Google Goggles is a downloadable image recognition application.
Google Goggles lets you use pictures taken with your mobile phone to search the web. It's ideal for things that aren't easy to describe in words.
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Try taking pictures of books & DVDs, landmarks, barcodes & QR codes, logos, contact info, artwork, businesses, products, or text; it can recognize up to three items at a time. Google Goggles is a fantastic tool for tourists, art gallery enthusiasts, people who love to read good books...
The best position to take pictures of images is the left landscape.
Google is currently working to make the system able to recognise different plants and leaves, which can aid curious persons, those wishing to avoid toxic plants, and botanists and environmentalists searching for rare plants.