/// <summary>
/// Decode the specified image, with the hints and optionally multiple barcodes.
/// Based on Owen's Comments in <see cref="ZXing.ReaderException"/>, this method has been modified to continue silently
/// if a barcode was not decoded where it was detected instead of throwing a new exception object.
/// </summary>
/// <param name="image">Image.</param>
/// <param name="hints">Hints.</param>
/// <param name="multiple">If set to <c>true</c> multiple.</param>
private static Result[] decode(BinaryBitmap image, IDictionary <DecodeHintType, object> hints, bool multiple)
{
var results = new List <Result>();
var detectorResult = Detector.detect(image, hints, multiple);
if (detectorResult != null)
{
foreach (var points in detectorResult.Points)
{
var decoderResult = PDF417ScanningDecoder.decode(detectorResult.Bits, points[4], points[5],
points[6], points[7], getMinCodewordWidth(points), getMaxCodewordWidth(points));
if (decoderResult == null)
{
continue;
}
var result = new Result(decoderResult.Text, decoderResult.RawBytes, points, BarcodeFormat.PDF_417);
result.putMetadata(ResultMetadataType.ERROR_CORRECTION_LEVEL, decoderResult.ECLevel);
var pdf417ResultMetadata = (PDF417ResultMetadata)decoderResult.Other;
if (pdf417ResultMetadata != null)
{
result.putMetadata(ResultMetadataType.PDF417_EXTRA_METADATA, pdf417ResultMetadata);
}
results.Add(result);
}
}
return(results.ToArray());
}
/// <summary>
/// Decode the specified image, with the hints and optionally multiple barcodes.
/// Based on Owen's Comments in <see cref="ZXing.ReaderException"/>, this method has been modified to continue silently
/// if a barcode was not decoded where it was detected instead of throwing a new exception object.
/// </summary>
/// <param name="image">Image.</param>
/// <param name="hints">Hints.</param>
/// <param name="multiple">If set to <c>true</c> multiple.</param>
private static Result[] Decode(BinaryBitmap image, IDictionary <DecodeHintType, object> hints, bool multiple)
{
List <Result> results = new List <Result>();
PDF417DetectorResult detectorResult = Detector.Detect(image, hints, multiple);
foreach (ResultPoint[] points in detectorResult.Points)
{
DecoderResult decoderResult = PDF417ScanningDecoder.Decode(detectorResult.Bits, points[4], points[5],
points[6], points[7], GetMinCodewordWidth(points), GetMaxCodewordWidth(points));
if (decoderResult == null)
{
// See comments re: Exceptions above
// continue;
throw ReaderException.Instance;
}
System.Diagnostics.Debug.WriteLine("Result " + points.ToString() + " > " + decoderResult.Text + " " + decoderResult.RawBytes);
Result result = new Result(decoderResult.Text, decoderResult.RawBytes, points, BarcodeFormat.PDF_417);
result.putMetadata(ResultMetadataType.ERROR_CORRECTION_LEVEL, decoderResult.ECLevel);
PDF417ResultMetadata pdf417ResultMetadata = (PDF417ResultMetadata)decoderResult.Other;
if (pdf417ResultMetadata != null)
{
result.putMetadata(ResultMetadataType.PDF417_EXTRA_METADATA, pdf417ResultMetadata);
}
results.Add(result);
}
return(results.ToArray());
}
