com.google.zxing.pdf417
Class PDF417Reader

java.lang.Object
  com.google.zxing.pdf417.PDF417Reader

All Implemented Interfaces:

Reader

public final class PDF417Reader
extends Object
implements Reader

This implementation can detect and decode PDF417 codes in an image.

Since:

BlackBerry API 6.0.0

Constructor Summary

PDF417Reader()

Method Summary
Result	decode(BinaryBitmap image) Locates and decodes a PDF417 code in an image.
Result	decode(BinaryBitmap image, Hashtable hints) Locates and decodes a barcode in some format within an image.
static BitMatrix	extractPureBits(BitMatrix image) This method detects a code in a "pure" image -- that is, pure monochrome image which contains only an unrotated, unskewed, image of a code, with some white border around it.

Methods inherited from class java.lang.Object

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

Constructor Detail

PDF417Reader

public PDF417Reader()

Since:

BlackBerry API 6.0.0

Method Detail

decode

public Result decode(BinaryBitmap image)
              throws NotFoundException,
                     FormatException

Locates and decodes a PDF417 code in an image.

Specified by:

decode in interface Reader

Parameters:

image - image of barcode to decode

Returns:

a String representing the content encoded by the PDF417 code

Throws:

NotFoundException - if a PDF417 code cannot be found,

FormatException - if a PDF417 cannot be decoded

Since:

BlackBerry API 6.0.0

decode

public Result decode(BinaryBitmap image,
                     Hashtable hints)
              throws NotFoundException,
                     FormatException

Description copied from interface: Reader

Locates and decodes a barcode in some format within an image. This method also accepts hints, each possibly associated to some data, which may help the implementation decode.

Specified by:

decode in interface Reader

Parameters:

image - image of barcode to decode

hints - passed as a Hashtable from DecodeHintType to arbitrary data. The meaning of the data depends upon the hint type. The implementation may or may not do anything with these hints.

Returns:

String which the barcode encodes

Throws:

NotFoundException - if the barcode cannot be located or decoded for any reason

FormatException

Since:

BlackBerry API 6.0.0

extractPureBits

public static BitMatrix extractPureBits(BitMatrix image)
                                 throws NotFoundException

This method detects a code in a "pure" image -- that is, pure monochrome image which contains only an unrotated, unskewed, image of a code, with some white border around it. This is a specialized method that works exceptionally fast in this special case.

Throws:

NotFoundException

See Also:

QRCodeReader.extractPureBits(BitMatrix), DataMatrixReader.extractPureBits(BitMatrix)

Since:

BlackBerry API 7.0.0