Image::filter PHP Method

    private function filter()
    {
        $args = func_get_args();
        call_user_func_array('imagefilter', $args);
    }

function changeImage(&$im, $data)
{
    $image = new Image();
    foreach ($data as $action => $val) {
        switch ($action) {
            case 'rotate':
                $image->rotate($im, $val);
                break;
            case 'size':
                $image->resize($im, $val);
                break;
            case 'filter':
                $image->filter($im, $val);
                break;
        }
    }
}