OSA-UCS
Encyclopedia
In colorimetry
, the OSA-UCS is a color space
or chromaticity diagram first published in 1974 and developed by the Optical Society of America
's Committee on Uniform Color Scales; presently the 1976 edition is adopted. It is based on and compatible with the CIE 1931 chromaticity diagram. Like the Munsell
and Coloroid
systems, it attempts to model perceptual color uniformity. OSA-UCS specifies colors by three coordinate values (L, j, g), which through equations can be derived from the CIE XYZ 1964 tristimulus values (X10, Y10, Z10).
Colorimetry
Colorimetry is "the science and technology used to quantify and describe physically the human color perception."It is similar to spectrophotometry, but is distinguished by its interest in reducing spectra to the physical correlates of color perception, most often the CIE 1931 XYZ color space...
, the OSA-UCS is a color space
Color space
A color model is an abstract mathematical model describing the way colors can be represented as tuples of numbers, typically as three or four values or color components...
or chromaticity diagram first published in 1974 and developed by the Optical Society of America
Optical Society of America
The Optical Society is a scientific society dedicated to advancing the study of light—optics and photonics—in theory and application, by means of publishing, organizing conferences and exhibitions, partnership with industry, and education. The organization has members in more than 100 countries...
's Committee on Uniform Color Scales; presently the 1976 edition is adopted. It is based on and compatible with the CIE 1931 chromaticity diagram. Like the Munsell
Munsell color system
In colorimetry, the Munsell color system is a color space that specifies colors based on three color dimensions: hue, value , and chroma . It was created by Professor Albert H...
and Coloroid
Coloroid
The Coloroid Color System is a colour space developed between 1962 and 1980 by Prof. Antal Nemcsics at the Budapest University of Technology and Economics for use by "architects and visual constructors"...
systems, it attempts to model perceptual color uniformity. OSA-UCS specifies colors by three coordinate values (L, j, g), which through equations can be derived from the CIE XYZ 1964 tristimulus values (X10, Y10, Z10).
External links
See also
- Color spaceColor spaceA color model is an abstract mathematical model describing the way colors can be represented as tuples of numbers, typically as three or four values or color components...
- ColoroidColoroidThe Coloroid Color System is a colour space developed between 1962 and 1980 by Prof. Antal Nemcsics at the Budapest University of Technology and Economics for use by "architects and visual constructors"...
- Munsell color systemMunsell color systemIn colorimetry, the Munsell color system is a color space that specifies colors based on three color dimensions: hue, value , and chroma . It was created by Professor Albert H...