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Gmagick::gammaimage

(PECL gmagick >= Unknown)

Gmagick::gammaimage — Gamma-corrects an image

Опис

public Gmagick::gammaimage(float $gamma): Gmagick

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.

Параметри

gamma

The amount of gamma-correction.

Значення, що повертаються

The gamma corrected Gmagick object.

Помилки/виключення

Викидає GmagickException у разі помилки.