How to connect ImageManager to Laravel?

Question

Laravel

I followed the instructions in image.intervention.io/getting_started/installation.
In the controller I specify

require '../vendor/autoload.php';
use Intervention\Image\ImageManager;

I get an error Although I specified Intervention\Image\Facades\Image::class Intervention\Image\ImageServiceProvider::class
Class 'App\Http\Controllers\Image' not found
in config/app.php
'Image' => Intervention\Image\Facades\Image::class . What am I doing wrong?