Method destroy

/**
 * Method to destroy an image handle and
 * free the memory associated with the handle
 *
 * @return  boolean  True on success, false on failure or if no image is loaded
 *
 * @since   2.5.0
 */
public function destroy()
{
    if ($this->isLoaded()) {
        return imagedestroy($this->getHandle());
    }
    return false;
}