At images.google.com, it allows you to "search by image", and either enter an image url or upload an image from your own computer. Google attempts to find other instances of that image online. (It's useful for finding the original source of an image, or other sizes, etc.)
I'm wondering if it's possible to use Alfred (or potentially some other scripting solution?) to select an image in the Finder, and use that as an uploaded image in the Google search.
I've done a little more digging, and I think it's not possible. Based on this post http://stackoverflow.com/questions/7584808/google-ima