I think by now, we've all heard about TinEye, the reverse image search feature where you upload an image or type in a URL pointing to an image and it will show you all the places where that image has been used in the past or is currently being used on the Internetz.
And I'm sure you've all used Google Images to find that neat and great-looking image to use on your next blog post to spice it up a bit, but do you know...
How to identify an image using the Google Image search box? You can actually drag and drop a photograph you took or one that is in your collection directly into the Google Image search box and it will bring up on web pages containing that image.
Google has already let the cat out of the bag. You can follow along with their directions from their Google Image site. Here is a screenshot telling you how you can drag your image directly into the search box. (Remember you can click on any image to make it bigger, then click the back button in your browser to go back to the blog post).
I am not quite sure how exactly Google Images does this. But I can tell you that it doesn't seem to have a strong aspect of facial recognition because when I put random pictures of myself in the search box, it came up blank. One of my end of semester projects will be on exactly how queries are processed based on images submitted to a search box, so I might be able to answer this better come Christmas time. In the mean time try it out. Submit your photos of heirlooms, ancestors, and the cool stuff you see while on vacation and let me know about your experience!
Oh and feel free to share, tweet, etc. You know the drill!