bionic (1) zbarimg.1.gz

Provided by: zbar-tools_0.10+doc-10.1build2_amd64 bug

NAME

       zbarimg - scan and decode bar codes from image file(s)

SYNOPSIS

       zbarimg [-qv] [--quiet] [--verbose[=n]]
               {-dD | --display | --nodisplay | --xml | --noxml | -S[symbology.]config[=value] |
               --set [symbology.]config[=value] | image...}

       zbarimg {-h | --help | --version}

DESCRIPTION

       For each specified image file zbarimg scans the image for bar codes and prints any decoded data to
       stdout. Images may optionally be displayed to the screen.

       The underlying library currently supports EAN-13 (including UPC and ISBN subsets), EAN-8, Code 128, Code
       39, and Interleaved 2 of 5 symbologies. The specific type of each detected symbol is printed with the
       decoded data.

       Note that "image" in this context refers to any format supported by ImageMagick, including many vector
       formats such as PDF and PostScript. Keep in mind that vector formats are rasterized before scanning;
       manually rasterize vector images before scanning to avoid unintentionally corrupting embedded barcode
       bitmaps.

OPTIONS

       This program follows the usual GNU command line syntax. Single letter options may be bundled, long
       options start with two dashes (`-´).

       -h, --help
           Print a short help message describing command line options to standard output and exit

       --version
           Print program version information to standard output and exit

       -v, --verbose[=n]
           Increase debug output level. Multiple -v options create more spew. Alternatively specify n to set the
           debug level directly

       -S[symbology.]config[=value], --set [symbology.]config[=value]
           Set decoder configuration option config for symbology to value.  value defaults to 1 if omitted.
           symbology is one of ean13, ean8, upca, upce, isbn13, isbn10, i25, code39, code128 or the special
           value *. If symbology is omitted or *, the config will be set for all applicable symbologies. These
           are the currently recognized configs. Prefix a config with "no-" to negate it. Not all configs are
           appropriate for every symbology.

           enable
               Control decoding/reporting of a symbology. For symbologies which are just subsets of ean13 (upca,
               upce, isbn13, isbn10), this config controls whether the subsets are detected and reported as
               such. These special cases are disabled by default, all other symbologies default to enabled

           disable
               Antonym for enable

           emit-check
               Control whether check digits are included in the decoded output. Enabled by default. This config
               does not apply for code128, which never returns the check digit. It also not apply for cases
               where the check digit is disabled (see add-check). Check digits are currently not implemented for
               i25 or code39

           add-check
               Enable decode and verification of a check digit for symbologies where it is optional: this will
               include code39 and i25, neither of which implements the check digit yet

           ascii
               Enable escape sequences that encode the full ASCII character set. This would apply to code39,
               except that it´s not implemented either...

           position
               Enable collection of symbol position information. Enabled by default. Currently, the position
               information is unusable, so you can save a few cycles by disabling this.

           min-length=n, max-length=n
               Bound the number of decoded characters in a valid symbol. If a decode result is outside the
               configured min/max range (inclusive), it will not be reported. Set to 0 to disable the
               corresponding check. This setting applies to variable-length symbologies: i25, code39, code128
               and pdf417.  min-length defaults to 6 for i25 and 1 for code39 (per Code 39 autodiscrimination
               recommendation); all others default to 0

           x-density=n, y-density=n
               Adjust the density of the scanner passes. Lower values scan more of the image at the cost of
               decreased performance. Setting to 0 disables scanning along that axis. Defaults are both 1.

       -q, --quiet
           Quiet operation; only output decoded symbol data. specifically this disables the statistics line
           printed (to stderr) before exiting, as well as the warning message printed (also to stderr) when no
           barcodes are found in an image

       -d, --display, -D, --nodisplay
           Enable/disable display of subsequent image files, until next --display or --nodisplay is encountered.
           This option may appear multiple times to enable display of specific images. Image display is disabled
           by default

       --xml, --noxml
           Enable/disable result output using an XML format. This format wraps the raw data from the symbol with
           information about the scan (such as page indices) in an easy to parse format. The latest schema is
           available from http://zbar.sourceforge.net/2008/barcode.xsd.

       --raw
           Enable raw symbol data output. This format prints symbol data separated by newlines without the
           additional symbology type information that is printed by default

EXAMPLES

       Scan a PNG image of a UPC bar code symbol and pass resulting data to a script that searches for the code
       in a database and does something useful with it:

           zbarimg product.png | upcrpc.py

       The upcrpc.py example script included in the examples/ subdirectory of the distribution will make an
       XMLRPC call to a popular internet UPC database and print the product description if found.

       Scan a JPEG image containing several barcodes and display the image in a window, also disabling
       recognition of Interleaved 2 of 5 codes to prevent confusion with other symbologies or background noise:

           zbarimg --display -Si25.disable label.jpg

       Look in a scanned document only for Code 39, using XML output format so the page numbers are available.
       To enable only Code 39, first all symbologies are disabled, then Code 39 is re-enabled:

           zbarimg --xml -Sdisable -Scode39.enable scan.tiff

SEE ALSO

       zbarcam(1)

       http://zbar.sf.net/

BUGS

       See http://sf.net/tracker/?group_id=189236&atid=928515

AUTHOR

       Jeff Brown <spadix@users.sourceforge.net>
           Lead developer

       Copyright © 2007-2009 Jeff Brown

       All Rights Reserved