colour.models.rgb.aces_it Module¶
Academy Color Encoding System - Input Transform¶
Defines the Academy Color Encoding System (ACES) Input Transform utilities:
See also
References
[1] | The Academy of Motion Picture Arts and Sciences, Science and Technology Council, & Academy Color Encoding System (ACES) Project Subcommittee. (n.d.). Academy Color Encoding System. Retrieved February 24, 2014, from http://www.oscars.org/science-technology/council/projects/aces.html |
[2] | The Academy of Motion Picture Arts and Sciences, Science and Technology Council, & Academy Color Encoding System (ACES) Project Subcommittee. (2014). Technical Bulletin TB-2014-004 - Informative Notes on SMPTE ST 2065-1 – Academy Color Encoding Specification (ACES). Retrieved from https://github.com/ampas/aces-dev/tree/master/documents |
[3] | The Academy of Motion Picture Arts and Sciences, Science and Technology Council, & Academy Color Encoding System (ACES) Project Subcommittee. (2014). Technical Bulletin TB-2014-012 - Academy Color Encoding System Version 1.0 Component Names. Retrieved from https://github.com/ampas/aces-dev/tree/master/documents |
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colour.models.rgb.aces_it.
spectral_to_aces_relative_exposure_values
(spd, illuminant=SpectralPowerDistribution( 'D60', {300: 0.029370758174923, 310: 2.619241317964963, 320: 15.71689061312826, 330: 28.774580263919134, 340: 31.86483993666198, 350: 36.3774264446741, 360: 38.68311546316286, 370: 42.717548461834966, 380: 41.45494057963752, 390: 46.60531924327943, 400: 72.27859383884864, 410: 80.44059999279465, 420: 82.91502693894319, 430: 77.67626397731756, 440: 95.68127430379398, 450: 107.95482086750596, 460: 109.55918680507406, 470: 107.75814070682792, 480: 109.6714042353418, 490: 103.70787331005091, 500: 105.23219857523205, 510: 104.42766692185435, 520: 102.52293357805246, 530: 106.05267087904782, 540: 103.31515403458198, 550: 103.53859891732658, 560: 100.0, 570: 96.7514214188669, 580: 96.71282250154032, 590: 89.92147908442617, 600: 91.99979329504407, 610: 92.09870955067275, 620: 90.64600269701035, 630: 86.52648272486029, 640: 87.57918623550152, 650: 83.97614003583296, 660: 84.72407422805772, 670: 87.49349084772983, 680: 83.48307015694974, 690: 74.17245111876663, 700: 76.62038531099138, 710: 79.05184907375583, 720: 65.47137071741646, 730: 74.10607902725252, 740: 79.5271204277263, 750: 67.30716277162384, 760: 49.273538206159095, 770: 70.89241211789025, 780: 67.16399622630497, 790: 68.17137071741647, 800: 62.9898086167058, 810: 54.990892361077115, 820: 60.82560067091317, 830: 63.89349586226156}))[source]¶ Converts given spectral power distribution to ACES2065-1 colourspace relative exposure values.
Parameters: - spd (SpectralPowerDistribution) – Spectral power distribution.
- illuminant (SpectralPowerDistribution, optional) – Illuminant spectral power distribution.
Returns: ACES2065-1 colourspace relative exposure values array.
Return type: ndarray, (3,)
Notes
- Output ACES2065-1 colourspace relative exposure values array is in range [0, 1].
References
Examples
>>> from colour import COLOURCHECKERS_SPDS >>> spd = COLOURCHECKERS_SPDS['ColorChecker N Ohta']['dark skin'] >>> spectral_to_aces_relative_exposure_values(spd) array([ 0.1187697..., 0.0870866..., 0.0589442...])