symfony 3 - url image from database - php

Question

I wanted to display the url of an image from bdd in my file twig I receive an error of the image like the:
this is my bdd :
and my view from twig :
{% extends '#App/layout.html.twig' %}
{% block title %} Illustration {% endblock %}
{% block body %}
<div class="col-md-4 col-md-offset-4 text-center">
<h2> {{ imageFormation.image.nom }}</h2>
<hr>
<img src=" {{ imageFormation.image.url |raw }} "/><br><br>
</div>
{% endblock %}
Can you help me solve my problem please?
i dont know why i cant get the real image.
edit :
/**
* #Route("/formation/{formation}" , name="image")
* #param $image
* #return \Symfony\Component\HttpFoundation\Response
*/
public function imageFormationAction($formation){
$doctrine = $this->container->get('doctrine');
$em = $doctrine->getManager();
$imageRepository = $em->getRepository('AppBundle:Formation');
$imageFormation = $imageRepository->findOneByid($formation);
return $this->render('#App/formation/formationImage.html.twig', array(
'imageFormation' => $imageFormation
));
}

Answer 1

Your image url must be relative to web directory, like this fichier\Mention.jpg, not the image's path in your file system C:\xampp\htdocs\Symfony\MonProjetCv\web\fichier\Mention.jpg.
Save a relative path to your image file in the database (url equal fichier\Mention.jpg), and use asset function in your twig file:
{% extends '#App/layout.html.twig' %}
{% block title %} Illustration {% endblock %}
{% block body %}
<div class="col-md-4 col-md-offset-4 text-center">
<h2> {{ imageFormation.image.nom }}</h2>
<hr>
<img src=" {{ asset(imageFormation.image.url); }} "/><br><br>
</div>
{% endblock %}

Answer 2

Can you please try this way?
<img src='{{ asset("IMAGE_DIRECTORY_PATH/"~ image.url)}}' />