protected override void OnCreate(Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
// _licensePlateDetector = new LicensePlateDetector("x64/");
_licensePlateDetector = new LicensePlateDetector(ocrPath + System.IO.Path.DirectorySeparatorChar);
// Set our view from the "main" layout resource
SetContentView(Resource.Layout.Main);
_imageView = FindViewById <ImageView>(Resource.Id.imageView1);
Button loadPictureBtn = FindViewById <Button>(Resource.Id.LoadPictureBtn);
loadPictureBtn.Click += LoadPicture;
Button tesseractBtn = FindViewById <Button>(Resource.Id.TesseractBtn);
tesseractBtn.Click += ExecuteTesseract;
if (IsThereAnAppToTakePictures())
{
CreateDirectoryForPictures();
Button takePicture = FindViewById <Button>(Resource.Id.TakePictureBtn);
takePicture.Click += TakeAPicture;
}
_sensorManager = (SensorManager)GetSystemService(SensorService);
battery = (BatteryManager)GetSystemService(BatteryService);
}
public PhotoLPRWindow()
{
InitializeComponent();
_userManagement = new UserManager();
_fileParser = new FileParser();
_licensePlateDetector = new LicensePlateDetector(@"C:\Emgu\emgucv-windesktop_x64-cuda 3.1.0.2504\Emgu.CV.World\tessdata");
}
public LicensePlateRecognitionForm()
{
InitializeComponent();
_licensePlateDetector = new LicensePlateDetector("");
Mat m = new Mat("E:\\C#\\高级程序设计\\图像处理\\王先文高级程序设计\\Image+Processing\\Image Processing\\Image Processing\\license-plate.jpg");
UMat um = m.GetUMat(AccessType.ReadWrite);
imageBox1.Image = um;
ProcessImage(m);
}
public MainWindow()
{
InitializeComponent();
for (var i = 1; i < 15; i++)
{
ListView1.Items.Add(new ParkingEntry {
Name = $"Person #{i}", PlateNumber = $"Plate #{i}", DateEntry = DateTime.Now, DateExit = DateTime.Now.AddHours(i)
});
}
var path = System.IO.Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);
var folder = System.IO.Path.Combine(path, "tessdata");
_licensePlateDetector = new LicensePlateDetector(folder);
Mat m = new Mat(@"C:\Users\cayent\Desktop\ImageTest\222.jpg");
UMat um = m.GetUMat(AccessType.ReadWrite);
this.ImagePlate.Image = um;
//ProcessImage(m);
_ocr = new Tesseract(folder, "eng", OcrEngineMode.TesseractLstmCombined, "ABCDEFGHIJKLMNOPQRSTUVWXYZ 1234567890");
_ocr.SetVariable("tessedit_char_whitelist", "ABCDEFGHIJKLMNOPQRSTUVWXYZ-1234567890");
//create OCR engine
//_ocr = new Tesseract(System.AppDomain.CurrentDomain.BaseDirectory + @"\Data\\", "eng", OcrEngineMode.TesseractLstmCombined);
//_ocr.Init("", "eng", OcrEngineMode.TesseractLstmCombined);
//_ocr.SetVariable("tessedit_char_whitelist", "ABCDEFGHIJKLMNOPQRSTUVWXYZ-1234567890");
_ocr.SetImage(m);
_ocr.Recognize();
var text1 = _ocr.GetBoxText();
var text2 = _ocr.GetCharacters();
var text3 = _ocr.GetHOCRText();
//var text4 = _ocr.GetOsdText(1);
var text5 = _ocr.GetTSVText();
var text6 = _ocr.GetUNLVText();
var text7 = _ocr.GetUTF8Text();
Plate.Text = text7;
}
public UploadFile ProcessImage(IInputOutputArray image)
{
string path = AppContext.BaseDirectory;
string base64string = string.Empty;
UploadFile uploadFile = new UploadFile();
LicensePlateDetector _licensePlateDetector = new LicensePlateDetector(path);
List <IInputOutputArray> licensePlateImagesList = new List <IInputOutputArray>();
List <IInputOutputArray> filteredLicensePlateImagesList = new List <IInputOutputArray>();
List <RotatedRect> licenseBoxList = new List <RotatedRect>();
List <string> words = _licensePlateDetector.DetectLicensePlate(
image,
licensePlateImagesList,
filteredLicensePlateImagesList,
licenseBoxList);
Point startPoint = new Point(10, 10);
for (int i = 0; i < words.Count; i++)
{
Mat dest = new Mat();
CvInvoke.VConcat(licensePlateImagesList[i], filteredLicensePlateImagesList[i], dest);
PointF[] verticesF = licenseBoxList[i].GetVertices();
Point[] vertices = Array.ConvertAll(verticesF, Point.Round);
using (VectorOfPoint pts = new VectorOfPoint(vertices))
CvInvoke.Polylines(image, pts, true, new Bgr(Color.Red).MCvScalar, 2);
UMat mat = (UMat)filteredLicensePlateImagesList[i];
Image <Bgr, byte> LpImage = mat.ToImage <Bgr, byte>();
byte[] LpBytes = LpImage.ToJpegData();
uploadFile.RawData.Add(new RawData {
RawImage = "data:image/jpg;base64," + Convert.ToBase64String(LpBytes, 0, LpBytes.Length), Number = words[i]
});
}
using (Image <Bgr, byte> img = (Image <Bgr, byte>)image)
{
Byte[] bytes = img.ToJpegData();
base64string = "data:image/jpg;base64," + Convert.ToBase64String(bytes, 0, bytes.Length);
uploadFile.OutputFile = base64string;
}
return(uploadFile);
}
/*
* private static void TesseractDownloadLangFile(String folder, String lang)
* {
* String subfolderName = "tessdata";
* String folderName = System.IO.Path.Combine(folder, subfolderName);
* if (!System.IO.Directory.Exists(folderName))
* {
* System.IO.Directory.CreateDirectory(folderName);
* }
* String dest = System.IO.Path.Combine(folderName, String.Format("{0}.traineddata", lang));
* if (!System.IO.File.Exists(dest))
* using (System.Net.WebClient webclient = new System.Net.WebClient())
* {
* String source =
* String.Format("https://github.com/tesseract-ocr/tessdata/blob/4592b8d453889181e01982d22328b5846765eaad/{0}.traineddata?raw=true", lang);
*
* Console.WriteLine(String.Format("Downloading file from '{0}' to '{1}'", source, dest));
* webclient.DownloadFile(source, dest);
* Console.WriteLine(String.Format("Download completed"));
* }
* }*/
public override void ViewDidLoad()
{
base.ViewDidLoad();
RootElement root = Root;
root.UnevenRows = true;
UIImageView imageView = new UIImageView(View.Frame);
StringElement messageElement = new StringElement("");
StringElement licenseElement = new StringElement("");
root.Add(new Section()
{
new StyledStringElement("Process", delegate
{
String path = "tessdata";
messageElement.Value = String.Format("Checking Tesseract language data...");
try
{
LicensePlateDetector.TesseractDownloadLangFile(path, "eng");
LicensePlateDetector.TesseractDownloadLangFile(path, "osd");
}
catch (System.Net.WebException)
{
messageElement.Value =
String.Format(
"Failed to download Tesseract language file, please check internet connection.");
return;
}
catch (Exception e)
{
messageElement.Value = e.Message;
return;
}
messageElement.Value = String.Format("Checking Tesseract language data...");
using (Image <Bgr, Byte> image = new Image <Bgr, byte>("license-plate.jpg"))
{
LicensePlateDetector detector = new LicensePlateDetector(path);
Stopwatch watch = Stopwatch.StartNew(); // time the detection process
List <IInputOutputArray> licensePlateImagesList = new List <IInputOutputArray>();
List <IInputOutputArray> filteredLicensePlateImagesList = new List <IInputOutputArray>();
List <RotatedRect> licenseBoxList = new List <RotatedRect>();
List <string> words = detector.DetectLicensePlate(
image,
licensePlateImagesList,
filteredLicensePlateImagesList,
licenseBoxList);
watch.Stop(); //stop the timer
messageElement.Value = String.Format("{0} milli-seconds", watch.Elapsed.TotalMilliseconds);
StringBuilder builder = new StringBuilder();
foreach (String w in words)
{
builder.AppendFormat("{0} ", w);
}
licenseElement.Value = builder.ToString();
messageElement.GetImmediateRootElement().Reload(messageElement, UITableViewRowAnimation.Automatic);
licenseElement.GetImmediateRootElement().Reload(licenseElement, UITableViewRowAnimation.Automatic);
foreach (RotatedRect box in licenseBoxList)
{
image.Draw(box, new Bgr(Color.Red), 2);
}
Size frameSize = FrameSize;
using (Mat resized = new Mat())
{
CvInvoke.ResizeForFrame(image, resized, frameSize);
imageView.Image = resized.ToUIImage();
imageView.Frame = new RectangleF(PointF.Empty, resized.Size);
}
imageView.SetNeedsDisplay();
ReloadData();
}
}
)
});
root.Add(new Section("Recognition Time")
{
messageElement
});
root.Add(new Section("License Plate")
{
licenseElement
});
root.Add(new Section()
{
imageView
});
}
public override void ViewDidLoad()
{
base.ViewDidLoad();
RootElement root = Root;
root.UnevenRows = true;
UIImageView imageView = new UIImageView(View.Frame);
StringElement messageElement = new StringElement("");
StringElement licenseElement = new StringElement("");
root.Add(new Section()
{
new StyledStringElement("Process", delegate {
using (Image <Bgr, Byte> image = new Image <Bgr, Byte>("license-plate.jpg"))
{
LicensePlateDetector detector = new LicensePlateDetector(".");
Stopwatch watch = Stopwatch.StartNew(); // time the detection process
List <Image <Gray, Byte> > licensePlateImagesList = new List <Image <Gray, byte> >();
List <Image <Gray, Byte> > filteredLicensePlateImagesList = new List <Image <Gray, byte> >();
List <RotatedRect> licenseBoxList = new List <RotatedRect>();
List <string> words = detector.DetectLicensePlate(
image,
licensePlateImagesList,
filteredLicensePlateImagesList,
licenseBoxList);
watch.Stop(); //stop the timer
messageElement.Value = String.Format("{0} milli-seconds", watch.Elapsed.TotalMilliseconds);
StringBuilder builder = new StringBuilder();
foreach (String w in words)
{
builder.AppendFormat("{0} ", w);
}
licenseElement.Value = builder.ToString();
messageElement.GetImmediateRootElement().Reload(messageElement, UITableViewRowAnimation.Automatic);
licenseElement.GetImmediateRootElement().Reload(licenseElement, UITableViewRowAnimation.Automatic);
foreach (RotatedRect box in licenseBoxList)
{
image.Draw(box, new Bgr(Color.Red), 2);
}
Size frameSize = FrameSize;
using (Image <Bgr, byte> resized = image.Resize(frameSize.Width, frameSize.Height, Emgu.CV.CvEnum.Inter.Cubic, true))
{
imageView.Image = resized.ToUIImage();
imageView.Frame = new RectangleF(PointF.Empty, resized.Size);
}
imageView.SetNeedsDisplay();
ReloadData();
}
}
)
});
root.Add(new Section("Recognition Time")
{
messageElement
});
root.Add(new Section("License Plate")
{
licenseElement
});
root.Add(new Section()
{
imageView
});
}
protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);
OnImagePicked += (sender, image) =>
{
if (image == null)
{
return;
}
ISharedPreferences preference = PreferenceManager.GetDefaultSharedPreferences(ApplicationContext);
String appVersion = PackageManager.GetPackageInfo(PackageName, Android.Content.PM.PackageInfoFlags.Activities).VersionName;
if (!preference.Contains("tesseract-data-version") || !preference.GetString("tesseract-data-version", null).Equals(appVersion) ||
!preference.Contains("tesseract-data-path"))
{
AndroidFileAsset.OverwriteMethod overwriteMethod = AndroidFileAsset.OverwriteMethod.AlwaysOverwrite;
FileInfo a8 = AndroidFileAsset.WritePermanantFileAsset(this, "tessdata/eng.traineddata", "tmp", overwriteMethod);
FileInfo a0 = AndroidFileAsset.WritePermanantFileAsset(this, "tessdata/eng.cube.bigrams", "tmp", overwriteMethod);
FileInfo a1 = AndroidFileAsset.WritePermanantFileAsset(this, "tessdata/eng.cube.fold", "tmp", overwriteMethod);
FileInfo a2 = AndroidFileAsset.WritePermanantFileAsset(this, "tessdata/eng.cube.lm", "tmp", overwriteMethod);
FileInfo a3 = AndroidFileAsset.WritePermanantFileAsset(this, "tessdata/eng.cube.nn", "tmp", overwriteMethod);
FileInfo a4 = AndroidFileAsset.WritePermanantFileAsset(this, "tessdata/eng.cube.params", "tmp", overwriteMethod);
FileInfo a5 = AndroidFileAsset.WritePermanantFileAsset(this, "tessdata/eng.cube.size", "tmp", overwriteMethod);
FileInfo a6 = AndroidFileAsset.WritePermanantFileAsset(this, "tessdata/eng.cube.word-freq", "tmp", overwriteMethod);
FileInfo a7 = AndroidFileAsset.WritePermanantFileAsset(this, "tessdata/eng.tesseract_cube.nn", "tmp", overwriteMethod);
//save tesseract data path
ISharedPreferencesEditor editor = preference.Edit();
editor.PutString("tesseract-data-version", appVersion);
editor.PutString("tesseract-data-path", System.IO.Path.Combine(a0.DirectoryName, "..") + System.IO.Path.DirectorySeparatorChar);
editor.Commit();
}
LicensePlateDetector detector = new LicensePlateDetector(preference.GetString("tesseract-data-path", null));
Stopwatch watch = Stopwatch.StartNew(); // time the detection process
List <IInputOutputArray> licensePlateImagesList = new List <IInputOutputArray>();
List <IInputOutputArray> filteredLicensePlateImagesList = new List <IInputOutputArray>();
List <RotatedRect> licenseBoxList = new List <RotatedRect>();
List <string> words = detector.DetectLicensePlate(
image,
licensePlateImagesList,
filteredLicensePlateImagesList,
licenseBoxList);
watch.Stop(); //stop the timer
StringBuilder builder = new StringBuilder();
builder.Append(String.Format("{0} milli-seconds. ", watch.Elapsed.TotalMilliseconds));
foreach (String w in words)
{
builder.AppendFormat("{0} ", w);
}
SetMessage(builder.ToString());
foreach (RotatedRect box in licenseBoxList)
{
Rectangle rect = box.MinAreaRect();
CvInvoke.Rectangle(image, rect, new Bgr(System.Drawing.Color.Red).MCvScalar, 2);
}
SetImageBitmap(image.ToBitmap());
image.Dispose();
};
OnButtonClick += delegate
{
PickImage("license-plate.jpg");
};
}
public MainViewModel()
{
string path = Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location);
_licensePlateDetector = new LicensePlateDetector(path + "\\..\\..\\..\\..\\tessdata");
}
/*
* private static void TesseractDownloadLangFile(String folder, String lang)
* {
* String subfolderName = "tessdata";
* String folderName = System.IO.Path.Combine(folder, subfolderName);
* if (!System.IO.Directory.Exists(folderName))
* {
* System.IO.Directory.CreateDirectory(folderName);
* }
* String dest = System.IO.Path.Combine(folderName, String.Format("{0}.traineddata", lang));
* if (!System.IO.File.Exists(dest))
* using (System.Net.WebClient webclient = new System.Net.WebClient())
* {
* String source = Emgu.CV.OCR.Tesseract.GetLangFileUrl(lang);
*
* Console.WriteLine(String.Format("Downloading file from '{0}' to '{1}'", source, dest));
* webclient.DownloadFile(source, dest);
* Console.WriteLine(String.Format("Download completed"));
* }
* }*/
protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);
OnImagePicked += (sender, image) =>
{
if (image == null)
{
return;
}
String path = System.IO.Path.Combine(this.FilesDir.AbsolutePath, "tessdata");
try
{
SetProgressMessage("Checking Tesseract Lang files...");
LicensePlateDetector.TesseractDownloadLangFile(path, "eng");
LicensePlateDetector.TesseractDownloadLangFile(path, "osd");
SetProgressMessage("Please wait ...");
}
catch (System.Net.WebException e)
{
SetMessage("Unable to download tesseract language file from Internet, please check your Internet connection.");
Console.WriteLine(e);
return;
}
catch (Exception e)
{
SetMessage(e.ToString());
Console.WriteLine(e);
return;
}
LicensePlateDetector detector = new LicensePlateDetector(path + System.IO.Path.DirectorySeparatorChar);
Stopwatch watch = Stopwatch.StartNew(); // time the detection process
List <IInputOutputArray> licensePlateImagesList = new List <IInputOutputArray>();
List <IInputOutputArray> filteredLicensePlateImagesList = new List <IInputOutputArray>();
List <RotatedRect> licenseBoxList = new List <RotatedRect>();
List <string> words = detector.DetectLicensePlate(
image,
licensePlateImagesList,
filteredLicensePlateImagesList,
licenseBoxList);
watch.Stop(); //stop the timer
StringBuilder builder = new StringBuilder();
builder.Append(String.Format("{0} milli-seconds. ", watch.Elapsed.TotalMilliseconds));
foreach (String w in words)
{
builder.AppendFormat("{0} ", w);
}
SetMessage(builder.ToString());
foreach (RotatedRect box in licenseBoxList)
{
Rectangle rect = box.MinAreaRect();
CvInvoke.Rectangle(image, rect, new Bgr(System.Drawing.Color.Red).MCvScalar, 2);
}
SetImageBitmap(image.ToBitmap());
image.Dispose();
};
OnButtonClick += delegate
{
PickImage("license-plate.jpg");
};
}
public void LicensePlateDetectorTest()
{
var objectTest = new LicensePlateDetector(@"D:\Downloads\LicencePlateRecognition\GUI-Prototype\testData\image002.png");
objectTest.DetectLicensePlate()
}
