The bardecode command provides an interface to the barcode reader toolkit from the shell. For example, the following command will scan an image file for barcodes and print the values:<\/p>\n
bardecode -t any -m -f somefile.tif<\/strong><\/p>\n Options are flags such as -m, which may or may not take an argument options are:<\/p>\n The long options give access to all the features of the toolkit.<\/p>\n Supported long options properties are: AllowDuplicateValues, Code39Checksum, Please refer to the product documentation for descriptions and appropriate Rectangle argument:<\/p>\n The top left hand corner of an image is the origin and (x1,y1) (x2,y2) define the XML Input and Output<\/p>\n Settings and results can be stored in XML format. Multiple layers of settings Examples:<\/p>\n Scan for a Code 39 barcode in a portrait orientation image:<\/p>\n bardecode -f file.tif -t code39 -d 5<\/p>\n Using long options:<\/p>\n bardecode -f file.tif –ReadCode39=1 –ScanDirection=5<\/p>\n Scan for a Code 39 barcode in a landscape orientation image:<\/p>\n bardecode -f file.tif -t code39 -d 10<\/p>\n Scan for a Code 128 or UPC-A barcode in an image of poor quality:<\/p>\n bardecode -n 20 -f file.tif -t “code128|upca”<\/p>\n Split a multi-page TIF file into smaller files, each with a barcode on page 1<\/p>\n bardecode -t code39 -m -S output%d.tif -f multipage.tif<\/p>\n","protected":false},"excerpt":{"rendered":" The bardecode command provides an interface to the barcode reader toolkit from the shell. For example, the following command will scan an image file for barcodes and print the values: bardecode -t any -m -f somefile.tif Options are flags such as -m, which may or may not take an argument long options are property name<\/p>\n
\nlong options are property name and value pairs, such as –MinSpaceBarWidth=2<\/p>\n\n\n
\n -C max_length<\/td>\n Maximum length of barcode<\/td>\n<\/tr>\n \n -c min_length<\/td>\n Minimum length of barcode<\/td>\n<\/tr>\n \n -d scan_direction<\/td>\n Scan direction mask 1 = Left to Right, 2 = Top to Bottom 4 = Right to Left and 8 = Bottom to Top. default is 15. The scan direction mask controls the directions in which the barcode reader will look for a barcode. With this version it it now possible to scan for barcodes in any rotation with one call to the reader.<\/td>\n<\/tr>\n \n -f image_file<\/td>\n image_file can be of type TIF or JPG. JPG files must use the extension “.jpg” or “.jpeg”<\/td>\n<\/tr>\n \n -g<\/td>\n Process files and folders from the XML file specified with<\/td>\n<\/tr>\n \n <\/td>\n -x flag. See below for more details.<\/td>\n<\/tr>\n \n -i page_index<\/td>\n Page number of image indexed from 1<\/td>\n<\/tr>\n \n -j jump<\/td>\n Frequency at which scan lines are sampled, default is 1<\/td>\n<\/tr>\n \n -k skew tolerance<\/td>\n Skew tolerance 0 = off to 5 = any angle<\/td>\n<\/tr>\n \n -L oversample_sep<\/td>\n Distance between the line samples when over-sampling is used. Default value is 3.<\/td>\n<\/tr>\n \n -M min_space_width<\/td>\n Minimum allowed size in pixels for a space between bars<\/td>\n<\/tr>\n \n -m<\/td>\n Scan for multiple barcodes<\/td>\n<\/tr>\n \n -N noise_reduction<\/td>\n Advanced Noise Reduction (0 = off, typical value is 20)<\/td>\n<\/tr>\n \n -n noise_reduction<\/td>\n Noise Reduction level (0 = off, typical value is 20)<\/td>\n<\/tr>\n \n -O<\/td>\n Sample the scan lines in blocks of 3 with each line separated by oversample_sep lines (see below).<\/td>\n<\/tr>\n \n -o min_occurs<\/td>\n Minimum number of matching scan lines, default 2<\/td>\n<\/tr>\n \n -P<\/td>\n Show page numbers<\/td>\n<\/tr>\n \n -p pref_occurs<\/td>\n Preferred number of matching scan lines, default 5<\/td>\n<\/tr>\n \n -q quiet_size<\/td>\n Number of pixels wide for the quiet zone around bar code<\/td>\n<\/tr>\n \n -R pattern<\/td>\n Barcodes must match regular expression defined by pattern -r x1,y1,x2,y2,m<\/td>\n Rectangle for scanning (see below for details)<\/td>\n<\/tr>\n \n -S file_template:<\/td>\n Split a multi-page TIF file into smaller TIF files.<\/td>\n<\/tr>\n \n <\/td>\n The first page of each new file will contain a barcode<\/td>\n<\/tr>\n \n <\/td>\n The template must include %d to index the files<\/td>\n<\/tr>\n \n <\/td>\n e.g. file%d.tif. Must be used with -m flag.<\/td>\n<\/tr>\n \n -T color_threshold<\/td>\n Set the color threshold<\/td>\n<\/tr>\n \n -t barcode_types<\/td>\n Specifies the types of barcodes to read, barcode_types is one or more of “code39”, “code128”, “upca”, “upce”, “ean8”, “code25”, “ean13” and “codabar” joined together with the | character.<\/td>\n<\/tr>\n \n -t any<\/td>\n Searches for a barcode of any type e.g “code39|code128”<\/td>\n<\/tr>\n \n -u upper_ratio<\/td>\n Defunct flag<\/td>\n<\/tr>\n \n -w<\/td>\n Print TIF Warnings to STDERR<\/td>\n<\/tr>\n \n -X xml_output<\/td>\n Output results to specified XML file (see below)<\/td>\n<\/tr>\n \n -x xml_input<\/td>\n Load settings from specified XML file (see below)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\nCode39NeedStartStop, ColorThreshold, ConvertEAN13ToUPCE, Debug, Despeckle,
\nErrorCorrection, ExtendedCode39, LineJump, MaxLength, MedianFilter, MinLength,
\nMinOccurrence, MinSeparation, MinSpaceBarWidth, MultipleRead, NoiseReduction
\nOverSamplingSeparation, PrefOccurrence, QuietZoneSize, PageNo, Pattern,
\nReadCodabar, ReadCode128, ReadCode25, ReadCode25ni, ReadCode39,ReadDataMatrix
\nReadEAN8, ReadEAN13, ReadNumeric, ReadPatchCodes, ReadPDF417, ReadUPCA
\nReadUPCE, ScanDirection, ShowCheckDigit, SkewTolerance, TifSplitMode
\nTifSplitPath and UseOverSampling.<\/p>\n
\nvalues.<\/p>\n
\ntop left and bottom right corners of the rectangle to be searched – with the
\nmeasurements taken in either pixels or a percentage of the width\/height of the image.
\nIf m = 0 then the units are pixels and if m = 1 then the units are as a percentage.
\nExample: To search top right hand quarter of an image use -m50,0,100,50,1<\/p>\n
\ncan be specified, with the toolkit trying each successive layer until a barcode
\nis found. For more details please refer to the manual pages for LoadXMLSettings
\nand SaveResults. If the -g flag is also used then any files or folders specified
\nin the input file are processed, as described in the manual page for ProcessXML.<\/p>\n