, Designed to ensure that computer users are human (usually to protect websites from bots) and at the same time support the digitization of books. reCAPTCHA was originally developed by Louis von Ahn, Ben Morrer, Colin Macmillan, David Abraham and Manuel Blum on the main Pittsburgh campus of Carnegie Mellon University. It was acquired by Google in September 2009.
Or from Automatic Programs, which are usually written to generate spam. No computer program can read as many pictures as people can, so Bots cannot navigate secure sites with CAPTCHA.
About 60 million CAPTCHAs are solved daily by people around the world. Each case takes approximately ten seconds to complete. It doesn't take long, but overall these little puzzles work over 150,000 hours every day. CAPTCHA, a Google management project, is exactly what CAPTCHA is trying to turn into "reading" books over the Internet.
OCR Proofreaders who distributed the first project volunteered time to understand the scanned text that could not be read. It works with Project Gutenberg to digitize public domain information and uses different methods than reCAPTCHA. The ReCAPTCHA program was started with Guatemalan computer scientist Louis von Ahn and supported by the MacArthur membership. An early Captcha developer, he "unknowingly realized that ten-second increments created a system that would throw away the wheels of the human brain, a valuable resource worth millions of hours."
reCAPTCHA completed the digitization of the archives of the New York Times and the books of Google Books by 2011. The archives can be found in the New York Times Archives, which has preserved more than 13 million articles from 1851 to the present. With public support, by 2015 reCAPTCHA helped digitize books that could not be scanned by computers, as well as translate books into multiple languages.
Facebook, TicketMaster, Twitter, 4Chan, CNN.com, StumbleUpon, Craigslist (since June 2008), and the U.S. National Telecommunications and Information Administration's Digital TV Translator Box Coupon Program website (as part of the U.S. DTV Transition).
The slogan of reCAPTCHA was "Stop Spam, Read books". The slogan is now missing from the website and the classic version of the reCAPTCHA plugin. A new system including image verification was also introduced. In this system, users are asked to click on a check box (to verify whether the user is a human or not.) So I hope you all have a good understanding of reCAPTCHA.