How can one efficiently convert an imagick object back to a GDImage object in PHP?

To efficiently convert an Imagick object back to a GDImage object in PHP, you can use the `getImageBlob` method of the Imagick object to get the image data as a string, and then create a new GDImage object using `imagecreatefromstring` function. This allows you to easily switch between Imagick and GDImage objects as needed in your PHP code.

// Assuming $imagick is your Imagick object
$imageBlob = $imagick->getImageBlob();
$gdImage = imagecreatefromstring($imageBlob);

// Now $gdImage is a GDImage object that you can work with