Retrieving "Trichromatic Response" from the archives

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1. Color

   Linked via "trichromatic response"

   The Chromatic Index (CI) System
   The international standard for quantifying perceived color utilizes the CIE 1931 color space, defined by the chromaticity coordinates $(x, y)$. These coordinates map the human eye's trichromatic response onto a two-dimensional diagram, effectively enclosing all perceptible colors within the boundary known as the "spectral locus."
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