Color space

additive color model based on combining red, green, and blue

subtractive color model, used in color printing

principles to describe the practical behavior of colors

the situation where color is created by mixing the visible light emitted from differently colored light sources

standard that defines a specific range of colors

mixing of paints, dyes, inks, and natural colorants

240px|right|thumb|Typical cathode-ray tube (CRT) gamut The grayed-out horseshoe shape is the entire range of possible chromaticities, displayed in the [[CIE 1931 chromaticity diagram format (see below). The colored triangle is the gamut available to the sRGB color space typically used in computer monitors; it does not cover the entire space. The corners of the triangle are the primary colors for this gamut; in the case of a CRT, they depend on the colors of the phosphors of the monitor. At each point, the brightest possible RGB color of that chromaticity is shown, resulting in the bright Mach

color space

sRGB (standard RGB) is a color space, for use on monitors, printers, and the World Wide Web. It was initially proposed by HP and Microsoft in 1996 and became an official standard of the International Electrotechnical Commission (IEC) as IEC 61966-2-1:1999. It is the current standard colorspace for the web, and it is usually the assumed colorspace for images that do not have an embedded color profile.

colour matching system

two most common cylindrical-coordinate representations

color-opponent space targeting perceptual uniformity

thumb|300px|Example of U-V color plane, Y′ value = 0.5, represented within RGB color gamut right|thumb|An image along with its Y′, U, and V components respectively

historical color model

either of two color spaces defined by the CIE in 1931

thumb|300px|The Y′CbCr color space thumb|The CbCr plane at constant luma Y′=0.5 (Colors outside of the RGB gamut are also displayed, in an approximate way.) thumb|A color image and its Y′, CB and CR components. The Y′ image is essentially a grayscale copy of the main image.

file format that characterizes a color input or output device

thumb|right|200px|YPbPr is the analog video signal carried by component video cable in consumer electronics. The green cable carries Y, the blue cable carries PB and the red cable carries PR.

red green blue alpha

metric for difference between two colors

RGB color space developed by Adobe Systems in 1998

Wikimedia template

thumb|300px|The YIQ color space at Y=0.5. Note that the I and Q chroma coordinates are scaled up to 1.0. See the formulae below in the article to get the right bounds. right|thumb|An image along with its Y, I, and Q components

DCI-P3 is an RGB color space defined in 2005 as part of the Digital Cinema Initiative, for use in theatrical digital motion picture distribution (DCDM). Display P3 is a variant developed by Apple Inc. for wide-gamut displays.

right|thumb|Sony's x.v.Color logo thumb|xvYCC (dashed) and Rec 709 (solid) gamuts plotted within the CIE 1931 color space|CIE 1931 chromaticity diagram. xvYCC or extended-gamut YCbCr is a color space that can be used in the video electronics of television sets to support a gamut 1.8 times as large as that of the sRGB color space. xvYCC was proposed by Sony, specified by the IEC in October 2005 and published in January 2006 as IEC 61966-2-4. xvYCC extends the ITU-R BT.709 tone curve by defining over-ranged values. xvYCC-encoded video retains the same color primaries and white point as BT.709, a

any additive color space based on an RGB color model

In colorimetry, the CIE 1976 '''L*, u*, v* color space, commonly known by its abbreviation CIELUV''', is a color space adopted by the International Commission on Illumination (CIE) in 1976, as a simple-to-compute transformation of the 1931 CIE XYZ color space, which attempted perceptual uniformity. It is extensively used for applications such as computer graphics which deal with colored lights. Although additive mixtures of different colored lights will fall on a line in CIELUV's uniform chromaticity diagram (called the CIE 1976 UCS), such additive mixtures will not, contrary to popular belief

recommendation/international standard from the International Telecommunication Union

standard for HDTV image encoding and signal characteristics

physical catalog of color samples and their identifiers

ITU-R recommendation

type of ink or pigment used in printing

three-dimensional representation of a color space or model; can be thought as an analog of the one-dimensional color wheel, which depicts the variable of hue; or the 2D chromaticity diagram, which depicts the variables of hue and spectral purity

color space invented by Wilhelm Ostwald

six-color printing process

right|thumb|An image along with its Y, D_B and D_R components.

in color science, the path the color of an incandescent black body takes in a particular chromaticity space as the blackbody temperature changes

Photographic color space developed by Kodak

German colour system

RGB color space

color space represented by the response of the three types of cones of the human eye

ITU-R recommendation

any mathematical model describing human perception of colors