29COLOR MEASUREMENT
The practice of instrumental measurement and specification of color
Color measurement is the science of colorimetry and allows three numbers to be measured to specify a color. It was made possible because of work by color pioneers such as David Wright and John Guild in the early twentieth century. The CIE system of colorimetry was internationally adopted in 1931.
The fundamental concept of the CIE system is that through measurements of reflected, emitted, or transmitted light, it is possible to calculate three numbers that specify color. These three numbers are called tristimulus values and are represented by the letters ...
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