Cannot Copy Image with Varying URL from Webpage

Hi there, ive been looking all over the internet for answers to my problem but could find none.

I need to be able to copy a specific graph, in the form of an image, from a web page. This image always has the same name, "itmu-cpu-generic-lastweek." I already have to code to create an instance of internet explorer and go to the page, but cannot find how to copy that one image and not the whole web page.

I guess it does not really matter if it is copied to the clipboard or saved to the computer, as long as it is on my computer so that excel may grab it and throw it into a cell. Any help will be greatly appreciated