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08 Feb 2022 16:15:02 UTC
- Distribution: Barcode-ZBar
- Module version: 0.10
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Bus factor: 1- % Coverage
- License: lgpl_2_1
- Perl: v5.6.0
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NAME
Barcode::ZBar - Perl interface to the ZBar Barcode Reader
SYNOPSIS
setup:
use Barcode::ZBar; my $reader = Barcode::ZBar::Processor->new(); $reader->init(); $reader->set_data_handler(\&my_handler);
scan an image:
my $image = Barcode::ZBar::Image->new(); $image->set_format('422P'); $image->set_size(114, 80); $image->set_data($raw_bits); $reader->process_image($image);
scan from video:
$reader->set_visible(); $reader->set_active(); $reader->user_wait();
collect results:
my @symbols = $image->get_symbols(); foreach my $sym (@symbols) { print("decoded: " . $sym->get_type() . ":" . $sym->get_data()); }
DESCRIPTION
The ZBar Bar Code Reader is a library for scanning and decoding bar codes from various sources such as video streams, image files or raw intensity sensors. It supports EAN-13/UPC-A, UPC-E, EAN-8, Code 128, Code 93, Code 39, Codabar, Interleaved 2 of 5 and QR Code.
These are the bindings for interacting directly with the library from Perl.
REFERENCE
Functions
- version()
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Returns the version of the zbar library as "major.minor".
- increase_verbosity()
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Increases global library debug by one level.
- set_verbosity(level)
-
Sets global library debug to the indicated level. Higher numbers give more verbosity.
- parse_config(configstr)
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Parse a decoder configuration setting into a list containing the symbology constant, config constant, and value to set. See the documentation for
zbarcam
/zbarimg
for available configuration options.
Constants
Width stream "color" constants:
- SPACE
-
Light area or space between bars.
- BAR
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Dark area or colored bar segment.
Decoder configuration constants:
- Config::ENABLE
- Config::ADD_CHECK
- Config::EMIT_CHECK
- Config::ASCII
- Config::MIN_LEN
- Config::MAX_LEN
- Config::POSITION
- Config::X_DENSITY
- Config::Y_DENSITY
Symbology modifier constants:
Symbol orientation constants:
SEE ALSO
Barcode::ZBar::Processor, Barcode::ZBar::ImageScanner, Barcode::ZBar::Image, Barcode::ZBar::Symbol, Barcode::ZBar::Scanner, Barcode::ZBar::Decoder
zbarimg(1), zbarcam(1)
http://zbar.sf.net
AUTHOR
Jeff Brown, <spadix@users.sourceforge.net>
COPYRIGHT AND LICENSE
Copyright 2008-2010 (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.
Module Install Instructions
To install Barcode::ZBar, copy and paste the appropriate command in to your terminal.
cpanm Barcode::ZBar
perl -MCPAN -e shell install Barcode::ZBar
For more information on module installation, please visit the detailed CPAN module installation guide.