How to scan and OCR like a pro with open source tools

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06-24-2008

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How to scan and OCR like a pro with open source tools

Tue, 24 Jun 2008 18:00:00 GMT
With optical character recognition (OCR), you can scan the contents of a document into a single file of editable text. This article, which focuses on scanning books, describes the steps you need to take to prepare pages for optimal OCR results, and compares various free OCR tools to determine which is the best at extracting the text.

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Developing Open Source tools

Hi Gurus, I am very much interested in developing and publishing a small piece of open source code which would be the best place to start off. I am just a beginner in unix ,c. Please provide me some suggestions. Thanks.

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mdns-scan

MDNS-SCAN(1)						      General Commands Manual						      MDNS-SCAN(1)

NAME

       mdns-scan - Scan for mDNS/DNS-SD services published on the local network

SYNOPSIS

       mdns-scan

DESCRIPTION

       mdns-scan  is  a  tool  for  scanning for mDNS/DNS-SD published services on the local network. It issues a mDNS PTR query to the special RR
       _services._dns-sd._udp.local for retrieving a list of all currently registered services on the local link.

OPTIONS

       mdns-scan has no commandline options.

NOTES

       mdns-scan is not a good mDNS citizen since it queries continuously for services and doesn't implement features like Duplicate  Suppression.
       It is intended for usage as a debugging tool only.

       mdns-scan  is incomplete since it doesn't resolve mDNS services for you - it just dumps their PTR RRs. To understand these records you need
       minimal knowledge of DNS-SD and how it works.

       mdns-scan does not terminate on its own behalf. It scans for services continuously until the user kills it by pressing C-c.

       mdns-scan does not rely on a local mDNS responder daemon. It has no dependencies besides the GNU libc. It has been tested on Linux only.

       mdns-scan does NOT scan for local mDNS enabled hosts or A/AAAA RRs, it scans for DNS-SD registered services, nothing else.

SEE ALSO

       mDNSResponder(8)

AUTHOR

       mdns-scan has been written by Lennart Poettering <mzqrovna@0pointer.de>

0.4								   Jan 21, 2004 						      MDNS-SCAN(1)

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