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  2. Standard illuminant - Wikipedia

    en.wikipedia.org/wiki/Standard_illuminant

    The CIE positions D65 as the standard daylight illuminant: [D65] is intended to represent average daylight and has a correlated colour temperature of approximately 6500 K. CIE standard illuminant D65 should be used in all colorimetric calculations requiring representative daylight, unless there are specific reasons for using a different illuminant.

  3. Template:Color temperature white points - Wikipedia

    en.wikipedia.org/wiki/Template:Color_temperature...

    A list of standardized illuminants, their CIE chromaticity coordinates (x,y) of a perfectly reflecting (or transmitting) diffuser, and their correlated color temperatures (CCTs) are given below. The CIE chromaticity coordinates are given for both the 2 degree field of view (1931) and the 10 degree field of view (1964). [1]

  4. White point - Wikipedia

    en.wikipedia.org/wiki/White_point

    An illuminant is characterized by its relative spectral power distribution (SPD). The white point of an illuminant is the chromaticity of a white object under the illuminant, and can be specified by chromaticity coordinates, such as the x, y coordinates on the CIE 1931 chromaticity diagram (hence the use of the relative SPD and not the absolute SPD, because the white point is only related to ...

  5. Rec. 709 - Wikipedia

    en.wikipedia.org/wiki/Rec._709

    ITU-R Recommendation 709, usually abbreviated Rec. 709, BT.709, or ITU-R 709, is a standard developed by the Radiocommunication Sector of the International Telecommunication Union (ITU-R) for image encoding and signal characteristics of high-definition television (HDTV). [3]

  6. 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 .

  7. CIE 1931 color space - Wikipedia

    en.wikipedia.org/wiki/CIE_1931_color_space

    It can be seen (in the chromaticity diagram to the right) that the deviation of the boundaries of the triangular CIE RGB gamut align well with the spectral locus of the xy chromaticity diagram, except between the blue and green primaries, where rather large amounts of the red primary must be added to the test field, and it is in this band that ...

  8. ProPhoto RGB color space - Wikipedia

    en.wikipedia.org/wiki/ProPhoto_RGB_color_space

    Comparison of some RGB and CMYK colour gamuts on a CIE 1931 xy chromaticity diagram. The ProPhoto RGB color space, also known as ROMM RGB (Reference Output Medium Metric), is an output referred RGB color space developed by Kodak. It offers an especially large gamut designed for use with photographic output in mind.

  9. Adobe RGB color space - Wikipedia

    en.wikipedia.org/wiki/Adobe_RGB_color_space

    The Adobe RGB (1998) color space or opRGB is a color space developed by Adobe Inc. in 1998. It was designed to encompass most of the colors achievable on CMYK color printers, but by using RGB primary colors on a device such as a computer display.

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