private void btn_File_Click(object sender, System.EventArgs e)
{
string sRes = "";
OpenFileDialog ofn = new OpenFileDialog();
if (ofn.ShowDialog() == DialogResult.OK)
{
try {
Reader barcodeReader =
new com.google.zxing.MultiFormatReader();
System.Drawing.Bitmap srcbitmap =
new System.Drawing.Bitmap(ofn.FileName.ToString()); // Make a copy of the image in the Bitmap variable
//make a grey bitmap of it
bmp_util util = new bmp_util();
srcbitmap = util.ConvertToGrayscale(srcbitmap);
RGBLuminanceSource source =
new RGBLuminanceSource(srcbitmap, srcbitmap.Width, srcbitmap.Height);
com.google.zxing.BinaryBitmap bitmap =
new com.google.zxing.BinaryBitmap(new HybridBinarizer(source));
com.google.zxing.Result result = barcodeReader.decode(bitmap);
System.Console.WriteLine(result.Text);
sRes = result.Text;
}
catch (com.google.zxing.ReaderException zex) {
sRes = zex.Message;
System.Console.WriteLine(zex.Message);
}
catch (Exception ex) {
sRes = ex.Message;
System.Console.WriteLine(ex.Message);
}
tb.Text = sRes;
}
}
private bool Zxing()
{
LuminanceSource source = new RGBLuminanceSource(img, img.Width, img.Height);
com.google.zxing.BinaryBitmap bitmap1 = new com.google.zxing.BinaryBitmap(new HybridBinarizer(source));
Result result;
try
{
result = new MultiFormatReader().decode(bitmap1);
isScaning = false;
scanTimer.Stop();
System.Windows.Application.Current.Dispatcher.BeginInvoke(new Action(() =>
{
btnScan.Content = "Scan";
tbQRCode.Text = result.Text;
}));
return(true);
}
catch
{
return(false);
}
}
private static bool decode(FileInfo file)
{
Bitmap image ;
try {
image = new Bitmap(file.FullName) ;
} catch { return false ; }
// Rectangle crop = new Rectangle(image.Width/2,0,image.Width/2, image.Height) ;
// Bitmap focusOn = image.Clone(crop, PixelFormat.DontCare) ;
// RGBLuminanceSource j = new RGBLuminanceSource(focusOn, focusOn.Width, focusOn.Height) ;
RGBLuminanceSource j = new RGBLuminanceSource(image, image.Width, image.Height) ;
Binarizer[] binarizer = {new HybridBinarizer(j), new GlobalHistogramBinarizer(j)} ;
Reader[] reader = {new QRCodeReader(), new ByQuadrantReader(new QRCodeReader())} ;
Result qrc = null ;
Hashtable hints = new Hashtable() ;
hints[DecodeHintType.TRY_HARDER] = true ;
hints[DecodeHintType.POSSIBLE_FORMATS] = BarcodeFormat.QR_CODE ;
foreach (Binarizer b in binarizer) {
BinaryBitmap bitmap = new BinaryBitmap(b) ;
foreach (Reader r in reader) {
try {
qrc = r.decode(bitmap, hints) ;
} catch {}
if (qrc != null) break ;
}
if (qrc != null) break ;
}
return ((qrc != null) ? ifDecoded(file, qrc) : ifNotDecoded(file)) ;
}
private bool Zxing()
{
LuminanceSource source = new RGBLuminanceSource(img, img.Width, img.Height);
com.google.zxing.BinaryBitmap bitmap1 = new com.google.zxing.BinaryBitmap(new HybridBinarizer(source));
Result result;
try
{
result = new MultiFormatReader().decode(bitmap1);
Camera.Stop();
scanTimer.Stop();
System.Windows.Application.Current.Dispatcher.BeginInvoke(new Action(() =>
{
epStatus.Visibility = Visibility.Visible;
imgScan.Visibility = Visibility.Collapsed;
QRCodeInfo qRCodeInfo = new QRCodeInfo(this, result.Text);
qRCodeInfo.Show();
}));
return(true);
}
catch
{
return(false);
}
}
public static String Decode(Image Image)
{
try
{
var hints = new Hashtable();
hints.Add(DecodeHintType.TRY_HARDER, true);
ArrayList fmts = new ArrayList();
fmts.Add(BarcodeFormat.QR_CODE);
hints.Add(DecodeHintType.POSSIBLE_FORMATS, fmts);
var Bitmap = new Bitmap(Image);
LuminanceSource source = new RGBLuminanceSource(Bitmap, Bitmap.Width, Bitmap.Height);
var bitmap = new BinaryBitmap(new GlobalHistogramBinarizer(source));
Reader reader = new MultiFormatReader();
Result result = reader.decode(bitmap, hints);
String DecodedString = result.Text;
Console.WriteLine(DecodedString);
return DecodedString;
}
catch (ReaderException ex)
{
return "";
}
catch (InvalidOperationException ex)
{
return "";
}
}
private void DoQrToBin(string filename)
{
try
{
var fileStream = File.OpenRead(filename);
var img = Image.FromStream(fileStream);
var bmp = new Bitmap(img);
fileStream.Close();
var binary = new BinaryBitmap(new HybridBinarizer(new RGBLuminanceSource(bmp, bmp.Width, bmp.Height)));
var reader = new QRCodeReader();
var result = reader.decode(binary);
var resultList = (ArrayList)result.ResultMetadata[ResultMetadataType.BYTE_SEGMENTS];
if (resultList == null)
{
File.WriteAllBytes(filename + ".txt", Encoding.UTF8.GetBytes(result.Text));
System.Diagnostics.Process.Start(filename + ".txt");
txtQRText.Text = result.Text;
}
else
File.WriteAllBytes(filename + ".bin", (byte[]) resultList[0]);
}
catch (ReaderException ex)
{
MessageBox.Show(@"Error Loading:" + Environment.NewLine + ex.Message);
}
}
//takes the video input and creates a bitmap of the image
BinaryBitmap GetBitmapFromVideo(PhotoCamera cam)
{
BinaryBitmap binaryBitmap = null;
try
{
// Update buffer size
var pixelWidth = (int)_cam.PreviewResolution.Width;
var pixelHeight = (int)_cam.PreviewResolution.Height;
if (_buffer == null || _buffer.Length != (pixelWidth * pixelHeight))
{
_buffer = new byte[pixelWidth * pixelHeight];
}
_cam.GetPreviewBufferY(_buffer);
var luminance = new RGBLuminanceSource(_buffer, pixelWidth, pixelHeight, true);
var binarizer = new com.google.zxing.common.HybridBinarizer(luminance);
binaryBitmap = new BinaryBitmap(binarizer);
}
catch
{
}
return binaryBitmap;
}
private void btn_File_Click(object sender, System.EventArgs e)
{
string sRes="";
OpenFileDialog ofn=new OpenFileDialog();
if(ofn.ShowDialog()==DialogResult.OK){
try {
Reader barcodeReader=
new com.google.zxing.MultiFormatReader();
System.Drawing.Bitmap srcbitmap =
new System.Drawing.Bitmap(ofn.FileName.ToString()); // Make a copy of the image in the Bitmap variable
//make a grey bitmap of it
bmp_util util=new bmp_util();
srcbitmap = util.ConvertToGrayscale(srcbitmap);
RGBLuminanceSource source =
new RGBLuminanceSource(srcbitmap, srcbitmap.Width, srcbitmap.Height);
com.google.zxing.BinaryBitmap bitmap=
new com.google.zxing.BinaryBitmap(new HybridBinarizer(source));
com.google.zxing.Result result = barcodeReader.decode(bitmap);
System.Console.WriteLine(result.Text);
sRes=result.Text;
}
catch (com.google.zxing.ReaderException zex) {
sRes=zex.Message;
System.Console.WriteLine(zex.Message);
}
catch (Exception ex) {
sRes=ex.Message;
System.Console.WriteLine(ex.Message);
}
tb.Text=sRes;
}
}
public static string Decode(string path)
{
Image img = Image.FromFile(path);
Bitmap bmap = new Bitmap(img);
LuminanceSource source = new RGBLuminanceSource(bmap, bmap.Width, bmap.Height);
com.google.zxing.BinaryBitmap bitmap = new com.google.zxing.BinaryBitmap(new com.google.zxing.common.HybridBinarizer(source));
return(new MultiFormatReader().decode(bitmap).Text);
}
private void button3_Click(object sender, EventArgs e)
{
if (this.pictureBox1.Image == null)
{
return;
}
Image img = this.pictureBox1.Image;
Bitmap bmap;
try
{
bmap = new Bitmap(img);
}
catch (System.IO.IOException ioe)
{
MessageBox.Show(ioe.ToString());
return;
}
if (bmap == null)
{
MessageBox.Show("无法解析该图像！");
return;
}
LuminanceSource source = new RGBLuminanceSource(bmap, bmap.Width, bmap.Height);
com.google.zxing.BinaryBitmap bitmap = new com.google.zxing.BinaryBitmap(new HybridBinarizer(source));
Result result;
try
{
result = new MultiFormatReader().decode(bitmap);
}
catch (ReaderException re)
{
MessageBox.Show("解码出现异常，可能不支持此编码！", "提示");
//MessageBox.Show(re.ToString());
return;
}
this.textBox1.Text = result.Text;
if (result.BarcodeFormat == BarcodeFormat.DATAMATRIX)
{
this.lblFormat.Text = "Datamatrix";
}
else if (result.BarcodeFormat == BarcodeFormat.PDF417)
{
this.lblFormat.Text = "PDF417";
}
else if (result.BarcodeFormat == BarcodeFormat.QR_CODE)
{
this.lblFormat.Text = "QR Code";
}
else
{
this.lblFormat.Text = "未知格式";
}
}
public string findQrCodeText(com.google.zxing.Reader decoder, Bitmap bitmap)
{
var rgb = new RGBLuminanceSource(bitmap, bitmap.Width, bitmap.Height);
var hybrid = new com.google.zxing.common.HybridBinarizer(rgb);
com.google.zxing.BinaryBitmap binBitmap = new com.google.zxing.BinaryBitmap(hybrid);
string decodedString = decoder.decode(binBitmap, null).Text;
return(decodedString);
}
private void ScanPreviewBuffer()
{
try
{
_photoCamera.GetPreviewBufferY(_luminance.PreviewBufferY);
var binarizer = new HybridBinarizer(_luminance);
var binBitmap = new BinaryBitmap(binarizer);
var result = _reader.decode(binBitmap);
Dispatcher.BeginInvoke(() => DisplayResult(result.Text));
}
catch
{
}
}
/// <summary>
/// 从二维码图片读取二维码信息
/// </summary>
/// <param name="bmap"></param>
/// <returns></returns>
public static string ReadCode(Bitmap bmap)
{
if (bmap == null)
{
throw new Exception("Invalid code pictures.");
}
LuminanceSource source = new RGBLuminanceSource(bmap, bmap.Width, bmap.Height);
com.google.zxing.BinaryBitmap bitmap = new com.google.zxing.BinaryBitmap(new HybridBinarizer(source));
Result result;
result = new MultiFormatReader().decode(bitmap);
// 如果要捕获异常，用 catch (ReaderException re)， re.ToString();
return(result.Text);
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: private Result decodeInternal(BinaryBitmap image) throws NotFoundException
private Result decodeInternal(BinaryBitmap image)
{
if (readers != null)
{
foreach (Reader reader in readers)
{
try
{
return(reader.decode(image, hints));
}
catch (ReaderException re)
{
// continue
}
}
}
throw NotFoundException.NotFoundInstance;
}
private Result decodeInternal(BinaryBitmap image)
{
int size = readers.Count;
for (int i = 0; i < size; i++)
{
Reader reader = (Reader)readers[i];
try
{
return(reader.decode(image, hints));
}
catch (ReaderException)
{
// continue
}
}
throw ReaderException.Instance;
}
private bool TryToRecognize(WriteableBitmap wb, Reader reader, Dictionary<object, object> zxhints, out string output)
{
bool res = false;
output = null;
try
{
var luminiance = new RGBLuminanceSource(wb, wb.PixelWidth, wb.PixelHeight);
var binarizer = new com.google.zxing.common.HybridBinarizer(luminiance);
var binBitmap = new com.google.zxing.BinaryBitmap(binarizer);
// recognize
var results = reader.decode(binBitmap, zxhints); // exception will be thrown if reader cannot decode image.
output = results.Text;
res = true;
}
catch {}
return res;
}
private void button1_Click(object sender, EventArgs e)
{
if (this.openFileDialog1.ShowDialog() != DialogResult.OK)
{
return;
}
Image img = Image.FromFile(this.openFileDialog1.FileName);
Bitmap bmap;
try
{
bmap = new Bitmap(img);
}
catch (System.IO.IOException ioe)
{
MessageBox.Show(ioe.ToString());
return;
}
if (bmap == null)
{
MessageBox.Show("Could not decode image");
return;
}
LuminanceSource source = new RGBLuminanceSource(bmap, bmap.Width, bmap.Height);
com.google.zxing.BinaryBitmap bitmap = new com.google.zxing.BinaryBitmap(new COMMON.HybridBinarizer(source));
Result result;
try
{
result = new MultiFormatReader().decode(bitmap);
}
catch (ReaderException re)
{
MessageBox.Show(re.ToString());
return;
}
MessageBox.Show(result.Text);
}
public string ReadBarcode(Bitmap BarcodeImage)
{
RGBLuminanceSource BarcodeSource = new RGBLuminanceSource(BarcodeImage, BarcodeImage.Width, BarcodeImage.Height);
BinaryBitmap BarcodeImageBin = new BinaryBitmap(new GlobalHistogramBinarizer(BarcodeSource));
MultiFormatReader BarcodeReader = new MultiFormatReader();
try
{
Result BarcodeDecodeResult;
BarcodeDecodeResult = BarcodeReader.decode(BarcodeImageBin);
if (BarcodeDecodeResult.Text != null)
return BarcodeDecodeResult.Text;
else
return "NoBarcode";
}
catch (Exception e)
{
return "Fail";
}
}
private void BarCodeDetectTimer_Tick(object sender, EventArgs e)
{
try
{
Bitmap img = (Bitmap)pictureBox1.Image;
Reader reader = new MultiFormatReader();
RGBLuminanceSource source1 = new RGBLuminanceSource(img, img.Width, img.Height);
BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source1));
Result result = reader.decode(bitmap);
textBox1.Text = result.Text;
dekodirano = textBox1.Text;
BarCodeDetectTimer.Stop();
}
catch (Exception)
{
statusStrip1.Text = "Greska pri dekodiranju";
}
}
private void button1_Click(object sender, EventArgs e)
{
if (this.openFileDialog1.ShowDialog() != DialogResult.OK)
{
return;
}
Image img = Image.FromFile(this.openFileDialog1.FileName);
Bitmap bmap;
try
{
bmap = new Bitmap(img);
}
catch (System.IO.IOException ioe)
{
MessageBox.Show(ioe.ToString());
return;
}
if (bmap == null)
{
MessageBox.Show("Could not decode image");
return;
}
LuminanceSource source = new RGBLuminanceSource(bmap, bmap.Width, bmap.Height);
com.google.zxing.BinaryBitmap bitmap = new com.google.zxing.BinaryBitmap(new COMMON.HybridBinarizer(source));
Result result;
try
{
result = new MultiFormatReader().decode(bitmap);
}
catch(ReaderException re)
{
MessageBox.Show(re.ToString());
return;
}
MessageBox.Show(result.Text);
}
private void ScanPreviewBuffer()
{
try
{
lblQR.Text = "No se detecta ningún código QR";
_photoCamera.GetPreviewBufferY(_luminance.PreviewBufferY);
var binarizer = new HybridBinarizer(_luminance);
var binBitmap = new BinaryBitmap(binarizer);
var result = _reader.decode(binBitmap);
var scan = result.Text;
lblQR.Text = "Escanea un código de Museos App";
//System.Media.SystemSounds.Beep.Play();
//System.Media.SystemSounds.Asterisk.Play();
//SystemSounds.Beep.Play();
/*Stream stream = TitleContainer.OpenStream("/Assets/cartel.mp3");
SoundEffect effect = SoundEffect.FromStream(stream);
FrameworkDispatcher.Update();
effect.Play();*/
//mediaElement.Play();
var textId = scan.Remove(0, 42);
System.Diagnostics.Debug.WriteLine("ID DEL TEXTO: " + textId);
var textQR = scan.Remove(42, 1);
System.Diagnostics.Debug.WriteLine("TEXTO DEL QR: " + textQR);
if (textQR.Equals("http://museosapp.azurewebsites.net/Piezas/"))
{
lblQR.Text = "Código QR correcto";
NavigationService.Navigate(new Uri("/InfoQR.xaml?id=" + textId, UriKind.Relative));
_timer.Stop();
}
Dispatcher.BeginInvoke(() => DisplayResult(result.Text));
}
catch
{
}
}
public String decode(Bitmap bitmap)
{
if (bitmap == null)
{
return null;
}
LuminanceSource source = new RGBLuminanceSource(bitmap, bitmap.Width, bitmap.Height);
BinaryBitmap binaryBitmap = new BinaryBitmap(new HybridBinarizer(source));
try
{
Result result = this.reader.decode(binaryBitmap);
if (result != null)
{
String[] resultToken = result.Text.Split(';');
double lat = Convert.ToDouble(resultToken[0]);
double lng = Convert.ToDouble(resultToken[1]);
double distance = Convert.ToDouble(resultToken[2]);
GPoint pointA = new GPoint(Convert.ToInt32(result.ResultPoints[1].X), Convert.ToInt32(result.ResultPoints[1].Y));
GPoint pointB = new GPoint(Convert.ToInt32(result.ResultPoints[2].X), Convert.ToInt32(result.ResultPoints[2].Y));
MapOverlayForm.Instance.SetMapScale(pointA, pointB, distance);
MapOverlayForm.Instance.RotationAngle = Convert.ToSingle(this.computeRotation(result.ResultPoints));
MapOverlayForm.Instance.MoveMapToLocalPosition(this.computeCenter(result.ResultPoints), new GMap.NET.PointLatLng(lat, lng));
}
return result.Text;
}
catch (ReaderException)
{
return null;
}
}
/// <summary> Decode an image using the hints provided. Does not honor existing state.
///
/// </summary>
/// <param name="image">The pixel data to decode
/// </param>
/// <param name="hints">The hints to use, clearing the previous state.
/// </param>
/// <returns> The contents of the image
/// </returns>
/// <throws> ReaderException Any errors which occurred </throws>
// 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)
{
Hints = hints;
return(decodeInternal(image));
}
/// <summary> This version of decode honors the intent of Reader.decode(BinaryBitmap) in that it
/// passes null as a hint to the decoders. However, that makes it inefficient to call repeatedly.
/// Use setHints() followed by decodeWithState() for continuous scan applications.
///
/// </summary>
/// <param name="image">The pixel data to decode
/// </param>
/// <returns> The contents of the image
/// </returns>
/// <throws> ReaderException Any errors which occurred </throws>
public Result decode(BinaryBitmap image)
{
Hints = null;
return(decodeInternal(image));
}
/// <summary> Decode an image using the hints provided. Does not honor existing state.
///
/// </summary>
/// <param name="image">The pixel data to decode
/// </param>
/// <param name="hints">The hints to use, clearing the previous state.
/// </param>
/// <returns> The contents of the image
/// </returns>
/// <throws> ReaderException Any errors which occurred </throws>
public Result decode(BinaryBitmap image, System.Collections.Hashtable hints)
{
Hints = hints;
return decodeInternal(image);
}
/// <summary> Decode an image using the hints provided. Does not honor existing state.
///
/// </summary>
/// <param name="image">The pixel data to decode
/// </param>
/// <param name="hints">The hints to use, clearing the previous state.
/// </param>
/// <returns> The contents of the image
/// </returns>
/// <throws> ReaderException Any errors which occurred </throws>
public Result decode(BinaryBitmap image, System.Collections.Hashtable hints)
{
Hints = hints;
return(decodeInternal(image));
}
/// <summary>
/// Decode an image using the hints provided. Does not honor existing state.
/// </summary>
/// <param name="image"> The pixel data to decode </param>
/// <param name="hints"> The hints to use, clearing the previous state. </param>
/// <returns> The contents of the image </returns>
/// <exception cref="NotFoundException"> Any errors which occurred </exception>
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: public Result decode(BinaryBitmap image, java.util.Map<DecodeHintType,?> hints) throws NotFoundException
public Result decode(BinaryBitmap image, IDictionary <DecodeHintType, object> hints)
{
Hints = hints;
return(decodeInternal(image));
}
private void Worker()
{
float fY1;
float fY2;
float scale;
// calculate picFrame just once
if (picFrame == RectangleF.Empty)
{
// check if device has retina display, if so scale factor by 2
if (UIScreen.MainScreen.RespondsToSelector(new MonoTouch.ObjCRuntime.Selector(@"scale")) &&
UIScreen.MainScreen.Scale == 2)
scale = 2f;
else
scale = 1f;
// check if the device is an ipad or an iphone
if (UIDevice.CurrentDevice.UserInterfaceIdiom == UIUserInterfaceIdiom.Phone)
{
fY1 = 146f / UIScreen.MainScreen.Bounds.Height * scale;
fY2 = 157f / UIScreen.MainScreen.Bounds.Height * scale;
}
else
{
// ipad - constants probably need to be modified if running at native screen res
fY1 = 146f / UIScreen.MainScreen.Bounds.Height * scale;
fY2 = 157f / UIScreen.MainScreen.Bounds.Height * scale;
}
picFrame = new RectangleF(0, UIScreen.MainScreen.Bounds.Height * fY1, UIScreen.MainScreen.Bounds.Width * scale, UIScreen.MainScreen.Bounds.Height * fY2);
}
if(hints==null)
{
var list = new ArrayList();
list.Add(com.google.zxing.BarcodeFormat.EAN_8);
list.Add(com.google.zxing.BarcodeFormat.EAN_13);
hints = new Hashtable();
hints.Add(com.google.zxing.DecodeHintType.POSSIBLE_FORMATS, list);
hints.Add(com.google.zxing.DecodeHintType.NEED_RESULT_POINT_CALLBACK, new ResultCallBack(this));
}
if(_multiFormatOneDReader == null)
{
_multiFormatOneDReader = new com.google.zxing.oned.MultiFormatOneDReader(hints);
}
// Capturing screen image
using (var screenImage = CGImage.ScreenImage.WithImageInRect(picFrame))
{
_theScreenImage = UIImage.FromImage(screenImage);
Bitmap srcbitmap = new System.Drawing.Bitmap(_theScreenImage);
LuminanceSource source = null;
BinaryBitmap bitmap = null;
try {
source = new RGBLuminanceSource(srcbitmap, screenImage.Width, screenImage.Height);
bitmap = new BinaryBitmap(new HybridBinarizer(source));
com.google.zxing.common.BitArray row = new com.google.zxing.common.BitArray(screenImage.Width);
int middle = screenImage.Height >> 1;
int rowStep = System.Math.Max(1, screenImage.Height >> (4));
for (int x = 0; x < 9; 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 >= screenImage.Height)
{
// Oops, if we run off the top or bottom, stop
break;
}
// Estimate black point for this row and load it:
try
{
row = bitmap.getBlackRow(rowNumber, row);
var resultb = _multiFormatOneDReader.decodeRow(rowNumber, row, hints);
if(resultb.Text!=null)
{
BeepOrVibrate();
_parentViewController.BarCodeScanned(resultb);
break;
}
else {
continue;
}
}
catch (ReaderException re)
{
continue;
}
}
// var result = _barcodeReader.decodeWithState(bitmap);
//
// if(result.Text!=null)
// {
// _multiFormatOneDReader = null;
// BeepOrVibrate();
// _parentViewController.BarCodeScanned(result);
// }
} catch (Exception ex) {
Console.WriteLine(ex.Message);
}
finally {
if(bitmap!=null)
bitmap = null;
if(source!=null)
source = null;
if(srcbitmap!=null)
srcbitmap = null;
}
}
}
public void OnPreviewFrame (byte [] bytes, Android.Hardware.Camera camera)
{
try {
byte[] rotatedData = new byte[bytes.Length];
for (int y = 0; y < height; y++) {
for (int x = 0; x < width; x++)
rotatedData[x * height + height - y - 1] = bytes[x + y * width];
}
var dataRect = GetFramingRectInPreview();
var luminance = new YUVLuminanceSource ((sbyte[])(Array)rotatedData, width, height, dataRect.Left, dataRect.Top, dataRect.Width(), dataRect.Height());
var binarized = new BinaryBitmap (new HybridBinarizer (luminance));
var result = reader.decodeWithState (binarized);
//drawResultPoints(binarized, result);
// an exception would be thrown before this point if the QR code was not detected
if (string.IsNullOrEmpty (result.Text))
return;
Android.Util.Log.Debug("AEGISSHIELD", "Barcode Found: " + result.Text);
//ShutdownCamera ();
ShutdownCamera();
activity.OnScan (result);
} catch (ReaderException) {
Android.Util.Log.Debug("AEGISSHIELD", "No barcode Found");
// ignore this exception; it happens every time there is a failed scan
} catch (Exception){
// TODO: this one is unexpected.. log or otherwise handle it
throw;
}
}
private void PumpYFrames()
{
byte[] array = new byte[307200];
bool flag = false;
while (this._pumpYFrames)
{
BarcodeScanner._pauseFramesEvent.WaitOne();
if (this._isScanning)
{
try
{
this._cam.GetPreviewBufferY(array);
flag = true;
}
catch
{
flag = false;
}
if (flag)
{
DateTime now = DateTime.Now;
RGBLuminanceSource rGBLuminanceSource = new RGBLuminanceSource(array, 640, 480, false);
if (this._scanType == CodeType.OneDCodes || this._scanType == CodeType.UPC || this._scanType == CodeType.ITF || this._scanType == CodeType.EAN || this._scanType == CodeType.Code128 || this._scanType == CodeType.Code39)
{
rGBLuminanceSource.rotateCounterClockwise();
}
HybridBinarizer binarizer = new HybridBinarizer(rGBLuminanceSource);
BinaryBitmap image = new BinaryBitmap(binarizer);
Reader reader = this.GetReader(this._scanType);
try
{
Result results = reader.decode(image, this._hintDictionary);
TimeSpan timeSpent = DateTime.Now.Subtract(now);
Deployment.Current.Dispatcher.BeginInvoke(delegate
{
this.ProcessScan(results, timeSpent, this.ScanType);
if (this.StopOnSuccess)
{
this.IsScanning = false;
}
}
);
BarcodeScanner._pauseFramesEvent.Set();
}
catch
{
BarcodeScanner._pauseFramesEvent.Set();
}
}
}
}
}
private void Worker()
{
if(hints==null)
{
hints = new Hashtable();
hints.Add(com.google.zxing.DecodeHintType.POSSIBLE_FORMATS, this.Options.GetFormats());
hints.Add(com.google.zxing.DecodeHintType.NEED_RESULT_POINT_CALLBACK, new ResultCallBack(this));
}
if(_multiFormatReader == null)
{
//_multiFormatReader = new com.google.zxing.oned.MultiFormatOneDReader(hints);
_multiFormatReader = new com.google.zxing.MultiFormatReader();
_multiFormatReader.Hints = hints;
//_multiFormatReader = new MultiFormatReader {
// Hints = new Hashtable {
// { DecodeHintType.POSSIBLE_FORMATS, new ArrayList {
// BarcodeFormat.UPC_A, BarcodeFormat.UPC_E , BarcodeFormat.CODE_128,
// BarcodeFormat.CODE_39, BarcodeFormat.EAN_13, BarcodeFormat.EAN_8
// } }
// }
// };
}
using (var ap = new NSAutoreleasePool())
{
// Capturing screen image
using (var screenImage = CGImage.ScreenImage.WithImageInRect(picFrame)) //.WithImageInRect(picFrame))
{
using (var _theScreenImage = UIImage.FromImage(screenImage))
using (var srcbitmap = new Bitmap(_theScreenImage))
{
LuminanceSource source = null;
BinaryBitmap bitmap = null;
try
{
//Console.WriteLine(screenImage.Width.ToString() + " x " + screenImage.Height.ToString());
//var cropY = (int)((screenImage.Height * 0.4) / 2);
source = new RGBLuminanceSource(srcbitmap, screenImage.Width, screenImage.Height); //.crop(0, cropY, 0, screenImage.Height - cropY - cropY);
//Console.WriteLine(source.Width + " x " + source.Height);
bitmap = new BinaryBitmap(new HybridBinarizer(source));
try
{
var result = _multiFormatReader.decodeWithState(bitmap); //
//var result = _multiFormatReader.decodeWithState (bitmap);
//srcbitmap.Dispose();
if(result.Text!=null)
{
//BeepOrVibrate();
_parentViewController.BarCodeScanned(result);
}
}
catch (ReaderException)
{
}
/*
com.google.zxing.common.BitArray row = new com.google.zxing.common.BitArray(screenImage.Width);
int middle = screenImage.Height >> 1;
int rowStep = System.Math.Max(1, screenImage.Height >> (4));
for (int x = 0; x < 9; 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 >= screenImage.Height)
{
// Oops, if we run off the top or bottom, stop
break;
}
// Estimate black point for this row and load it:
try
{
row = bitmap.getBlackRow(rowNumber, row);
var resultb = _multiFormatReader.decodeRow(rowNumber, row, hints);
if(resultb.Text!=null)
{
Console.WriteLine("SCANNED");
BeepOrVibrate();
_parentViewController.BarCodeScanned(resultb);
break;
}
else {
continue;
}
}
catch (ReaderException re)
{
continue;
}
}
*/
// var result = _barcodeReader.decodeWithState(bitmap);
//
// if(result.Text!=null)
// {
// _multiFormatOneDReader = null;
// BeepOrVibrate();
// _parentViewController.BarCodeScanned(result);
// }
} catch (Exception ex) {
Console.WriteLine(ex.Message);
}
finally {
if(bitmap!=null)
bitmap = null;
if(source!=null)
source = null;
// if(srcbitmap!=null)
// srcbitmap = null;
//if (_theScreenImage != null)
// _theScreenImage = null;
}
}
}
}
GC.Collect();
//Console.WriteLine("Done.");
}
private void ScanPreviewBuffer()
{
try
{
_photoCamera.GetPreviewBufferY(_luminance.PreviewBufferY);
var binarizer = new HybridBinarizer(_luminance);
var binBitmap = new BinaryBitmap(binarizer);
Result result = _reader.decode(binBitmap);
if (result != null)
{
_timer.Stop();
SetStillPicture();
BarCodeRectSuccess();
BarCodeResult barCodeResult = new BarCodeResult(TaskResult.OK);
barCodeResult.result = result.Text;
Dispatcher.BeginInvoke(() =>
{
this.result = barCodeResult;
if (this.NavigationService.CanGoBack)
{
this.NavigationService.GoBack();
}
});
}
else
{
_photoCamera.Focus();
}
}
catch
{
//do nothing
}
}
private void openQRCodeToolStripMenuItem_Click(object sender, EventArgs e)
{
var ofd = new OpenFileDialog { Filter = "All Supported|*.png;*.jpg;*.bmp;*.gif|PNG Files|*.png|Jpeg Files|*.jpg|Bitmap Files|*.bmp|GIF Files|*.gif" };
if (ofd.ShowDialog() != DialogResult.OK) return;
try
{
var file = new FileStream(ofd.FileName, FileMode.Open);
var bmp = new Bitmap(Image.FromStream(file));
file.Close();
var binary = new BinaryBitmap(new HybridBinarizer(new RGBLuminanceSource(bmp, bmp.Width, bmp.Height)));
var reader = new QRCodeReader();
var hashtable = new Hashtable();
hashtable.Add(DecodeHintType.POSSIBLE_FORMATS,BarcodeFormat.QR_CODE);
hashtable.Add(DecodeHintType.TRY_HARDER,true);
var result = reader.decode(binary, hashtable);
var byteArray = (byte[])((ArrayList)result.ResultMetadata[ResultMetadataType.BYTE_SEGMENTS])[0];
load_QR_data(byteArray);
}
catch (ReaderException ex)
{
MessageBox.Show("Error Loading:" + Environment.NewLine + ex.Message);
}
catch (InvalidOperationException ex)
{
MessageBox.Show("Error Loading:" + Environment.NewLine + ex.Message);
}
}
public String getQRCodeData(Bitmap bitmap)
{
LuminanceSource source = new RGBLuminanceSource(bitmap, bitmap.Width, bitmap.Height);
BinaryBitmap binaryBitmap = new BinaryBitmap(new HybridBinarizer(source));
return this.reader.decode(binaryBitmap).Text;
}
public override void DidOutputSampleBuffer (AVCaptureOutput captureOutput, CMSampleBuffer sampleBuffer, AVCaptureConnection connection)
{
try {
if (!gotResult)
{
LuminanceSource luminance;
//connection.VideoOrientation = AVCaptureVideoOrientation.Portrait;
using (var pixelBuffer = sampleBuffer.GetImageBuffer () as CVPixelBuffer) {
if (bytes == null)
bytes = new byte [pixelBuffer.Height * pixelBuffer.BytesPerRow];
pixelBuffer.Lock (0);
Marshal.Copy (pixelBuffer.BaseAddress, bytes, 0, bytes.Length);
luminance = new RGBLuminanceSource (bytes, pixelBuffer.Width, pixelBuffer.Height);
pixelBuffer.Unlock (0);
}
var binarized = new BinaryBitmap (new HybridBinarizer (luminance));
var result = reader.decodeWithState (binarized);
//parent.session.StopRunning ();
gotResult = true;
if (parent.Scan != null)
parent.Scan (result);
}
} catch (ReaderException) {
// ignore this exception; it happens every time there is a failed scan
} catch (Exception e) {
// TODO: this one is unexpected.. log or otherwise handle it
throw;
} finally {
try {
// lamest thing, but seems that this throws :(
sampleBuffer.Dispose ();
} catch { }
}
}
private void open_Click(object sender, EventArgs e)
{
if (p1.Visible == true)
{
if (this.openFileDialog1.ShowDialog() != DialogResult.OK)
{
return;
}
string path = this.openFileDialog1.FileName;
openFileDialog1.DefaultExt = "*.txt";
openFileDialog1.Filter = "*.txt|";
if (path.EndsWith(".txt"))
{
string content = File.ReadAllText(path, Encoding.Default);
this.txtContent.Text = content;
}
else
{
MessageBox.Show("只能读取txt文件", "提示", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
else
{
if (this.openFileDialog1.ShowDialog() != DialogResult.OK)
{
return;
}
string path = this.openFileDialog1.FileName;
if (!path.EndsWith(".png"))
{
MessageBox.Show("图像格式不正确，只能读取png文件", "提示", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
else
{
Image img = Image.FromFile(path);
Bitmap bmap;
try
{
bmap = new Bitmap(img);
}
catch (System.IO.IOException ioe)
{
MessageBox.Show(ioe.ToString());
return;
}
if (bmap == null)
{
MessageBox.Show("Could not decode image");
return;
}
else
{
this.picOpenQr.Image = bmap;
}
LuminanceSource source = new RGBLuminanceSource(bmap, bmap.Width, bmap.Height);
com.google.zxing.BinaryBitmap bitmap = new com.google.zxing.BinaryBitmap(new com.google.zxing.common.HybridBinarizer(source));
Result result;
try
{
result = new MultiFormatReader().decode(bitmap);
}
catch (ReaderException re)
{
MessageBox.Show(re.ToString());
return;
}
this.txtDencoder.Text = (result.Text);
}
}
}
private void ScanPreviewBuffer()
{
try
{
_photoCamera.GetPreviewBufferY(_luminance.PreviewBufferY);
var binarizer = new HybridBinarizer(_luminance);
var binBitmap = new BinaryBitmap(binarizer);
Result result = _reader.decode(binBitmap);
if (result != null)
{
_timer.Stop();
SetStillPicture();
BarCodeRectSuccess();
Dispatcher.BeginInvoke(() =>
{
if (WebHelper.Instance.InternetIsAvailableNotify())
{
NavigationService.Navigate(new Uri("/BookDetailPanoramaPage.xaml?isbn=" + result.Text, UriKind.Relative));
}
else
{
if (NavigationService.CanGoBack)
NavigationService.GoBack();
}
});
}
else
{
_photoCamera.Focus();
}
}
catch
{
}
}
private void ScanPreviewBuffer()
{
string returnedString = null;
photoCamera.GetPreviewBufferY(luminance.PreviewBufferY);
var binarizer = new HybridBinarizer(luminance);
var binBitmap = new BinaryBitmap(binarizer);
var img = GetImage(luminance.PreviewBufferY);
WP7BarcodeManager.ScanBarcode(img, result =>
{
Debug.WriteLine(result.BarcodeImage);
});
try
{
var result = ean13Reader.decode(binBitmap);
returnedString = result.Text;
Debug.WriteLine("EAN13 " + returnedString);
return;
}
catch(Exception ex)
{
}
try
{
var result = qrReader.decode(binBitmap);
returnedString = result.Text;
Debug.WriteLine("QR " + returnedString);
return;
}
catch (Exception ex)
{
}
try
{
var result = code39Reader.decode(binBitmap);
returnedString = result.Text;
Debug.WriteLine("CODE39 " + returnedString);
return;
}
catch (Exception ex)
{
}
}
private Result decodeInternal(BinaryBitmap image)
{
int size = readers.Count;
for (int i = 0; i < size; i++)
{
Reader reader = (Reader) readers[i];
try
{
return reader.decode(image, hints);
}
catch (ReaderException re)
{
// continue
}
}
throw ReaderException.Instance;
}
private void Scan()
{
if (IsScanning && _initialized && _photoCamera != null && _luminanceSource != null && _reader != null)
{
try
{
// 2-2-2012 - Rowdy.nl
// Focus the camera for better recognition of QR code's
if (_photoCamera.IsFocusSupported)
_photoCamera.Focus();
// End Rowdy.nl
_photoCamera.GetPreviewBufferY(_luminanceSource.PreviewBufferY);
var binarizer = new HybridBinarizer(_luminanceSource);
var binaryBitmap = new BinaryBitmap(binarizer);
var result = _reader.decode(binaryBitmap, QRCodeHint);
StopScanning();
OnResult(result);
}
catch (ReaderException)
{
// There was not a successful QR code read in the scan
// pass. Invoke and try again soon.
Dispatcher.BeginInvoke(Scan);
}
catch (Exception ex)
{
OnError(ex);
}
}
}
/// <summary> Decode an image using the state set up by calling setHints() previously. Continuous scan
/// clients will get a <b>large</b> speed increase by using this instead of decode().
///
/// </summary>
/// <param name="image">The pixel data to decode
/// </param>
/// <returns> The contents of the image
/// </returns>
/// <throws> ReaderException Any errors which occurred </throws>
public Result decodeWithState(BinaryBitmap image)
{
// Make sure to set up the default state so we don't crash
if (readers == null)
{
Hints = null;
}
return decodeInternal(image);
}
// added by .net follower (http://dotnetfollower.com)
/// <summary> Decode an image using the hints provided. Does not honor existing state.
///
/// </summary>
/// <param name="image">The pixel data to decode
/// </param>
/// <param name="hints">The hints to use, clearing the previous state.
/// </param>
/// <returns> The contents of the image
/// </returns>
/// <throws> ReaderException Any errors which occurred </throws>
// 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)
{
Hints = hints;
return decodeInternal(image);
}
/// <summary> This version of decode honors the intent of Reader.decode(BinaryBitmap) in that it
/// passes null as a hint to the decoders. However, that makes it inefficient to call repeatedly.
/// Use setHints() followed by decodeWithState() for continuous scan applications.
///
/// </summary>
/// <param name="image">The pixel data to decode
/// </param>
/// <returns> The contents of the image
/// </returns>
/// <throws> ReaderException Any errors which occurred </throws>
public Result decode(BinaryBitmap image)
{
Hints = null;
return decodeInternal(image);
}
private void ScanPreviewBuffer()
{
try
{
_photoCamera.GetPreviewBufferY(_luminance.PreviewBufferY);
var binarizer = new HybridBinarizer(_luminance);
var binBitmap = new BinaryBitmap(binarizer);
Result result = _reader.decode(binBitmap);
if (result != null)
{
_timer.Stop();
SetStillPicture();
BarCodeRectSuccess();
Dispatcher.BeginInvoke(() =>
{
//读取成功，结果存放在result.Text
NavigationService.Navigate(new Uri("/ScanResult.xaml?result=" + result.Text, UriKind.Relative));
});
}
else
{
_photoCamera.Focus();
}
}
catch
{
}
}
/// Processes the specified bitmap.
public string Process(Bitmap bitmap)
{
try
{
com.google.zxing.LuminanceSource source = new RGBLuminanceSource(bitmap, bitmap.Width, bitmap.Height);
var binarizer = new HybridBinarizer(source);
var binBitmap = new BinaryBitmap(binarizer);
return reader.decode(binBitmap).Text;
}
catch
{
return string.Empty;
}
}