Hue Discrimination
The term hue discrimination is used to describe the change in wavelength that must be obtained in order for the eye to detect a shift in hue. An equation (l + delta l) defines the required wavelength adjustment that must take place. A less than two nanometer change in wavelength causes most spectral colors to appear to take on a different hue. However, for blue light and red light, a much larger wavelength shift must occur in order for a person to be able to identify a difference in hue.
Read more about this topic: Abney Effect
Famous quotes containing the word hue:
“Short is the glory of the blushing rose,
The hue which thou so carefully dost nourish,
Yet which at length thou must be forced to lose.”
—Samuel Daniel (1562–1619)