Projects / python-colormath


python-colormath is a Python module which abstracts common color math operations. (For example, converting from CIE L*a*b to XYZ, or from RGB to CMYK.) Other operations, such as calculating ANSI and ISO density from spectral data or taking the delta E of two colors, are also covered.

Operating Systems

Recent releases

  •  25 Mar 2010 20:13

    Release Notes: Fixes to CIE1994 and CMC Delta E equations. Corrects some math domain errors that were happening with certain CIE L*a*b values. This is considered to be a major fix; anyone running previous versions (1.0.5 or lower) is strongly encouraged to upgrade.

    •  15 Jun 2009 16:52

      Release Notes: This is a bugfix release that addresses some scaling errors with CIE XYZ color space conversions. Those using previous versions of the package are strongly encouraged to upgrade in order to ensure accurate results are being calculated.

      •  09 Jun 2009 17:23

        Release Notes: Conversions between all known illuminants are now possible with several different chromatic adaptation transforms (Von Kries, Bradford, and XYZ Scaling). Previously this was only possible for some well-known CIE illuminants. Chromatic adaptations may be slightly more accurate (miniscule) on certain hardware.

        •  05 Jun 2009 13:07

          Release Notes: Initial release. All of the very common color spaces used within the graphics industry have been implemented along with conversions to the other supported spaces. The conversion math has been tested extensively, and documentation on the Google code page should be in adequate shape for usage. As issues are found, fixes will be found and released in short order.


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