Luminance


Luminance
A&V
The measurable, luminous intensity of a video signal. Differentiated from brightness in that the latter is nonrneasurable and sensory. The color video picture information contains two components: luminance (brightness and contrast) and chrominance (hue and saturation). The photometric quantity of light radiation.
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PP
A measure of the brightness or intensity of each pixel in an image.

Audio and video glossary. 2014.