Image Link

I am trying to link to an image in webroot/img folder but it always adds in the current controller / action

 

echo $this->Html->link(

                $this->Html->image($thumb['thumb'], array('fullBase' => true)), array(

                                $thumb['slide']), array(

'fullBase' => true, 'escape' => true, 'class' => 'thumb', 'rel' => 'gallery'));

 

Rather simple click on the thumb and display the large image.

 

But rather than getting to the folder it shows up as:

 

http://dev/gallery/view/img/large/2F41c84b3cecff0a43a73bd82d56458f79.jpg

 

How can I serve up images from webroot?

 

Thanks,

Dave