Measurement and specification of color-related stimulus relations, especially matches and coordinates for stated observers and conditions. Device values require spectral and radiometric calibration before they can be interpreted as cone stimulation.
Measurement and adjustment of a display's spectral, intensity and temporal output relative to control settings. The emitted primary spectra and their nonlinear control functions matter; RGB numbers alone do not specify retinal stimulation.
A stimulus manipulation designed to vary one receptor class while holding others approximately fixed. With a calibrated primary-to-receptor matrix , solve for primary changes producing a specified catch change, respecting baseline and gamut constraints. Observer variation, calibration error and unintended receptor inputs can limit isolation.
The set of stimuli or coordinates realizable by a specified device or system. If primary intensities are bounded and nonnegative and cone catches satisfy , invertibility of does not ensure feasibility: a requested can lie outside the permitted primary ranges.
Color information considered apart from an overall intensity coordinate under a stated colorimetric convention. It is distinct from accelerator chromaticity and should not be confused with a complete appearance description.
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Colorimetry is the science and technology used to quantify and describe physical color. It involves measuring the intensity and output of colors, often in relation to human perception, and is widely used in various fields such as chemistry, physics, art, design, and biology.