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ZBar::Symbol(3)	      User Contributed Perl Documentation      ZBar::Symbol(3)

NAME
       Barcode::ZBar::Symbol - bar code	scan result object

SYNOPSIS
	   my @symbols = $image->get_symbols();
	   foreach my $sym (@symbols) {
	       print("decoded: " . $sym->get_type() .
		     ":" . $sym->get_data().
		     "(" . $sym->get_count() . ")");
	   }

DESCRIPTION
       Barcode::ZBar::Symbol objects are constant results returned for each
       bar code	scanned	from images or video.  This object wraps the raw
       symbol data with	additional information about the decode	(symbology,
       confidence, location, etc)

REFERENCE
   Methods
       get_type()
	   The type of bar code	"symbology" from which the data	was decoded.

       get_data()
	   The decoded data string.  Note that some symbologies	can encode
	   binary data.

       get_quality()
	   Confidence metric.  An unscaled integer value that indicates
	   something (intentionally unspecified) about the reliability of this
	   result relative to another.	Larger values are better than smaller
	   values, where "large" and "small" are application dependent.
	   Expect this definition to become more specific as the metric	is
	   enhanced.

       get_count()
	   Current cache count of the symbol.  This integer value provides
	   inter-scan reliability and redundancy information if	enabled	at the
	   Barcode::ZBar::ImageScanner.

       get_components()
	   Components of a composite result.  This yields an array of physical
	   component symbols that were combined	to form	a composite result.

	   o A negative	value indicates	that this result is still uncertain

	   o A zero value indicates the	first occurance	of this	result with
	     high confidence

	   o A positive	value indicates	a duplicate scan

   Constants
       Bar code	type "symbology" constants:

       NONE
       PARTIAL
       EAN13
       EAN8
       UPCA
       UPCE
       ISBN10
       ISBN13
       I25
       CODE39
       CODE128
       QRCODE
       PDF417

SEE ALSO
       Barcode::ZBar, Barcode::ZBar::Image

       zbarimg(1), zbarcam(1)

       http://zbar.sf.net

AUTHOR
       Jeff Brown, <spadix@users.sourceforge.net>

COPYRIGHT AND LICENSE
       Copyright 2008-2009 (c) Jeff Brown <spadix@users.sourceforge.net>

       The ZBar	Bar Code Reader	is free	software; you can redistribute it
       and/or modify it	under the terms	of the GNU Lesser Public License as
       published by the	Free Software Foundation; either version 2.1 of	the
       License,	or (at your option) any	later version.

perl v5.24.1			  2009-10-23		       ZBar::Symbol(3)

NAME | SYNOPSIS | DESCRIPTION | REFERENCE | SEE ALSO | AUTHOR | COPYRIGHT AND LICENSE

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