/// <summary>
/// Decodes the specified detector result.
/// </summary>
/// <param name="detectorResult">The detector result.</param>
/// <returns></returns>
public DecoderResult decode(AztecDetectorResult detectorResult)
{
ddata = detectorResult;
var matrix = detectorResult.Bits;
var rawbits = extractBits(matrix);
if (rawbits == null)
{
return(null);
}
var correctedBits = correctBits(rawbits);
if (correctedBits == null)
{
return(null);
}
var result = getEncodedData(correctedBits.correctBits);
if (result == null)
{
return(null);
}
var rawBytes = convertBoolArrayToByteArray(correctedBits.correctBits);
var decoderResult = new DecoderResult(rawBytes, correctedBits.correctBits.Length, result, null, String.Format("{0}", correctedBits.ecLevel));
return(decoderResult);
}
/// <summary>
/// Decodes the specified detector result.
/// </summary>
/// <param name="detectorResult">The detector result.</param>
/// <returns></returns>
public DecoderResult decode(AztecDetectorResult detectorResult)
{
ddata = detectorResult;
var matrix = detectorResult.Bits;
var rawbits = extractBits(matrix);
if (rawbits == null)
{
return(null);
}
var correctedBits = correctBits(rawbits);
if (correctedBits == null)
{
return(null);
}
var result = getEncodedData(correctedBits);
if (result == null)
{
return(null);
}
var rawBytes = convertBoolArrayToByteArray(correctedBits);
return(new DecoderResult(rawBytes, result, null, null));
}
/// <summary>
/// Decodes the specified detector result.
/// </summary>
/// <param name="detectorResult">The detector result.</param>
/// <returns></returns>
public DecoderResult decode(AztecDetectorResult detectorResult)
{
ddata = detectorResult;
BitMatrix matrix = detectorResult.Bits;
bool[] rawbits = extractBits(matrix);
if (rawbits == null)
{
return(null);
}
bool[] correctedBits = correctBits(rawbits);
if (correctedBits == null)
{
return(null);
}
String result = getEncodedData(correctedBits);
if (result == null)
{
return(null);
}
return(new DecoderResult(null, result, null, null));
}
public void testDecodeTooManyErrors()
{
var matrix = BitMatrix.parse(""
+ "X X . X . . . X X . . . X . . X X X . X . X X X X X . \n"
+ "X X . . X X . . . . . X X . . . X X . . . X . X . . X \n"
+ "X . . . X X . . X X X . X X . X X X X . X X . . X . . \n"
+ ". . . . X . X X . . X X . X X . X . X X X X . X . . X \n"
+ "X X X . . X X X X X . . . . . X X . . . X . X . X . X \n"
+ "X X . . . . . . . . X . . . X . X X X . X . . X . . . \n"
+ "X X . . X . . . . . X X . . . . . X . . . . X . . X X \n"
+ ". . . X . X . X . . . . . X X X X X X . . . . . . X X \n"
+ "X . . . X . X X X X X X . . X X X . X . X X X X X X . \n"
+ "X . . X X X . X X X X X X X X X X X X X . . . X . X X \n"
+ ". . . . X X . . . X . . . . . . . X X . . . X X . X . \n"
+ ". . . X X X . . X X . X X X X X . X . . X . . . . . . \n"
+ "X . . . . X . X . X . X . . . X . X . X X . X X . X X \n"
+ "X . X . . X . X . X . X . X . X . X . . . . . X . X X \n"
+ "X . X X X . . X . X . X . . . X . X . X X X . . . X X \n"
+ "X X X X X X X X . X . X X X X X . X . X . X . X X X . \n"
+ ". . . . . . . X . X . . . . . . . X X X X . . . X X X \n"
+ "X X . . X . . X . X X X X X X X X X X X X X . . X . X \n"
+ "X X X . X X X X . . X X X X . . X . . . . X . . X X X \n"
+ ". . . . X . X X X . . . . X X X X . . X X X X . . . . \n"
+ ". . X . . X . X . . . X . X X . X X . X . . . X . X . \n"
+ "X X . . X . . X X X X X X X . . X . X X X X X X X . . \n"
+ "X . X X . . X X . . . . . X . . . . . . X X . X X X . \n"
+ "X . . X X . . X X . X . X . . . . X . X . . X . . X . \n"
+ "X . X . X . . X . X X X X X X X X . X X X X . . X X . \n"
+ "X X X X . . . X . . X X X . X X . . X . . . . X X X . \n"
+ "X X . X . X . . . X . X . . . . X X . X . . X X . . . \n",
"X ", ". ");
var r = new AztecDetectorResult(matrix, NO_POINTS, true, 16, 4);
Assert.That(new Decoder().decode(r), Is.Null);
}
private static void testWriter(String data,
String charset,
int eccPercent,
bool compact,
int layers)
{
// 1. Perform an encode-decode round-trip because it can be lossy.
// 2. Aztec Decoder currently always decodes the data with a LATIN-1 charset:
var byteData = Encoding.GetEncoding(charset).GetBytes(data);
var expectedData = LATIN_1.GetString(byteData, 0, byteData.Length);
var hints = new Dictionary<EncodeHintType, Object>()
;
hints[EncodeHintType.CHARACTER_SET] = charset;
hints[EncodeHintType.ERROR_CORRECTION] = eccPercent;
var writer = new AztecWriter();
var matrix = writer.encode(data, BarcodeFormat.AZTEC, 0, 0, hints);
var aztec = Internal.Encoder.encode(Encoding.GetEncoding(charset).GetBytes(data), eccPercent, Internal.Encoder.DEFAULT_AZTEC_LAYERS);
Assert.AreEqual(compact, aztec.isCompact, "Unexpected symbol format (compact)");
Assert.AreEqual(layers, aztec.Layers, "Unexpected nr. of layers");
var matrix2 = aztec.Matrix;
Assert.AreEqual(matrix, matrix2);
var r = new AztecDetectorResult(matrix, NO_POINTS, aztec.isCompact, aztec.CodeWords, aztec.Layers);
var res = new Internal.Decoder().decode(r);
Assert.AreEqual(expectedData, res.Text);
// Check error correction by introducing up to eccPercent errors
int ecWords = aztec.CodeWords*eccPercent/100;
var random = getPseudoRandom();
for (int i = 0; i < ecWords; i++)
{
// don't touch the core
int x = random.Next(1) > 0
? random.Next(aztec.Layers*2)
: matrix.Width - 1 - random.Next(aztec.Layers*2);
int y = random.Next(1) > 0
? random.Next(aztec.Layers*2)
: matrix.Height - 1 - random.Next(aztec.Layers*2);
matrix.flip(x, y);
}
r = new AztecDetectorResult(matrix, NO_POINTS, aztec.isCompact, aztec.CodeWords, aztec.Layers);
res = new Internal.Decoder().decode(r);
Assert.AreEqual(expectedData, res.Text);
}
private static void testEncodeDecode(String data, bool compact, int layers)
{
AztecCode aztec = Internal.Encoder.encode(LATIN_1.GetBytes(data), 25, Internal.Encoder.DEFAULT_AZTEC_LAYERS);
Assert.AreEqual(compact, aztec.isCompact, "Unexpected symbol format (compact)");
Assert.AreEqual(layers, aztec.Layers, "Unexpected nr. of layers");
BitMatrix matrix = aztec.Matrix;
AztecDetectorResult r =
new AztecDetectorResult(matrix, NO_POINTS, aztec.isCompact, aztec.CodeWords, aztec.Layers);
DecoderResult res = new Internal.Decoder().decode(r);
Assert.AreEqual(data, res.Text);
// Check error correction by introducing a few minor errors
Random random = getPseudoRandom();
matrix.flip(random.Next(matrix.Width), random.Next(2));
matrix.flip(random.Next(matrix.Width), matrix.Height - 2 + random.Next(2));
matrix.flip(random.Next(2), random.Next(matrix.Height));
matrix.flip(matrix.Width - 2 + random.Next(2), random.Next(matrix.Height));
r = new AztecDetectorResult(matrix, NO_POINTS, aztec.isCompact, aztec.CodeWords, aztec.Layers);
res = new Internal.Decoder().decode(r);
Assert.AreEqual(data, res.Text);
}
/// <summary>
/// Decodes the specified detector result.
/// </summary>
/// <param name="detectorResult">The detector result.</param>
/// <returns></returns>
public DecoderResult decode(AztecDetectorResult detectorResult)
{
ddata = detectorResult;
var matrix = detectorResult.Bits;
var rawbits = extractBits(matrix);
if (rawbits == null)
return null;
var correctedBits = correctBits(rawbits);
if (correctedBits == null)
return null;
var result = getEncodedData(correctedBits);
if (result == null)
return null;
var rawBytes = convertBoolArrayToByteArray(correctedBits);
return new DecoderResult(rawBytes, result, null, null);
}
/// <summary>
/// Decodes the specified detector result.
/// </summary>
/// <param name="detectorResult">The detector result.</param>
/// <returns></returns>
public DecoderResult decode(AztecDetectorResult detectorResult)
{
ddata = detectorResult;
BitMatrix matrix = detectorResult.Bits;
bool[] rawbits = extractBits(matrix);
if (rawbits == null)
return null;
bool[] correctedBits = correctBits(rawbits);
if (correctedBits == null)
return null;
String result = getEncodedData(correctedBits);
if (result == null)
return null;
return new DecoderResult(null, result, null, null);
}
