private void ScanPreviewBuffer()
{
if (_photoCamera == null)
{
return;
}
if (!_initialized)
{
return;
}
try
{
_photoCamera.GetPreviewBufferY(_luminance.PreviewBufferY);
var binarizer = new ZXing.Common.HybridBinarizer(_luminance);
var binBitmap = new BinaryBitmap(binarizer);
var result = _reader.decode(binBitmap);
if (result != null)
{
OnDecodingCompleted(result);
}
}
catch (Exception)
{
// If decoding fails it will throw a ReaderException
// and we're not interested in doing anything with it
}
}
public BinaryBitmap GetImage(string file)
{
var fullName = System.IO.Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Images", file);
var bmp = new System.Drawing.Bitmap(fullName);
var bin = new ZXing.Common.HybridBinarizer(new RGBLuminanceSource(bmp, bmp.Width, bmp.Height));
var i = new BinaryBitmap(bin);
return(i);
}
private void ScanPreviewBuffer()
{
if (_photoCamera == null)
{
return;
}
if (!_initialized)
{
return;
}
// Don't scan too frequently
// Check the minimum time between frames
// as well as the min time between continuous scans
var msSinceLastPreview = (DateTime.UtcNow - _lastAnalysis).TotalMilliseconds;
if ((DateTime.UtcNow - _lastAnalysis).TotalMilliseconds < Options.DelayBetweenAnalyzingFrames ||
(_wasScanned && msSinceLastPreview < Options.DelayBetweenContinuousScans))
{
return;
}
if (!IsAnalyzing)
{
return;
}
_wasScanned = false;
_lastAnalysis = DateTime.UtcNow;
try
{
_photoCamera.GetPreviewBufferY(_luminance.PreviewBufferY);
var binarizer = new ZXing.Common.HybridBinarizer(_luminance);
var binBitmap = new BinaryBitmap(binarizer);
var result = _reader.decode(binBitmap);
if (result != null)
{
_wasScanned = true;
OnDecodingCompleted(result);
}
}
catch (Exception)
{
// If decoding fails it will throw a ReaderException
// and we're not interested in doing anything with it
}
}
MemoryStream QRFromClipboard()
{
QRCodeReader redd = new QRCodeReader();
Bitmap bmp = (Bitmap)Clipboard.GetImage();
BitmapLuminanceSource blp = new BitmapLuminanceSource(bmp);
pictureBox3.Image = bmp;
Binarizer binarizer = new ZXing.Common.HybridBinarizer(blp);
BinaryBitmap binBmp = new BinaryBitmap(binarizer);
Result rr = redd.decode(binBmp);
String dat = "";
byte[] payload = new byte[rr.RawBytes.Length];
FileStream ff = new FileStream("C:/DATASETS/incoming", FileMode.Create);
for (int i = 0; i < rr.RawBytes.Length; i++)
{
ff.WriteByte(rr.RawBytes[i]);
}
ff.Close();
for (int i = 0; i < payload.Length; i++)
{
payload[i] = (byte)rr.RawBytes[i];
}
MessageBox.Show(new String(UnicodeEncoding.Unicode.GetChars(payload)));
MemoryStream fs = new MemoryStream();
BinaryWriter bw = new BinaryWriter(fs);
fs.Write(payload, 0, payload.Length);
fs.Seek(0, SeekOrigin.Begin);
return(fs);
}
public BinaryBitmap GetImage(string file)
{
var fullName = System.IO.Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Images", file);
//Try to find it from the source code folder
if (!System.IO.File.Exists(fullName))
{
fullName = System.IO.Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "..", "..", "Images", file);
}
var bmp = new System.Drawing.Bitmap(fullName);
var bin = new ZXing.Common.HybridBinarizer(new RGBLuminanceSource(bmp, bmp.Width, bmp.Height));
var i = new BinaryBitmap(bin);
return(i);
}
public static List <QRCode> ExtractFrom(Image image)
{
List <QRCode> output = new List <QRCode>();
Bitmap bitmap = new Bitmap(image);
ZXing.QrCode.QRCodeReader qr = new ZXing.QrCode.QRCodeReader();
ZXing.LuminanceSource source = new ZXing.BitmapLuminanceSource(bitmap);
ZXing.Common.HybridBinarizer hybrid = new ZXing.Common.HybridBinarizer(source);
ZXing.BinaryBitmap binBitmap = new ZXing.BinaryBitmap(hybrid);
ZXing.Result[] multiresults = new ZXing.Multi.QrCode.QRCodeMultiReader().decodeMultiple(binBitmap);
if (multiresults != null && multiresults.Length > 0)
{
foreach (ZXing.Result result in multiresults)
{
QRCode qrCode = new QRCode(result.Text);
qrCode.Points = new PointF[result.ResultPoints.Length];
for (int i = 0; i < result.ResultPoints.Length; i++)
{
qrCode.Points[i] = new PointF(result.ResultPoints[i].X, result.ResultPoints[i].Y);
}
output.Add(qrCode);
}
}
ZXing.Result singleresult = qr.decode(binBitmap);
if (singleresult != null)
{
QRCode qrCode = new QRCode(singleresult.Text);
qrCode.Points = new PointF[4];
qrCode.Points[0] = new PointF(singleresult.ResultPoints[0].X, singleresult.ResultPoints[0].Y);
qrCode.Points[1] = new PointF(singleresult.ResultPoints[1].X, singleresult.ResultPoints[1].Y);
qrCode.Points[2] = new PointF(singleresult.ResultPoints[2].X, singleresult.ResultPoints[2].Y);
if (singleresult.ResultPoints.Length > 2)
{
qrCode.Points[3] = new PointF(singleresult.ResultPoints[3].X, singleresult.ResultPoints[3].Y);
}
output.Add(qrCode);
}
return(output);
}
public static string QRDecoder(System.IO.Stream qrCodeFileStream)
{
var sKManagedStream = new SkiaSharp.SKManagedStream(qrCodeFileStream, true);
var sKBitmap = SkiaSharp.SKBitmap.Decode(sKManagedStream);
sKManagedStream.Dispose();
if (sKBitmap.IsEmpty)
{
sKBitmap.Dispose();
throw new Exception("未识别的图片文件");
}
var w = sKBitmap.Width;
var h = sKBitmap.Height;
int ps = w * h;
byte[] bytes = new byte[ps * 3];
int byteIndex = 0;
for (var x = 0; x < w; x++)
{
for (var y = 0; y < h; y++)
{
var color = sKBitmap.GetPixel(x, y);
bytes[byteIndex + 0] = color.Red;
bytes[byteIndex + 1] = color.Green;
bytes[byteIndex + 2] = color.Blue;
byteIndex += 3;
}
}
sKBitmap.Dispose();
var qRCodeReader = new ZXing.QrCode.QRCodeReader();
var rGBLuminanceSource = new ZXing.RGBLuminanceSource(bytes, w, h);
var hybridBinarizer = new ZXing.Common.HybridBinarizer(rGBLuminanceSource);
var binaryBitmap = new ZXing.BinaryBitmap(hybridBinarizer);
var hints = new Dictionary <ZXing.DecodeHintType, object>();
hints.Add(ZXing.DecodeHintType.CHARACTER_SET, "utf-8");
var result = qRCodeReader.decode(binaryBitmap, hints);
return(result != null ? result.Text : "");
}
public BinaryBitmap GetImage(string file)
{
var fullName = System.IO.Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Images", file);
var bmp = new System.Drawing.Bitmap(fullName);
var bin = new ZXing.Common.HybridBinarizer(new RGBLuminanceSource(bmp, bmp.Width, bmp.Height));
var i = new BinaryBitmap(bin);
return i;
}
private void ScanPreviewBuffer()
{
if (_photoCamera == null) return;
if (!_initialized) return;
try
{
_photoCamera.GetPreviewBufferY(_luminance.PreviewBufferY);
var binarizer = new ZXing.Common.HybridBinarizer(_luminance);
var binBitmap = new BinaryBitmap(binarizer);
var result = _reader.decode(binBitmap);
if (result != null)
OnDecodingCompleted(result);
}
catch (Exception)
{
// If decoding fails it will throw a ReaderException
// and we're not interested in doing anything with it
}
}
private void ScanPreviewBuffer()
{
if (!IsAnalyzing) return;
if (_photoCamera == null) return;
if (!_initialized) return;
// Don't scan too frequently
// Check the minimum time between frames
// as well as the min time between continuous scans
var msSinceLastPreview = (DateTime.UtcNow - _lastAnalysis).TotalMilliseconds;
if ((DateTime.UtcNow - _lastAnalysis).TotalMilliseconds < Options.DelayBetweenAnalyzingFrames
|| (_wasScanned && msSinceLastPreview < Options.DelayBetweenContinuousScans))
return;
_wasScanned = false;
_lastAnalysis = DateTime.UtcNow;
try
{
_photoCamera.GetPreviewBufferY(_luminance.PreviewBufferY);
var binarizer = new ZXing.Common.HybridBinarizer(_luminance);
var binBitmap = new BinaryBitmap(binarizer);
var result = _reader.decode(binBitmap);
if (result != null)
{
_wasScanned = true;
OnDecodingCompleted(result);
}
}
catch (Exception)
{
// If decoding fails it will throw a ReaderException
// and we're not interested in doing anything with it
}
}
public BinaryBitmap GetImage(string file)
{
var fullName = System.IO.Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Images", file);
//Try to find it from the source code folder
if (!System.IO.File.Exists(fullName))
fullName = System.IO.Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "..", "..", "Images", file);
var bmp = new System.Drawing.Bitmap(fullName);
var bin = new ZXing.Common.HybridBinarizer(new RGBLuminanceSource(bmp, bmp.Width, bmp.Height));
var i = new BinaryBitmap(bin);
return i;
}
