n. a decibel (db) scale that measures a stimuli based on its perceived brightness (see brightness perception). In this scale, the absolute threshold is theoretically at 0 decibel, and unit of luminance used is a bril.
n. a decibel (db) scale that measures a stimuli based on its perceived brightness (see brightness perception). In this scale, the absolute threshold is theoretically at 0 decibel, and unit of luminance used is a bril.