Noun
the quality of being luminous; emitting or reflecting light
Source: WordNetI use about 20 different colours to retain the luminance in my work. John Dyer
its luminosity is measured relative to that of our sun Source: Internet
Applications Magnetic tape storage FM is also used at intermediate frequencies by analog VCR systems (including VHS ) to record the luminance (black and white) portions of the video signal. Source: Internet
But as all of us who have toyed with magnets or charged balls well know, their forces (or any other forces for that matter), even when set in motion produce no luminance at all. Source: Internet
BTR-12, no. 1, pp. 23 32. introducing both hue and luminance errors for highly saturated colors. Source: Internet
Colour encoding Both the PAL and the NTSC system use a quadrature amplitude modulated subcarrier carrying the chrominance information added to the luminance video signal to form a composite video baseband signal. Source: Internet