In one of my previous posts, we had seen reverse image search engine.
Now this time, we will see a new addition to Google labs called Similar Images. It allows user to search similar images using pictures. e.g. If you try to search for ‘Golden Temple’ using Similar Images, it will display images along with ‘Similar images’ link underneath each image listed in search. Upon clicking this link, it will try to search images similar to the one which you have selected while clicking ‘Similar Images’ link.
Just remember, it is currently listed on Google Labs and experimental.