Free Google links pure whitehat

Well guys dont know if anybody has noticed this but, the google image search engine gives automatic backlinks once it has indexed the picture, now before you ask, all you have to do is upload the pictures to your website directory, wait for them to be picked up by google, then A you get free links , and B you get some trafic

http://images.google.co.uk/imghp?hl=en&tab=wi