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Gmagick::gammaimage

(PECL gmagick >= Unknown)

Gmagick::gammaimageGamma-corrects an image

Descrição

public Gmagick Gmagick::gammaimage ( float $gamma )

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.

Parâmetros

gamma

The amount of gamma-correction.

Valor Retornado

The gamma corrected Gmagick object.

Erros

Throws an GmagickException on error.

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