Options
All
  • Public
  • Public/Protected
  • All
Menu

Class ErrorCorrection

PDF417 error correction implementation.

This example is quite useful in understanding the algorithm.

author

Sean Owen

see

com.google.zxing.common.reedsolomon.ReedSolomonDecoder

Hierarchy

  • ErrorCorrection

Index

Constructors

Properties

Methods

Constructors

constructor

Properties

Private field

field: ModulusGF

Methods

decode

  • decode(received: Int32Array, numECCodewords: int, erasures: Int32Array): int
  • throws

    ChecksumException if errors cannot be corrected, maybe because of too many errors

    Parameters

    • received: Int32Array

      received codewords

    • numECCodewords: int

      number of those codewords used for EC

    • erasures: Int32Array

      location of erasures

    Returns int

    number of errors

Private findErrorLocations

  • findErrorLocations(errorLocator: ModulusPoly): Int32Array

Private findErrorMagnitudes

  • findErrorMagnitudes(errorEvaluator: ModulusPoly, errorLocator: ModulusPoly, errorLocations: Int32Array): Int32Array

Private runEuclideanAlgorithm

Generated using TypeDoc