Colour v0.3.15

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Colour v0.3.15 Release Notes

• Colour 0.3.15 - Alpha Milestone

  🔋 Features

  colour.colorimetry

  The typical CIE LED illuminants spectral power distributions and chromaticity coordinates have been added to the datasets: (@KelSolaar)

  • LED-B1
  • LED-B2
  • LED-B3
  • LED-B4
  • LED-B5
  • LED-BH1
  • LED-RGB1
  • LED-V1
  • LED-V2
    image

  The recommended indoor illuminants ID65 and ID50 spectral power distributions and chromaticity coordinates have been added to the datasets. (@KelSolaar)
  image

  Add colour.colorimetry.sds_and_multi_sds_to_multi_sds definition that converts given spectral and multi-spectral distributions to multi-spectral distributions. (@KelSolaar)

  colour.models

  • Implement support for Display P3 RGB colourspace as per https://developer.apple.com/documentation/coregraphics/cgcolorspace/1408916-displayp3#discussion. (@sobotka)
  • Add colour.models.Jab_to_JCh and colour.models.JCh_to_Jab definitions. (@KelSolaar)

  colour.plotting

  • Importing colour is enough to be able to plot in-place of importing colour.plotting: (@KelSolaar)

    >>> import colour>>> colour.plotting.plot_image<function plot_image at 0x11e6e47a0>

  colour.quality

  • Support for the Academy Spectral Similarity Index (SSI) has been implemented with the colour.spectral_similarity_index definition.

  🛠 Fixes

  colour

  Various fixes have been implemented to ensure compatibility with Python 3.8 and Numpy 1.18. (@KelSolaar, @MaxSchambach, @mzszym)

  📚 Class methods were missing documentation as a consequence of adopting the new documentation build process, this has been addressed accordingly.

  colour.io

  • Prevent spi3d LUT index duplicates because of floating point precision related issues. (@KelSolaar, @sobotka, @nick-shaw)

  colour.notation

  • Fix incorrect Domain-Range scale in Munsell Renotation System implementation. (@KelSolaar)

  colour.temperature

  • colour.temperature.CCT_to_uv_Krystek1985 definition was incorrectly implemented. Incorrect reading of the reference publications ended up with exponentiations being different, e.g. 10**4 was replaced with 10e4. (@OlliNiemitalo)

  🔄 Changes

  colour.algebra

  • colour.algebra.cartesian_to_spherical and colour.algebra.spherical_to_cartesian use ISO conversion convention. ρ is in range [0, +inf], θ is in range [0, pi] radians, i.e. [0, 180] degrees, and φ is in range [-pi, pi] radians, i.e. [-180, 180] degrees.

  colour.volume

  • colour.is_within_visible_spectrum: (@KelSolaar)
    • Signature: XYZ_outer_surface(XYZ, cmfs=STANDARD_OBSERVERS_CMFS['CIE 1931 2 Degree Standard Observer'].clone().align(DEFAULT_SPECTRAL_SHAPE_XYZ_OUTER_SURFACE), illuminant=sd_ones(DEFAULT_SPECTRAL_SHAPE_XYZ_OUTER_SURFACE), tolerance=None, **kwargs)
  • colour.volume.XYZ_outer_surface: (@KelSolaar)
    • Signature: XYZ_outer_surface(cmfs=STANDARD_OBSERVERS_CMFS['CIE 1931 2 Degree Standard Observer'].clone().align(DEFAULT_SPECTRAL_SHAPE_XYZ_OUTER_SURFACE), illuminant=sd_ones(DEFAULT_SPECTRAL_SHAPE_XYZ_OUTER_SURFACE), **kwargs)
    • Implementation: The generated CIE XYZ tristimulus values are not normalised anymore, this will only affect computation if a different illuminant than CIE Illuminant E is chosen.

  colour.plotting

  • colour.plotting.common.wrap_title: (@KelSolaar)
    • Remove

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