public Result decode(BinaryBitmap image, System.Collections.Hashtable hints)
{
DecoderResult decoderResult;
ResultPoint[] points;
if (hints != null && hints.ContainsKey(DecodeHintType.PURE_BARCODE))
{
BitMatrix bits = extractPureBits(image.BlackMatrix);
decoderResult = decoder.decode(bits);
points = NO_POINTS;
}
else
{
DetectorResult detectorResult = new Detector(image.BlackMatrix).detect();
decoderResult = decoder.decode(detectorResult.Bits);
points = detectorResult.Points;
}
Result result = new Result(decoderResult.Text, decoderResult.RawBytes, points, BarcodeFormat.DATAMATRIX);
if (decoderResult.ByteSegments != null)
{
result.putMetadata(ResultMetadataType.BYTE_SEGMENTS, decoderResult.ByteSegments);
}
if (decoderResult.ECLevel != null)
{
result.putMetadata(ResultMetadataType.ERROR_CORRECTION_LEVEL, decoderResult.ECLevel.ToString());
}
return result;
}
// public Result decode(BinaryBitmap image, System.Collections.Hashtable hints) // commented by .net follower (http://dotnetfollower.com)
public Result decode(BinaryBitmap image, System.Collections.Generic.Dictionary <Object, Object> hints) // added by .net follower (http://dotnetfollower.com)
{
DecoderResult decoderResult;
ResultPoint[] points;
if (hints != null && hints.ContainsKey(DecodeHintType.PURE_BARCODE))
{
BitMatrix bits = extractPureBits(image.BlackMatrix);
decoderResult = decoder.decode(bits);
points = NO_POINTS;
}
else
{
DetectorResult detectorResult = new Detector(image.BlackMatrix).detect();
decoderResult = decoder.decode(detectorResult.Bits);
points = detectorResult.Points;
}
Result result = new Result(decoderResult.Text, decoderResult.RawBytes, points, BarcodeFormat.DATAMATRIX);
if (decoderResult.ByteSegments != null)
{
result.putMetadata(ResultMetadataType.BYTE_SEGMENTS, decoderResult.ByteSegments);
}
if (decoderResult.ECLevel != null)
{
result.putMetadata(ResultMetadataType.ERROR_CORRECTION_LEVEL, decoderResult.ECLevel.ToString());
}
return(result);
}
public virtual Result decode(BinaryBitmap image, Dictionary <object, object> hints)
{
DecoderResult decoderResult;
ResultPoint[] points;
if (hints != null && hints.ContainsKey(DecodeHintType.PURE_BARCODE))
{
BitMatrix bits = extractPureBits(image.BlackMatrix);
decoderResult = decoder.decode(bits);
points = NO_POINTS;
}
else
{
DetectorResult detectorResult = new Detector(image.BlackMatrix).detect(hints);
decoderResult = decoder.decode(detectorResult.Bits);
points = detectorResult.Points;
}
Result result = new Result(decoderResult.Text, decoderResult.RawBytes, points, BarcodeFormat.QR_CODE);
if (decoderResult.ByteSegments != null)
{
result.putMetadata(ResultMetadataType.BYTE_SEGMENTS, decoderResult.ByteSegments);
}
if (decoderResult.ECLevel != null)
{
result.putMetadata(ResultMetadataType.ERROR_CORRECTION_LEVEL, decoderResult.ECLevel.ToString());
}
return(result);
}
public Result[] decodeMultiple(BinaryBitmap image, Dictionary <object, object> hints)
{
List <object> results = new List <object>();
DetectorResult[] detectorResult = new MultiDetector(image.BlackMatrix).detectMulti(hints);
for (int i = 0; i < detectorResult.Length; i++)
{
try
{
DecoderResult decoderResult = Decoder.decode(detectorResult[i].Bits);
ResultPoint[] points = detectorResult[i].Points;
Result result = new Result(decoderResult.Text, decoderResult.RawBytes, points, BarcodeFormat.QR_CODE);
if (decoderResult.ByteSegments != null)
{
result.putMetadata(ResultMetadataType.BYTE_SEGMENTS, decoderResult.ByteSegments);
}
if (decoderResult.ECLevel != null)
{
result.putMetadata(ResultMetadataType.ERROR_CORRECTION_LEVEL, decoderResult.ECLevel.ToString());
}
results.Add(result);
}
catch (ReaderException)
{
// ignore and continue
}
}
if ((results.Count == 0))
{
return(EMPTY_RESULT_ARRAY);
}
else
{
Result[] resultArray = new Result[results.Count];
for (int i = 0; i < results.Count; i++)
{
resultArray[i] = (Result)results[i];
}
return(resultArray);
}
}
// public Result[] decodeMultiple(BinaryBitmap image, System.Collections.Hashtable hints) // commented by .net follower (http://dotnetfollower.com)
public Result[] decodeMultiple(BinaryBitmap image, System.Collections.Generic.Dictionary <Object, Object> hints) // added by .net follower (http://dotnetfollower.com)
{
// System.Collections.ArrayList results = System.Collections.ArrayList.Synchronized(new System.Collections.ArrayList(10)); // commented by .net follower (http://dotnetfollower.com)
System.Collections.Generic.List <Object> results = new System.Collections.Generic.List <Object>(10); // added by .net follower (http://dotnetfollower.com)
DetectorResult[] detectorResult = new MultiDetector(image.BlackMatrix).detectMulti(hints);
for (int i = 0; i < detectorResult.Length; i++)
{
try
{
DecoderResult decoderResult = Decoder.decode(detectorResult[i].Bits);
ResultPoint[] points = detectorResult[i].Points;
Result result = new Result(decoderResult.Text, decoderResult.RawBytes, points, BarcodeFormat.QR_CODE);
if (decoderResult.ByteSegments != null)
{
result.putMetadata(ResultMetadataType.BYTE_SEGMENTS, decoderResult.ByteSegments);
}
if (decoderResult.ECLevel != null)
{
result.putMetadata(ResultMetadataType.ERROR_CORRECTION_LEVEL, decoderResult.ECLevel.ToString());
}
results.Add(result);
}
catch (ReaderException re)
{
// ignore and continue
}
}
if ((results.Count == 0))
{
return(EMPTY_RESULT_ARRAY);
}
else
{
Result[] resultArray = new Result[results.Count];
for (int i = 0; i < results.Count; i++)
{
resultArray[i] = (Result)results[i];
}
return(resultArray);
}
}
public Result[] decodeMultiple(BinaryBitmap image, System.Collections.Hashtable hints)
{
System.Collections.ArrayList results = System.Collections.ArrayList.Synchronized(new System.Collections.ArrayList(10));
DetectorResult[] detectorResult = new MultiDetector(image.BlackMatrix).detectMulti(hints);
for (int i = 0; i < detectorResult.Length; i++)
{
try
{
DecoderResult decoderResult = Decoder.decode(detectorResult[i].Bits);
ResultPoint[] points = detectorResult[i].Points;
Result result = new Result(decoderResult.Text, decoderResult.RawBytes, points, BarcodeFormat.QR_CODE);
if (decoderResult.ByteSegments != null)
{
result.putMetadata(ResultMetadataType.BYTE_SEGMENTS, decoderResult.ByteSegments);
}
if (decoderResult.ECLevel != null)
{
result.putMetadata(ResultMetadataType.ERROR_CORRECTION_LEVEL, decoderResult.ECLevel.ToString());
}
results.Add(result);
}
catch (ReaderException re)
{
// ignore and continue
}
}
if ((results.Count == 0))
{
return EMPTY_RESULT_ARRAY;
}
else
{
Result[] resultArray = new Result[results.Count];
for (int i = 0; i < results.Count; i++)
{
resultArray[i] = (Result) results[i];
}
return resultArray;
}
}
// Note that we don't try rotation without the try harder flag, even if rotation was supported.
public virtual Result decode(BinaryBitmap image, System.Collections.Hashtable hints)
{
var retval = doDecode(image, hints);
if (retval.HasValue())
{
return(retval);
}
else
{
bool tryHarder = hints != null && hints.ContainsKey(DecodeHintType.TRY_HARDER);
if (tryHarder && image.RotateSupported)
{
BinaryBitmap rotatedImage = image.rotateCounterClockwise();
Result result = doDecode(rotatedImage, hints);
if (result == null)
{
return(null);
}
// Record that we found it rotated 90 degrees CCW / 270 degrees CW
System.Collections.Hashtable metadata = result.ResultMetadata;
int orientation = 270;
if (metadata != null && metadata.ContainsKey(ResultMetadataType.ORIENTATION))
{
// But if we found it reversed in doDecode(), add in that result here:
orientation = (orientation + ((System.Int32)metadata[ResultMetadataType.ORIENTATION])) % 360;
}
result.putMetadata(ResultMetadataType.ORIENTATION, (System.Object)orientation);
// Update result points
ResultPoint[] points = result.ResultPoints;
int height = rotatedImage.Height;
for (int i = 0; i < points.Length; i++)
{
points[i] = new ResultPoint(height - points[i].Y - 1, points[i].X);
}
return(result);
}
else
{
return(null);
}
}
}
public Result[] decodeMultiple2(BinaryBitmap image, Dictionary<object, object> hints)
{
ArrayList results = new ArrayList();
DetectorResult[] detectorResult = new MultiDetector(image.BlackMatrix).detectMulti(hints);
for (int i = 0; i < detectorResult.Length; i++)
{
try
{
DecoderResult decoderResult = Decoder.decode2(detectorResult[i].Bits);
ResultPoint[] points = detectorResult[i].Points;
Result result = new Result(decoderResult.Text, decoderResult.RawBytes, points, BarcodeFormat.QR_CODE);
if (decoderResult.ByteSegments != null)
{
result.putMetadata(ResultMetadataType.BYTE_SEGMENTS, decoderResult.ByteSegments);
}
if (decoderResult.ECLevel != null)
{
result.putMetadata(ResultMetadataType.ERROR_CORRECTION_LEVEL, decoderResult.ECLevel.ToString());
}
results.Add(result);
}
catch (Exception e)
{
if (e.Message.IndexOf("ReaderException") < 0)
throw e;
// ignore and continue
}
}
if ((results.Count == 0))
{
return EMPTY_RESULT_ARRAY;
}
else
{
Result[] resultArray = new Result[results.Count];
for (int i = 0; i < results.Count; i++)
{
resultArray[i] = (Result) results[i];
}
return resultArray;
}
}
// Note that we don't try rotation without the try harder flag, even if rotation was supported.
// public virtual Result decode(BinaryBitmap image, System.Collections.Hashtable hints) // commented by .net follower (http://dotnetfollower.com)
public virtual Result decode(BinaryBitmap image, System.Collections.Generic.Dictionary <Object, Object> hints) // added by .net follower (http://dotnetfollower.com)
{
try
{
return(doDecode(image, hints));
}
catch (ReaderException re)
{
bool tryHarder = hints != null && hints.ContainsKey(DecodeHintType.TRY_HARDER);
if (tryHarder && image.RotateSupported)
{
BinaryBitmap rotatedImage = image.rotateCounterClockwise();
Result result = doDecode(rotatedImage, hints);
// Record that we found it rotated 90 degrees CCW / 270 degrees CW
// System.Collections.Hashtable metadata = result.ResultMetadata; // commented by .net follower (http://dotnetfollower.com)
System.Collections.Generic.Dictionary <Object, Object> metadata = result.ResultMetadata; // added by .net follower (http://dotnetfollower.com)
int orientation = 270;
if (metadata != null && metadata.ContainsKey(ResultMetadataType.ORIENTATION))
{
// But if we found it reversed in doDecode(), add in that result here:
orientation = (orientation + ((System.Int32)metadata[ResultMetadataType.ORIENTATION])) % 360;
}
result.putMetadata(ResultMetadataType.ORIENTATION, (System.Object)orientation);
// Update result points
ResultPoint[] points = result.ResultPoints;
int height = rotatedImage.Height;
for (int i = 0; i < points.Length; i++)
{
points[i] = new ResultPoint(height - points[i].Y - 1, points[i].X);
}
return(result);
}
else
{
throw re;
}
}
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: public com.google.zxing.Result[] decodeMultiple(com.google.zxing.BinaryBitmap image, java.util.Map<com.google.zxing.DecodeHintType,?> hints) throws com.google.zxing.NotFoundException
public Result[] decodeMultiple(BinaryBitmap image, IDictionary<DecodeHintType, object> hints)
{
List<Result> results = new List<Result>();
DetectorResult[] detectorResults = (new MultiDetector(image.BlackMatrix)).detectMulti(hints);
foreach (DetectorResult detectorResult in detectorResults)
{
try
{
DecoderResult decoderResult = Decoder.decode(detectorResult.Bits, hints);
ResultPoint[] points = detectorResult.Points;
Result result = new Result(decoderResult.Text, decoderResult.RawBytes, points, BarcodeFormat.QR_CODE);
IList<sbyte[]> byteSegments = decoderResult.ByteSegments;
if (byteSegments != null)
{
result.putMetadata(ResultMetadataType.BYTE_SEGMENTS, byteSegments);
}
string ecLevel = decoderResult.ECLevel;
if (ecLevel != null)
{
result.putMetadata(ResultMetadataType.ERROR_CORRECTION_LEVEL, ecLevel);
}
results.Add(result);
}
catch (ReaderException re)
{
// ignore and continue
}
}
if (results.Count == 0)
{
return EMPTY_RESULT_ARRAY;
}
else
{
return results.ToArray();
}
}
/// <summary> We're going to examine rows from the middle outward, searching alternately above and below the
/// middle, and farther out each time. rowStep is the number of rows between each successive
/// attempt above and below the middle. So we'd scan row middle, then middle - rowStep, then
/// middle + rowStep, then middle - (2 * rowStep), etc.
/// rowStep is bigger as the image is taller, but is always at least 1. We've somewhat arbitrarily
/// decided that moving up and down by about 1/16 of the image is pretty good; we try more of the
/// image if "trying harder".
///
/// </summary>
/// <param name="image">The image to decode
/// </param>
/// <param name="hints">Any hints that were requested
/// </param>
/// <returns> The contents of the decoded barcode
/// </returns>
/// <throws> ReaderException Any spontaneous errors which occur </throws>
private Result doDecode(BinaryBitmap image, Dictionary <object, object> hints)
{
int width = image.Width;
int height = image.Height;
BitArray row = new BitArray(width);
int middle = height >> 1;
bool tryHarder = hints != null && hints.ContainsKey(DecodeHintType.TRY_HARDER);
int rowStep = System.Math.Max(1, height >> (tryHarder?7:4));
int maxLines;
if (tryHarder)
{
maxLines = height; // Look at the whole image, not just the center
}
else
{
maxLines = 9; // Nine rows spaced 1/16 apart is roughly the middle half of the image
}
for (int x = 0; x < maxLines; x++)
{
// Scanning from the middle out. Determine which row we're looking at next:
int rowStepsAboveOrBelow = (x + 1) >> 1;
bool isAbove = (x & 0x01) == 0; // i.e. is x even?
int rowNumber = middle + rowStep * (isAbove?rowStepsAboveOrBelow:-rowStepsAboveOrBelow);
if (rowNumber < 0 || rowNumber >= height)
{
// Oops, if we run off the top or bottom, stop
break;
}
// Estimate black point for this row and load it:
try
{
row = image.getBlackRow(rowNumber, row);
}
catch (ReaderException)
{
continue;
}
// While we have the image data in a BitArray, it's fairly cheap to reverse it in place to
// handle decoding upside down barcodes.
for (int attempt = 0; attempt < 2; attempt++)
{
if (attempt == 1)
{
// trying again?
row.reverse(); // reverse the row and continue
// This means we will only ever draw result points *once* in the life of this method
// since we want to avoid drawing the wrong points after flipping the row, and,
// don't want to clutter with noise from every single row scan -- just the scans
// that start on the center line.
if (hints != null && hints.ContainsKey(DecodeHintType.NEED_RESULT_POINT_CALLBACK))
{
Dictionary <object, object> newHints = new Dictionary <object, object>();
System.Collections.IEnumerator hintEnum = hints.Keys.GetEnumerator();
//UPGRADE_TODO: Method 'java.util.Enumeration.hasMoreElements' was converted to 'System.Collections.IEnumerator.MoveNext' which has a different behavior. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1073_javautilEnumerationhasMoreElements'"
while (hintEnum.MoveNext())
{
//UPGRADE_TODO: Method 'java.util.Enumeration.nextElement' was converted to 'System.Collections.IEnumerator.Current' which has a different behavior. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1073_javautilEnumerationnextElement'"
System.Object key = hintEnum.Current;
if (!key.Equals(DecodeHintType.NEED_RESULT_POINT_CALLBACK))
{
newHints[key] = hints[key];
}
}
hints = newHints;
}
}
try
{
// Look for a barcode
Result result = decodeRow(rowNumber, row, hints);
// We found our barcode
if (attempt == 1)
{
// But it was upside down, so note that
result.putMetadata(ResultMetadataType.ORIENTATION, (System.Object) 180);
// And remember to flip the result points horizontally.
ResultPoint[] points = result.ResultPoints;
points[0] = new ResultPoint(width - points[0].X - 1, points[0].Y);
points[1] = new ResultPoint(width - points[1].X - 1, points[1].Y);
}
return(result);
}
catch (ReaderException)
{
// continue -- just couldn't decode this row
}
}
}
throw ReaderException.Instance;
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: public com.google.zxing.Result decode(com.google.zxing.BinaryBitmap image, java.util.Map<com.google.zxing.DecodeHintType,?> hints) throws com.google.zxing.NotFoundException, com.google.zxing.ChecksumException, com.google.zxing.FormatException
public Result decode(BinaryBitmap image, IDictionary<DecodeHintType, object> hints)
{
DecoderResult decoderResult;
ResultPoint[] points;
if (hints != null && hints.ContainsKey(DecodeHintType.PURE_BARCODE))
{
BitMatrix bits = extractPureBits(image.BlackMatrix);
decoderResult = decoder.decode(bits);
points = NO_POINTS;
}
else
{
DetectorResult detectorResult = (new Detector(image.BlackMatrix)).detect();
decoderResult = decoder.decode(detectorResult.Bits);
points = detectorResult.Points;
}
Result result = new Result(decoderResult.Text, decoderResult.RawBytes, points, BarcodeFormat.DATA_MATRIX);
IList<sbyte[]> byteSegments = decoderResult.ByteSegments;
if (byteSegments != null)
{
result.putMetadata(ResultMetadataType.BYTE_SEGMENTS, byteSegments);
}
string ecLevel = decoderResult.ECLevel;
if (ecLevel != null)
{
result.putMetadata(ResultMetadataType.ERROR_CORRECTION_LEVEL, ecLevel);
}
return result;
}
/// <summary>
/// <p>Like <seealso cref="#decodeRow(int, BitArray, java.util.Map)"/>, but
/// allows caller to inform method about where the UPC/EAN start pattern is
/// found. This allows this to be computed once and reused across many implementations.</p>
/// </summary>
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: public com.google.zxing.Result decodeRow(int rowNumber, com.google.zxing.common.BitArray row, int[] startGuardRange, java.util.Map<com.google.zxing.DecodeHintType,?> hints) throws com.google.zxing.NotFoundException, com.google.zxing.ChecksumException, com.google.zxing.FormatException
public virtual Result decodeRow(int rowNumber, BitArray row, int[] startGuardRange, IDictionary<DecodeHintType, object> hints)
{
//ResultPointCallback resultPointCallback = hints == null ? null : (ResultPointCallback) hints[DecodeHintType.NEED_RESULT_POINT_CALLBACK];
ResultPointCallback resultPointCallback = null;
if (hints != null && hints.ContainsKey(DecodeHintType.NEED_RESULT_POINT_CALLBACK))
{
resultPointCallback = (ResultPointCallback)hints[DecodeHintType.NEED_RESULT_POINT_CALLBACK];
}
if (resultPointCallback != null)
{
resultPointCallback.foundPossibleResultPoint(new ResultPoint((startGuardRange[0] + startGuardRange[1]) / 2.0f, rowNumber));
}
StringBuilder result = decodeRowStringBuffer;
result.Length = 0;
int endStart = decodeMiddle(row, startGuardRange, result);
if (resultPointCallback != null)
{
resultPointCallback.foundPossibleResultPoint(new ResultPoint(endStart, rowNumber));
}
int[] endRange = decodeEnd(row, endStart);
if (resultPointCallback != null)
{
resultPointCallback.foundPossibleResultPoint(new ResultPoint((endRange[0] + endRange[1]) / 2.0f, rowNumber));
}
// Make sure there is a quiet zone at least as big as the end pattern after the barcode. The
// spec might want more whitespace, but in practice this is the maximum we can count on.
int end = endRange[1];
int quietEnd = end + (end - endRange[0]);
if (quietEnd >= row.Size || !row.isRange(end, quietEnd, false))
{
throw NotFoundException.NotFoundInstance;
}
string resultString = result.ToString();
if (!checkChecksum(resultString))
{
throw ChecksumException.ChecksumInstance;
}
float left = (float)(startGuardRange[1] + startGuardRange[0]) / 2.0f;
float right = (float)(endRange[1] + endRange[0]) / 2.0f;
BarcodeFormat format = BarcodeFormat;
Result decodeResult = new Result(resultString, null, new ResultPoint[]{new ResultPoint(left, (float) rowNumber), new ResultPoint(right, (float) rowNumber)}, format); // no natural byte representation for these barcodes
try
{
Result extensionResult = extensionReader.decodeRow(rowNumber, row, endRange[1]);
decodeResult.putMetadata(ResultMetadataType.UPC_EAN_EXTENSION, extensionResult.Text);
decodeResult.putAllMetadata(extensionResult.ResultMetadata);
decodeResult.addResultPoints(extensionResult.ResultPoints);
}
catch (ReaderException re)
{
// continue
}
if (format == BarcodeFormat.EAN_13 || format == BarcodeFormat.UPC_A)
{
string countryID = eanManSupport.lookupCountryIdentifier(resultString);
if (countryID != null)
{
decodeResult.putMetadata(ResultMetadataType.POSSIBLE_COUNTRY, countryID);
}
}
return decodeResult;
}
