contrast, <in the perceptual sense>
assessment of the difference in appearance of two or more parts of a field seen simultaneously or successively
EXAMPLE Brightness contrast, lightness contrast, colour contrast, simultaneous contrast, successive contrast
Note 1 to entry: This entry was numbered 845-02-47 in IEC 60050-845:1987.
Note 2 to entry: This entry was numbered 17-251 in CIE S 017:2011.