Visually Similar Images

[drstrangelove]

Okay, how can these even be close? (Let's hope the link from Google Images works.)

https://www.google.ca/search?tbs=sb...SzeYVDnHcmiZWjZe5g7HnBDXd496NMDxp-jYg5x86GlYU

Not expecting to see this when checking BP pics.

 

[waba]

Lol!

 

[asuran]

The lighting, the color?
I'm assuming google is not trying to be precise with image searches. Unlike us searching with specific goals, the person making an image search may also be trying to search for similar pictures.

General thought is, if you already have the picture why would you still search for it. Hence the reason google is showing similar pictures instead of the 'exact' picture. They are just expanding your search a bit.
I'm sure somewhere there is an option to narrow your search parameters.

Edit: Yup, there is a 'Google Advanced Image Search' if you want to be more precise/exact.