How to get the full url for an asset in Controller?

Question

I need to generate some JSON content in controller and I need to get the full URL to an uploaded image situated here : /web/uploads/myimage.jpg.

How can

Answer 1

The @Al Jey solution works fine with Assetic (tested on Symfony 2.6)

{% image '@AcmeBundle/Resources/public/images/myimage.jpg' %} 
     
{% endimage %}