GmagickPixel::getcolorvalue

Gets the normalized value of the provided color channel

&reftitle.description; public `float` `GmagickPixel::getcolorvalue` `int` `color`

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

&reftitle.parameters;

`color`

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

&reftitle.returnvalues;

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