As you all know Google is attempting to digitize all the printed material available. Google uses OCR to make the printed material to be readable by the search engine crawlers.This means that the scanned page doesn't appear as an image to the search engine. The words can be deciphered and so keywords etc...can be used in the same way as they would for web documents.
How OCR can help common people?
Suppose you have written something all over a whiteboard and then realised that this is good stuff and you want to keep it all, but it's too much to write out? Did you get your camera or mobile out and take a photo? This is where OCR can really be efficient, you could it into your computer and it would still be able to read the text (of course if the handwriting and pattern recognition is also included).
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