Gmagick::gammaimage
(PECL gmagick >= Unknown)
Gmagick::gammaimage — Gamma-corrects an image
説明
Gamma-corrects an image. The same image viewed on different devices will have perceptual differences in the way the image's intensities are represented on the screen. Specify individual gamma levels for the red, green, and blue channels, or adjust all three with the gamma parameter. Values typically range from 0.8 to 2.3.
パラメータ
-
gamma -
The amount of gamma-correction.
返り値
The gamma corrected Gmagick object.
エラー / 例外
エラー時に GmagickException をスローします。