Referencing an image defined in content front matter from a template

In my themes/hugo-future-imperfect/layouts/itemized/header.html file (or rather, in some overriding version of it somewhere under the layouts directory) I want to reference an image that I defined like this in the front matter of an md of blog content:

images = ["/img/main/myImage.png"]

Basically, I want to end up with something like this in the HTML that the server ultimately sends to browsers:

<img src="img/main/myImage.png"/> 

Can someone tell me what to put in my template to achieve this?