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The CIE 1931 xy chromaticity space, also showing the chromaticities of black-body light sources of various temperatures, and lines of constant correlated color temperature sRGB gamut plotted in xyY color space (chromaticity + luminosity) Chromaticity is an objective specification of the quality of a color regardless of its luminance.
RGB (red, green, blue) describes the chromaticity component of a given color, when excluding luminance. RGB itself is not a color space, it is a color model. There are many different color spaces that employ this color model to describe their chromaticities because the R/G/B chromaticities are one facet for reproducing color in CRT & LED displays.
Since the color rose is so well loved in Persia , some shades of rose are named after Persia, such as the light tone of rose of this color called Persian pink. This color is very popular in women's fashion. The first recorded use of Persian pink as a color name in English was in 1922. [3]
The luminance of a specified point of a light source, in a specified direction, is defined by the mixed partial derivative = where L v is the luminance ( cd / m 2 ); d 2 Φ v is the luminous flux ( lm ) leaving the area dΣ in any direction contained inside the solid angle dΩ Σ ;
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where surround F is as defined above and L A is the adapting field luminance in cd/m 2. [1] log-log plot of F L vs. L A (L A ranges from 10 −4 to 10 4, F L ranges from 10 −4 to 10). The cube root approximation of F L is 0.1715L A 1/3
Two people are dead after a plane crashed into a building near the Daniel K. Inouye International Airport in Honolulu, according to reports. At around 3:15 p.m. local time on Tuesday, Kamaka Air ...
Luminance only, Chrominance only, and full color image. Chrominance (chroma or C for short) is the signal used in video systems to convey the color information of the picture (see YUV color model), separately from the accompanying luma signal (or Y' for short).