ErrorCorrection

java.lang.Object
- com.google.zxing.pdf417.decoder.ec.ErrorCorrection

```
public final class ErrorCorrection
extends java.lang.Object
```
PDF417 error correction implementation.

This example is quite useful in understanding the algorithm.

See Also:

ReedSolomonDecoder

- Constructor Summary
  
  Constructors
  Constructor Description
  
  ErrorCorrection()
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  int decode(int[] received, int numECCodewords, int[] erasures)
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - ErrorCorrection
```
public ErrorCorrection()
```
- Method Detail
  - decode
```
public int decode(int[] received,
                  int numECCodewords,
                  int[] erasures)
           throws ChecksumException
```
    Parameters:
    
    received - received codewords
    
    numECCodewords - number of those codewords used for EC
    
    erasures - location of erasures
    
    Returns:
    
    number of errors
    
    Throws:
    
    ChecksumException - if errors cannot be corrected, maybe because of too many errors