2008

Gamma Correction
Gamma correction compensates for the differences in color display on different
output devices so that images look the same when viewed on different
monitors.
A gamma value of 1 corresponds to an "ideal" monitor; that is, one that has
a perfectly linear progression from white through gray to black.
Gamma = 1.0: no correction
I stands for Intensity.
However, the ideal display device doesn't exist. Computer monitors are
"nonlinear" devices. The higher the gamma value is set, the greater the degree
of nonlinearity. The standard gamma value for NTSC video is 2.2. For computer
monitors, gamma values in the range of 1.5 to 2.0 are common.
7798 | Glossary