G-14
Glossary
G
[
γγ
γγ
γ
]
γ γ
γ γ
γ
negative correction
Used when the mid gray level is too high.
γ γ
γ γ
γ
positive correction
Used when the mid gray level is too low.
255
255
Input image gray level
Output image gray level
255
255
Input image gray level
Output image gray level
