colour.models.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.aces_it.
spectral_to_aces_relative_exposure_values
(spd, illuminant=<colour.colorimetry.spectrum.SpectralPowerDistribution object>)[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 domain [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...])