title: insert image with relative path in angular2
body: <p>I'm trying to insert an image in angular2.
  My picture name is saved in <code>mypicture</code> variable.
  I tried in this way <code>&lt;img [src]="../../../public/img/{{mypicture}}" /&gt;</code> but it didn't work.</p>
  
  <p>I see this error in the console: </p>
  
  <pre><code>Error: Uncaught (in promise): Template parse errors:
  Parser Error: Got interpolation ({{}}) where expression was expected
  </code></pre>