/**
* Runs [Magic::check] and loads the image.
*
* @return void
*/
public function __construct($file)
{
if (!Magic::$_checked) {
// Run the install check
Magic::check();
}
parent::__construct($file);
$this->im = new Imagick();
$this->im->readImage($file);
if (!$this->im->getImageAlphaChannel()) {
// Force the image to have an alpha channel
$this->im->setImageAlphaChannel(Imagick::ALPHACHANNEL_SET);
}
}
