barcode::zbar::imagescanner(3pm) [debian man page]

ZBar::ImageScanner(3pm) 				User Contributed Perl Documentation				   ZBar::ImageScanner(3pm)

NAME

       Barcode::ZBar::ImageScanner - scan images for bar codes

SYNOPSIS

	   use Barcode::ZBar;

	   my $scanner = Barcode::ZBar::ImageScanner->new();
	   $scanner->parse_config('i25.disable');
	   $scanner->scan_image($image);

DESCRIPTION

       A Barcode::ZBar::ImageScanner is used to scan for bar codes in a Barcode::ZBar::Image.

REFERENCE

   Methods
       new()
	   Create a new bar code image scanner instance.

       get_results()
	   Return a list of Barcode::ZBar::Symbol results from the last scanned image.

       scan_image([image])
	   Scan a Barcode::ZBar::Image for bar codes.  The image must be in the "Y800" format.	If necessary, use "$image->convert("Y800")" to
	   convert from other supported formats to Y800 before scanning.

       enable_cache([enable])
	   Enable the inter-image result consistency cache.

       parse_config(configstr)
	   Apply a decoder configuration setting.  See the documentation for "zbarcam"/"zbarimg" for available configuration options.

       recycle_image([image])
	   Remove previously decoded results from a Barcode::ZBar::Image and recycle the associated memory.

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 v5.14.2							    2009-10-23						   ZBar::ImageScanner(3pm)

Barcode::COOP2of5(3pm)					User Contributed Perl Documentation				    Barcode::COOP2of5(3pm)

NAME

       GD::Barcode::COOP2of5 - Create COOP2of5 barcode image with GD

SYNOPSIS

       ex. CGI

	 use GD::Barcode::COOP2of5;
	 binmode(STDOUT);
	 print "Content-Type: image/png

";
	 print GD::Barcode::COOP2of5->new('1234567890')->plot->png;

       with Error Check

	 my $oGdBar = GD::Barcode::COOP2of5->new('A12345678');
	 die $GD::Barcode::COOP2of5::errStr unless($oGdBar);   #Invalid Characters
	 $oGdBar->plot->png;

DESCRIPTION

       GD::Barcode::COOP2of5 is a subclass of GD::Barcode and allows you to create COOP2of5 barcode image with GD.

   new
       $oGdBar = GD::Barcode::COOP2of5->new($sTxt);

       Constructor.  Creates a GD::Barcode::COOP2of5 object for $sTxt.	$sTxt has numeric characters([0-9]).

   plot()
       $oGd = $oGdBar->plot([Height => $iHeight, NoText => 0 | 1]);

       creates GD object with barcode image for the $sTxt specified at new method.  $iHeight is height of the image. If NoText is 1, the image has
       no text image of $sTxt.

	ex.
	 my $oGdB = GD::Barcode::COOP2of5->new('12345678');
	 my $oGD = $oGdB->plot(NoText=>1, Height => 20);
	 # $sGD is a GD image with Height=>20 pixels, with no text.

   barcode()
       $sPtn = $oGdBar->barcode();

       returns a barcode pattern in string with '1' and '0'.  '1' means black, '0' means white.

	ex.
	 my $oGdB = GD::Barcode::COOP2of5->new('12345678');
	 my $sPtn = $oGdB->barcode();

   $errStr
       $GD::Barcode::COOP2of5::errStr

       has error message.

   $text
       $oGdBar->{$text}

       has barcode text based on $sTxt specified in new method.

AUTHOR

       Kawai Takanori GCD00051@nifty.ne.jp

COPYRIGHT

       The GD::Barocde::COOP2of5 module is Copyright (c) 2000 Kawai Takanori. Japan.  All rights reserved.

       You may distribute under the terms of either the GNU General Public License or the Artistic License, as specified in the Perl README file.

SEE ALSO

       GD::Barcode

perl v5.12.3							    2003-05-29						    Barcode::COOP2of5(3pm)