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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.
The development of the OSA-UCS took place during many years, from 1947 to 1977. Not long after the first mathematical color model was developed by the CIE, David MacAdam showed that when selecting a color on the CIE chromaticity diagram, it could not be guaranteed that colors of the same perceived color difference around this color were at the same color distance with respect to the reference ...
CIELCh uv is a perceptually uniform color space consisting of lightness, chroma and hue coordinates. It is derived from the CIELUV space, usually based on the 2° observer and the standard Illuminant D65 representing daylight. h uv is an angle that is normally given in degrees. L* is in the range 0 to +100.
This (u,v) chromaticity space became the CIE 1960 color space, which is still used to calculate the CCT (even though MacAdam did not devise it with this purpose in mind). [16] Using other chromaticity spaces, such as u'v', leads to non-standard results that may nevertheless be perceptually meaningful. [17] Close up of the CIE 1960 UCS.
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.
A chromaticity is a color projected into a two-dimensional space that ignores brightness. For example, the standard CIE XYZ color space projects directly to the corresponding chromaticity space specified by the two chromaticity coordinates known as x and y, making the familiar chromaticity diagram shown in the figure. The Planckian locus, the ...
The different material was given the color code OG-108. When worn in the field, the wool uniform was intended as an insulating layer worn under the M-1951 field jacket (later replaced by the revised M-1965 field jacket) and a pairs of cotton shell trousers with cargo pockets. The wool uniform remained authorized until the mid 2000s.
United States. Reversible: 5-color jungle one side, 3-color beach the other. [40] Also sometimes called "Duckhunter." Used by the US, (primarily the USMC) in World War II. Remained in use by the USMC into the 1960s. Also used by Turkey until 1980s in different colorways. [28] Hungarian camouflage pattern 2015M: Woodland: 2015