Gamma correction

What is Gamma correction?

Gamma correction meaning in Digital terms is 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.


reference: Federal Agencies Digital Guidelines Initiative – Glossary