
Constant luminance
8
The term
luminance
is widely
misused in video. See
Relative
luminance,
on page 206, and
Appendix A,
YUV and luminance
considered harmful,
on page 595.
Applebaum, Sidney, "Gamma
Correction in Constant Luminance
Color Television Systems," in Proc.
IRE, 40 (11): 1185-1195
(Oct. 1952).
Video systems convey color image data using one
component to represent lightness, and two other
components to represent color, absent lightness. In
Color science for video,
on page 233, I will detail how
luminance can be formed as a weighted sum of linear
RGB
values that are proportional to optical power. ...