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, UPC, Code 128, Code 39 and Interleaved 2 of 5.
These are the bindings for interacting directly with the library from Perl.
REFERENCE¶
Functions¶
- version()
- Returns the version of the zbar library as
"major.minor".
- increase_verbosity()
- 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)
- 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
- Dark area or colored bar segment.
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 2008-2009 (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.