GSP
Quick Navigator

Search Site

Unix VPS
A - Starter
B - Basic
C - Preferred
D - Commercial
MPS - Dedicated
Previous VPSs
* Sign Up! *

Support
Contact Us
Online Help
Handbooks
Domain Status
Man Pages

FAQ
Virtual Servers
Pricing
Billing
Technical

Network
Facilities
Connectivity
Topology Map

Miscellaneous
Server Agreement
Year 2038
Credits
 

USA Flag

 

 

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

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

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

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)

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.
A negative value indicates that this result is still uncertain
A zero value indicates the first occurance of this result with high confidence
A positive value indicates a duplicate scan

Bar code type "symbology" constants:
NONE
PARTIAL
EAN13
EAN8
UPCA
UPCE
ISBN10
ISBN13
I25
CODE39
CODE128
QRCODE
PDF417

Barcode::ZBar, Barcode::ZBar::Image
zbarimg(1), zbarcam(1)
http://zbar.sf.net

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

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.
2009-10-23 perl v5.28.1

Search for    or go to Top of page |  Section 3 |  Main Index

Powered by GSP Visit the GSP FreeBSD Man Page Interface.
Output converted with ManDoc.