You can fetch the image url with javascript and print it as an img tag..
I can’t say for sure how to get the image url since I cant see your setup in admin but try to figure out how to get it by:
var imgURL = $('your image object').attr('href');
//Then print it in your popup doing something like this (again, you'll have to change the target object to be correct
$('target object popup').append('<img src="' + imgURL + '" alt="" class="targetimage" />');
