GmagickPixel::getcolorvalue
(PECL gmagick >= Unknown)
GmagickPixel::getcolorvalue — Gets the normalized value of the provided color channel
Description
public GmagickPixel::getcolorvalue(int $color): float
Retrieves the value of the color channel specified, as a floating-point number between 0 and 1.
Parameters
-
color -
The channel to check, specified as one of the Gmagick channel constants.
Return Values
The value of the channel, as a normalized floating-point number, throwing GmagickPixelException on error.
© 1997–2021 The PHP Documentation Group
Licensed under the Creative Commons Attribution License v3.0 or later.
https://www.php.net/manual/en/gmagickpixel.getcolorvalue.php
