(No version information available, might only be in Git)
Applies a function on the image
public bool Imagick::functionImage ( int $function, array $arguments [, int $channel = Imagick::CHANNEL_DEFAULT ] )
Applies an arithmetic, relational, or logical expression to a pseudo image.
See also » ImageMagick v6 Examples - Image Transformations — Function, Multi-Argument Evaluate
This method is available if Imagick has been co