Startup Idea : Search your Screenshots

I had this idea a few years back. Can we develop a search engine that scans the text in image. Problem- For eg- when using instagram u might find many quotes that you like. So, you just took screenshot of that quote. Now at some instance after awhile you don't remember the exact quote but you know its keyword. Now you open your screenshots and its difficult to find that thing. Solution- Why not create an App that can search text in the images that you have in your phone. By this you can easily find that quote again.