Reverse image recognition algorithm - connect to online images database

Hello,

First, my programming skills are pretty basic so I apologise in advance if my question is a bit not focused / complete but your assistance here will be great!

For over 5 months now, my friend is developing a reverse image recognition algorithm in c. The concept is simple, we upload an image query and the algorithm scan our images database (around 2mil images) and search for identical images.

We would like to connect the algorithm with an online images database (like Google images or others) in order to continue experimenting with our algorithm and see how it works on a real online database.

My question is whether such thing is even possible? (via Google Images API or any other API) Additionally, how complex is the integration process of the algorithm we have at the moment written in c with an online database of images?

many thanks for all the helpers!

Regards,

Word for word identical with Reverse Image Recognition Algorithm - Connect To Online Images Databas - Java | Dream.In.Code

Except for the change of programming language.

Your 'friend' is very industrious to implement the same thing in multiple languages at the same time.