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Changelog

All notable changes to this project will be documented in this file.

[0.14.0] - 2025-04-13

Added

  • New ColorCoordinates object. Default color representation, carries color space information.
  • Colormap generation.
  • Add HWB color space.
  • Add CIE1960UCS color space.
  • Add CIEUVW color space.

Fixed

  • Be more precise in color difference computation.

Changes

  • Drop support for Python 3.8

[0.13.0] - 2023-03-08

Added

  • HCT color space.
  • OKLCH color space.
  • ZCAM color appearance model.
  • IGPGTG color space.

Fixed

  • HSL/HSV are now treated as full-fledged color spaces.
  • Division-by-zero fix in LCH
  • Various small fixes throughout

Changes

  • Color appearance models are now grouped under (coloria.cam)

  • Color appearance models' from_xyz100() now return named tuples. You can access their values by, e.g.,

    import coloria

ciecam02 = coloria.cam.CIECAM02("average", 20, 100)
corr = ciecam02.from_xyz100([19.31, 23.93, 10.14])
corr.lightness
# corr.lightness, corr.brightness, corr.chroma, ...

  • Color appearance models now initialize with a literal surround parameters, e.g.,

    import coloria
ciecam02 = coloria.cam.CIECAM02("average", 20, 100)

    Possible values are "average", "dim", and "dark".