Package com.google.zxing.oned

Class ITFReader

java.lang.Object

com.google.zxing.oned.OneDReader

com.google.zxing.oned.ITFReader

All Implemented Interfaces:

Reader

public final class ITFReader
extends OneDReader

Implements decoding of the ITF format, or Interleaved Two of Five.

This Reader will scan ITF barcodes of certain lengths only. At the moment it reads length 6, 8, 10, 12, 14, 16, 18, 20, 24, and 44 as these have appeared "in the wild". Not all lengths are scanned, especially shorter ones, to avoid false positives. This in turn is due to a lack of required checksum function.

The checksum is optional and is not applied by this Reader. The consumer of the decoded value will have to apply a checksum if required.

http://en.wikipedia.org/wiki/Interleaved_2_of_5 is a great reference for Interleaved 2 of 5 information.

Author:

kevin.osullivan@sita.aero, SITA Lab.

Constructor Summary

Constructors

Constructor	Description
ITFReader()

Method Summary

Modifier and Type	Method	Description
Result	decodeRow(int rowNumber, BitArray row, Map<DecodeHintType,?> hints)	Attempts to decode a one-dimensional barcode format given a single row of an image.

Methods inherited from class com.google.zxing.oned.OneDReader

decode, decode, patternMatchVariance, recordPattern, recordPatternInReverse, reset

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

ITFReader

public ITFReader()

Method Details

decodeRow

public Result decodeRow(int rowNumber,
 BitArray row,
 Map<DecodeHintType,?> hints)
                 throws FormatException,
NotFoundException

Description copied from class: OneDReader

Attempts to decode a one-dimensional barcode format given a single row of an image.

Specified by:

decodeRow in class OneDReader

Parameters:

rowNumber - row number from top of the row

row - the black/white pixel data of the row

hints - decode hints

Returns:

Result containing encoded string and start/end of barcode

Throws:

FormatException - if a potential barcode is found but format is invalid

NotFoundException - if no potential barcode is found