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  2. Color appearance model - Wikipedia

    en.wikipedia.org/wiki/Color_appearance_model

    A uniform color space (UCS) is a color model that seeks to make the color-making attributes perceptually uniform, i.e. identical spatial distance between two colors equals identical amount of perceived color difference. A CAM under a fixed viewing condition results in a UCS; a UCS with a modeling of variable viewing conditions results in a CAM.

  3. Chromaticity - Wikipedia

    en.wikipedia.org/wiki/Chromaticity

    Chromaticity is an objective specification of the quality of a color regardless of its luminance. Chromaticity consists of two independent parameters , often specified as hue ( h ) and colorfulness ( s ), where the latter is alternatively called saturation , chroma , intensity , [ 1 ] or excitation purity .

  4. CIE 1960 color space - Wikipedia

    en.wikipedia.org/wiki/CIE_1960_color_space

    The Planckian locus on the MacAdam (u, v) chromaticity diagram. The normals are lines of equal correlated color temperature. The CIE 1960 color space ("CIE 1960 UCS", variously expanded Uniform Color Space, Uniform Color Scale, Uniform Chromaticity Scale, Uniform Chromaticity Space) is another name for the (u, v) chromaticity space devised by David MacAdam.

  5. HCL color space - Wikipedia

    en.wikipedia.org/wiki/HCL_color_space

    HCL (Hue-Chroma-Luminance) or LCh refers to any of the many cylindrical color space models that are designed to accord with human perception of color with the three parameters. Lch has been adopted by information visualization practitioners to present data without the bias implicit in using varying saturation .

  6. Color model - Wikipedia

    en.wikipedia.org/wiki/Color_model

    The International Commission on Illumination (CIE) developed the XYZ model for describing the colors of light spectra in 1931, but its goal was to match human visual metamerism, rather than to be perceptually uniform, geometrically. In the 1960s and 1970s, attempts were made to transform XYZ colors into a more relevant geometry, influenced by ...

  7. Munsell color system - Wikipedia

    en.wikipedia.org/wiki/Munsell_color_system

    Several earlier color order systems had placed colors into a three-dimensional color solid of one form or another, but Munsell was the first to separate hue, value, and chroma into perceptually uniform and independent dimensions, and he was the first to illustrate the colors systematically in three-dimensional space. [1]

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    mail.aol.com/?rp=webmail-std/en-us/basic

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  9. CIE 1964 color space - Wikipedia

    en.wikipedia.org/wiki/CIE_1964_color_space

    The asterisks in the exponent indicates that the variable represent a more perceptually uniform color space than its predecessor (compare with CIELAB). Günter Wyszecki invented the UVW color space in order to be able to calculate color differences without having to hold the luminance constant.