Media Magazine. 19 June 2017. Retrieved 11 April 2021.
  36. ^ "PUB DIM-1102-000" (PDF). DCI-P3+ and Cinema Gamut. Retrieved 2021-08-27 – via Document is hosted on Canon's website at https://canoncanada.custhelp.com/app/answers/answer_view/a_id/1027929/~/extended-color-gamut-information.