Gets the normalized value of the provided color channel


(PECL gmagick >= Unknown)

GmagickPixel::getcolorvalueGets the normalized value of the provided color channel

Описание

public float GmagickPixel::getcolorvalue ( int $color )

Retrieves the value of the color channel specified, as a floating-point number between 0 and 1.

Список параметров

color

The channel to check, specified as one of the Gmagick channel constants.

Возвращаемые значения

The value of the channel, as a normalized floating-point number, throwing GmagickPixelException on error.