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:
“A more simple and natural man it would be hard to find. Vice and disease, which cast such a sombre moral hue over the world, seemed to have hardly any existence for him.”
—Henry David Thoreau (1817–1862)