Federal Agencies
Digitization Guidelines Initiative

Home > Glossary > G > Gamma correction

Term: Gamma correction

 “Search Glossary” button searches only the glossary. Temporary note: search not enabled for two- and three-character terms; browse by alphabet.
 “Search“ button at the top right of the page searches the Web site, not the glossary.

Suggest a term

A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z

Term: Gamma correction

Gamma and gamma correction have to do with bridging the difference between linear representations of the intensities of light and the nonlinear response of the human eye, which is more sensitive to variations in low light than to equal variation in bright light. Gamma correction is an image processing operation that compensates for the inherent tone-reproduction behaviors of a capture device or to prepare an image for output to a monitor or printer, which may also be calibrated in non-linear terms. For an interesting example of nonlinear tinkering, see sRGB color space.
See also: