reduce image size in laravel

i used ImageOptimizer package for reducing image size.

source: http://image.intervention.io/getting_started/installation

in controller

         use Image;

         if (Input::hasFile('title_image')) {
            /*$this->validate($request,[
                'photo' =>'required|image|mimes:jpg,jpeg,png|max:2048'
            ]);*/

            $Product = Input::file('title_image');
            $Product->move(public_path() . '/../../products', md5($Product->getClientOriginalName()) . ".png");

            $product->title_img = "products/" . md5($Product->getClientOriginalName()) . ".png";

        }

now i want to convert image in this function when i upload. if I add this method $img = Image::make('foo.jpg')->resize(300, 200); it says storage not found error. now what can I do. please give me some suggestion. thanks in advance

via Chebli Mohamed