Deff, вот мой простой пример
<script src="http://code.jquery.com/jquery-1.8.3.min.js"></script>
<img class="img" src="http://www.gog.com/upload/images/2013/06/4a97d96f01382e2d3de6435cc9bf4134bf21c62c.jpg">
<script>
jQuery(function ($) {
var img = $(".img").eq(0);
var int = setInterval(function () {
console.log(img.height());
}, 1);
});
</script>