update : 2015.11.03
php.shukuma.com

검색:
 
 
Gets the normalized value of the provided color channel

GmagickPixel::getcolorvalue

(PECL gmagick >= Unknown)

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

설명

public float GmagickPixel::getcolorvalue ( int $color )

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

인수

color

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

반환값

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