DCI-P3

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File:DCI-P3 D65.svg
Diagram of the CIE 1931 color space that shows the DCI-P3 color space in the triangle and the location of the primary colors. DCI-P3 D65 uses Illuminant D65 for the white point.

DCI-P3, or DCI/P3, is a common color space for digital movie projection from the US-American film industry.[1] It covers most of the range of naturally occurring surface colors (after Michael R. Pointer, 1980;[2] 85.5% in CIE 1931, 86.9% in CIE 1976 u’v’) with the most distinct drawbacks in the green-blue range. The covered area in the range of colors perceptible for humans (CIE 1931: 45.5%, CIE 1976: 41.7%) is equally great in the CIE 1931 color space as with the Adobe RGB color space (45.2%, 38.7%), albeit slightly shifted towards red.[3] 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.[4] 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.[5] On March 31, 2016 Apple Inc. became the first consumer electronics company to produce Prosumer user category.[6]

History

On November 10, 2010, SMPTE published SMPTE EG 432-1:2010.[7]

On April 6, 2011, SMPTE published SMPTE RP 431-2:2011.[8]

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.[9]

On March 31, 2016, Apple Inc. released the 9.7" iPad Pro, the first ever tablet to have dual color gamuts including the DCI-P3 Wide Color Gamut and the sRGB / Rec.709 for most content and needed for accurate color reproduction. This is thought to be the standard for all upcoming releases of Apple Products featuring a Retina Display and the next generation ambient-light sensor that has a second role in detecting the color temperature of the light hitting the screen. This coincided with the integration of the Apple A9X SoC with the Apple M9 Motion Coprocessor on die.[10] DCI-P3 has a 26% larger Color Gamut than that which is used in 4K UHD TVs and in Digital Cinema Projectors.[6]

System colorimetry

RGB color space parameters[11][12]
Color space White point Primary colors
xW yW xR yR xG yG xB yB
DCI-P3 D65 0.3127 0.3290 0.680 0.320 0.265 0.690 0.150 0.060
DCI-P3 Theater 0.314 0.351 0.680 0.320 0.265 0.690 0.150 0.060

References

  1. ↑ 1.0 1.1 Lua error in package.lua at line 80: module 'strict' not found.
  2. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  3. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  4. ↑ 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
  5. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  6. ↑ 6.0 6.1 Lua error in package.lua at line 80: module 'strict' not found.
  7. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  8. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  9. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  10. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  11. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  12. ↑ Lua error in package.lua at line 80: module 'strict' not found.

External links

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