A lot of us may have passed thru such ideas, but this is a simple idea executed well. The last time I had such an idea, I was wondering how Google used machine

A lot of us may have passed thru such ideas, but this is a simple idea executed well. The last time I had such an idea, I was wondering how Google used machines to scan library books for their Google Book Search project. I heard that those machines were HP ones. Machines that scan books page by page and converts those into text(ofcourse since it has to be searchable). Always wondered how the text in images was reconised. If such technologies that can recognise text are already here, then its not going to be very soon when captchas will be rendered totally useless.