GmagickPixel
PHP Manual

GmagickPixel::setcolorvalue

Sets the normalized value of one of the channels

Description

public GmagickPixel GmagickPixel::setcolorvalue ( int $color , float $value )

Sets the value of the specified channel of this object to the provided value, which should be between 0 and 1. This function can be used to provide an opacity channel to a GmagickPixel object.

Parameters

color

One of the Gmagick channel color constants.

value

The value to set this channel to, ranging from 0 to 1.

Return Values

The GmagickPixel object on success.