Use Google Picture search, drag and drop a Picture, url to a Picture and you will get search result like if you search with a word.
http://www.google.com/imghpSearch Google using images
Instead of typing words, you can use a picture as your search to find related images from around the web. For example, if you search using a picture of your favorite band, you can find similar images, websites about the band, and even sites that include the same picture.
Search by image works best when the image is likely to show up in other places on the web. So you’ll get more results for famous landmarks than you will for personal images like your latest family photo.
How to search
Option 1: Use an image from your computer
upload an image
camera icon
drag and drop
Option 2: Use an image from a website
copy image url
camera icon
Option 3: Right-click an image on a website (Chrome and Firefox)
What results look like
When you search by image, your results may include:
•Image results for images that are similar to yours
•Web results for pages that include matching images
•Other sizes of the image you searched for
Availability
You can search by image on the following browsers:
•Chrome 5+
•Internet Explorer 9+
•Safari 5+
•Firefox 4+
How Google uses the image you search with
When you search by image, any images or URLs that you upload will be stored by Google. Google uses those images and URLs solely to provide and improve our products and services