public void DetectAndDecode()
{
using var obj = new QRCodeDetector();
int x = 100;
int y = 200;
using var withQr = ImageWithQrCode(x, y, out int w, out int h);
ShowImagesWhenDebugMode(withQr);
using var straightQrCode = new Mat();
var decodedString = obj.DetectAndDecode(withQr, out var points, straightQrCode);
Assert.Equal(4, points.Length);
Assert.Equal(102, points[0].X);
Assert.Equal(201, points[0].Y);
Assert.Equal(199, points[1].X);
Assert.Equal(201, points[1].Y);
Assert.Equal(199, points[2].X);
Assert.Equal(299, points[2].Y);
Assert.Equal(102, points[3].X);
Assert.Equal(299, points[3].Y);
Assert.False(straightQrCode.Empty());
Assert.Equal("https://github.com/opencv/opencv", decodedString);
}
static void Main(string[] args)
{
using var straightQrCode = new Mat();
var qr = new QRCodeDetector();
var capture = new VideoCapture();
capture.Open(0);
using (var normalWindow = new Window("QRCode"))
{
var normalFrame = new Mat();
var srFrame = new Mat();
while (true)
{
capture.Read(normalFrame);
normalWindow.ShowImage(normalFrame);
var QRCodeContent = qr.DetectAndDecode(normalFrame, out var point);
if (QRCodeContent != "")
{
Console.WriteLine(QRCodeContent);
}
Cv2.WaitKey(500);
}
}
}
public static void QrCodeTest()
{
Glb.DrawMatAndHist0(Glb.matSrc);
var matGray = Glb.matSrc.CvtColor(ColorConversionCodes.BGR2GRAY);
Glb.DrawMatAndHist1(matGray);
QRCodeDetector detector = new QRCodeDetector();
Point2f[] points;
string text = detector.DetectAndDecode(matGray, out points);
Console.WriteLine("points : " + string.Join(",", points.Select(pt => pt.ToString())));
Console.WriteLine(text);
var matRet = matGray.CvtColor(ColorConversionCodes.GRAY2BGR);
var pts = points.Select(pt => new OpenCvSharp.Point(pt.X, pt.Y));
var ptss = Enumerable.Repeat(pts, 1);
matRet.Polylines(ptss, true, Scalar.Lime);
Glb.DrawMatAndHist2(matRet);
matGray.Dispose();
matRet.Dispose();
}
public void DecodeMultibyteString()
{
using var obj = new QRCodeDetector();
using var withQr = Image("qr_multibyte_letters.png");
var decodedString = obj.DetectAndDecode(withQr, out var points);
Assert.Equal(4, points.Length);
Assert.Equal("Helloこんにちは你好안녕하세요", decodedString);
}
public void DecodeSinglebyteString()
{
using var obj = new QRCodeDetector();
using var withQr = Image("qr_singlebyte_letters.png");
var decodedString = obj.DetectAndDecode(withQr, out var points);
Assert.Equal(4, points.Length);
Assert.Equal("0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ!\"#$%&'()*+,-./:;<=>?@[]^_`{|}", decodedString);
}
public static string DecodeQR(string inputImagePath)
{
Mat inputImage = new Mat(inputImagePath);
QRCodeDetector qrDecoder = new QRCodeDetector();
Point2f[] point2Fs;
string data = qrDecoder.DetectAndDecode(inputImage, out point2Fs);
if (data.Length > 0)
{
Display(inputImage, point2Fs, inputImagePath);
inputImage.Dispose();
qrDecoder.Dispose();
return(data);
}
else
{
throw new Exception("QR Not Found");
inputImage.Dispose();
qrDecoder.Dispose();
}
}
private void OpenCv_TimerTick(Object sender, EventArgs e)
{
//Vérifier l'adresse de la caméra
//On a utilisé un routeur
cameraNXT1.Open("http://192.168.0.101:8080/video");
//cameraNXT2.Open(0);
if (cameraNXT1.IsOpened())
{
Console.WriteLine("NXT1 open");
int essais = 0;
while (essais != 10)
{
cameraNXT1.Read(frameNXT1);
string decodeDataNXT1 = qrdecoderNXT1.DetectAndDecode(frameNXT1, out Point2f[] bbox);
//Cv2.ImShow("NXT1", frameNXT1);
//Cv2.WaitKey(30);
if (decodeDataNXT1.Length > 0)
{
Console.WriteLine("detecte");
Regex rg = new Regex(@"\d+");
List <string> arr = new List <string>();
MatchCollection mc = rg.Matches(decodeDataNXT1);
foreach (Match i in mc)
{
arr.Add(i.ToString());
}
double lengthPixl = bbox[0].DistanceTo(bbox[1]);
int lengthReel = Convert.ToInt32(arr[1]);
double distance = (foucale * lengthReel) / lengthPixl;
Console.WriteLine(distance);
//Distance;
txtData.Rows[0].Cells[1].Value = distance; //NXT1
//Beta
txtData.Rows[1].Cells[1].Value = arr[2];
//QrNum
txtData.Rows[2].Cells[1].Value = arr[0];
break;
}
essais++;
}
cameraNXT1.Release();
}
//S'inspirer du programme au-dessus pour le NXT2
/* if (cameraNXT2.IsOpened())
* {
* cameraNXT2.Read(frameNXT2);
* string decodeDataNXT2 = qrdecoderNXT1.DetectAndDecode(frameNXT1, out Point2f[] bboxNXT2);
* //Cv2.ImShow("NXT2", frameNXT2);
* //Cv2.WaitKey(30);
* if (decodeDataNXT2.Length > 0)
* {
* Regex rg = new Regex(@"\d+");
* List<string> arr = new List<string>();
* MatchCollection mc = rg.Matches(decodeDataNXT2);
* foreach (Match i in mc)
* arr.Add(i.ToString());
* //Distance;
* txtData.Rows[0].Cells[2].Value = arr[1]; //NXT2
* //Beta
* txtData.Rows[1].Cells[2].Value = arr[0];
* //QrNum
* txtData.Rows[2].Cells[2].Value = arr[1];
* }
* }*/
}