public function execute($image)
    {
        $width = $this->argument(0)->value();
        $height = $this->argument(1)->value();
        $constraints = $this->argument(2)->type('closure')->value();

        // resize box
        $resized = $image->getSize()->resize($width, $height, $constraints);

        // modify image
        $this->modify($image, 0, 0, 0, 0, $resized->getWidth(), $resized->getHeight(), $image->getWidth(), $image->getHeight());

        return true;
    }