public virtual void ProcessImage(Emgu.CV.Image<Emgu.CV.Structure.Bgr, byte> image) {
Emgu.CV.Image<Gray, byte> gray = image.Convert<Gray, byte>();
gray._ThresholdBinary(new Gray(_threshold), new Gray(255.0));
gray._Not();
Parsley.Core.EllipseDetector ed = new Parsley.Core.EllipseDetector();
ed.MinimumContourCount = _min_contour_count;
List < Parsley.Core.DetectedEllipse > ellipses =
new List<Parsley.Core.DetectedEllipse>(ed.DetectEllipses(gray));
List < Parsley.Core.DetectedEllipse > finals =
new List<Parsley.Core.DetectedEllipse>(
ellipses.Where(e => { return e.Rating < _distance_threshold; })
);
finals.Sort(
(a, b) => {
double dista = a.Ellipse.MCvBox2D.center.X * a.Ellipse.MCvBox2D.center.X + a.Ellipse.MCvBox2D.center.Y * a.Ellipse.MCvBox2D.center.Y;
double distb = b.Ellipse.MCvBox2D.center.X * b.Ellipse.MCvBox2D.center.X + b.Ellipse.MCvBox2D.center.Y * b.Ellipse.MCvBox2D.center.Y;
return dista.CompareTo(distb);
}
);
Bgr bgr = new Bgr(0, 255, 0);
MCvFont f = new MCvFont(Emgu.CV.CvEnum.FONT.CV_FONT_HERSHEY_PLAIN, 0.8, 0.8);
int count = 1;
foreach (Parsley.Core.DetectedEllipse e in finals) {
image.Draw(e.Ellipse, bgr, 2);
image.Draw(count.ToString(), ref f, new System.Drawing.Point((int)e.Ellipse.MCvBox2D.center.X, (int)e.Ellipse.MCvBox2D.center.Y), bgr);
count++;
}
}
protected override void OnFrame(Parsley.Core.BuildingBlocks.FrameGrabber fp, Emgu.CV.Image<Emgu.CV.Structure.Bgr, byte> img) {
Core.CalibrationPattern pattern = _pattern;
if (pattern != null) {
Image<Gray, Byte> gray = img.Convert<Gray, Byte>();
pattern.FindPattern(gray);
this.UpdateStatusDisplay(pattern.PatternFound);
this.HandleCalibrateRequest();
this.HandleTakeImageRequest();
this.DrawCoordinateFrame(img);
pattern.DrawPattern(img, pattern.ImagePoints, pattern.PatternFound);
}
}
protected override void OnFrame(Parsley.Core.BuildingBlocks.FrameGrabber fp, Emgu.CV.Image<Emgu.CV.Structure.Bgr, byte> img)
{
Core.CalibrationPattern pattern = _pattern;
if (pattern != null)
{ //cari pola kalibrasi jika marker kalibrasi tersedia
Image<Gray, Byte> gray = img.Convert<Gray, Byte>(); //convert image to grayscale
pattern.FindPattern(gray); //cari pola kalibrasi
this.UpdateStatusDisplay(pattern.PatternFound);
this.HandleCalibrateRequest();
this.HandleTakeImageRequest();
this.DrawCoordinateFrame(img);
pattern.DrawPattern(img, pattern.ImagePoints, pattern.PatternFound); //gambar AR pada marker jika pattern ditemukan
}
}
override protected void OnFrame(Parsley.Core.BuildingBlocks.FrameGrabber fp, Emgu.CV.Image<Emgu.CV.Structure.Bgr, byte> img) {
Core.CalibrationPattern pattern = this.Context.CalibrationPattern;
Emgu.CV.Image<Gray, Byte> gray = img.Convert<Gray, Byte>();
gray._EqualizeHist();
pattern.FindPattern(gray);
if (pattern.PatternFound) {
Emgu.CV.ExtrinsicCameraParameters ecp = _ex.Calibrate(pattern.ImagePoints);
lock (Context.Viewer) {
Matrix m = Matrix.Identity(4, 4);
m.SetMatrix(0, 2, 0, 3, ecp.ExtrinsicMatrix.ToParsley());
_board_transform.Matrix = m.ToInterop();
}
}
pattern.DrawPattern(img, pattern.ImagePoints, pattern.PatternFound);
}
public List<FaceScored> FindFaces(Emgu.CV.Image<Emgu.CV.Structure.Bgr, byte> image, CascadeClassifier cascadeClassifierFace, CascadeClassifier cascadeClassifierEye)
{
List<FaceScored> currentFaces = new List<FaceScored>();
using (Image<Gray, Byte> gray = image.Convert<Gray, Byte>())
{
gray._EqualizeHist();
Size minFaceSize = new Size(minSizeFace , minSizeFace );
Size maxFaceSize = new Size(maxSizeFace , maxSizeFace );
Size minEyeSize = new Size(minSizeEye , minSizeEye );
Size maxEyeSize = new Size(maxSizeEye , maxSizeEye );
Rectangle[] facesDetected = cascadeClassifierFace.DetectMultiScale(gray, scaleFace , neighborsFace , minFaceSize,maxFaceSize);
foreach (Rectangle f in facesDetected)
{
if (f.Width<35)
break;
gray.ROI = f;
Rectangle[] eyesDetected = cascadeClassifierEye.DetectMultiScale(gray, scaleEye, neighborsEye, minEyeSize, maxEyeSize);
if (eyesDetected.Count() >0){
FaceScored faceModel = new FaceScored();
faceModel.FaceImage = gray.Bitmap;
faceModel.FaceImageFullColr = image.GetSubRect(f).Bitmap;
faceModel.Height = faceModel.FaceImage.Height;
faceModel.Width = faceModel.FaceImage.Width;
faceModel.EyesCount = eyesDetected.Count();
Gray avgf = new Gray();
MCvScalar avstd = new MCvScalar();
gray.AvgSdv(out avgf, out avstd);
faceModel.StdDev = avstd.V0;
currentFaces.Add(faceModel);
if(currentFaces.Count%5==0)
Console.WriteLine("FaceDetect Add every 5 faceModel" + faceModel.Width);
break;
}
gray.ROI = Rectangle.Empty;
}
}
return currentFaces;
}
protected override void OnFrame(Parsley.Core.BuildingBlocks.FrameGrabber fp, Emgu.CV.Image<Emgu.CV.Structure.Bgr, byte> img) {
Parsley.Core.ExtrinsicCalibration ec;
ExtrinsicCameraParameters ecp;
bool pattern_found = false;
Core.CalibrationPattern p = _pattern;
if (p != null) {
Image<Gray, Byte> gray = img.Convert<Gray, Byte>();
pattern_found = p.FindPattern(gray);
p.DrawPattern(img, p.ImagePoints, p.PatternFound);
// if pattern has been found ==> find extrinsics and draw the corresponding coordinate frame
if (pattern_found == true && Context.Setup.Camera.Intrinsics != null)
{
ec = new Parsley.Core.ExtrinsicCalibration(p.ObjectPoints, Context.Setup.Camera.Intrinsics);
ecp = ec.Calibrate(p.ImagePoints);
if(ecp != null)
Core.Drawing.DrawCoordinateFrame(img, ecp, Context.Setup.Camera.Intrinsics);
}
}
base.OnFrame(fp, img);
}
/// <summary>
/// Find ellipses in image
/// </summary>
/// <param name="img">Image to search pattern for</param>
/// <param name="image_points">Detected centers</param>
/// <returns>True if pattern was found, false otherwise</returns>
public override bool FindPattern(Emgu.CV.Image<Gray, byte> img, out System.Drawing.PointF[] image_points) {
Emgu.CV.Image<Gray, byte> gray = img.Convert<Gray, byte>();
gray._ThresholdBinary(new Gray(_binary_threshold), new Gray(255.0));
gray._Not(); // Circles are black, black is considered backgroud, therefore flip.
Parsley.Core.EllipseDetector ed = new Parsley.Core.EllipseDetector();
ed.MinimumContourCount = this.MinimumContourCount;
// Detect initial ellipses
List<Parsley.Core.DetectedEllipse> ellipses =
new List<Parsley.Core.DetectedEllipse>(ed.DetectEllipses(gray));
// Filter out all ellipses below rating threshold
List<Parsley.Core.DetectedEllipse> finals =
new List<Parsley.Core.DetectedEllipse>(
ellipses.Where(e => { return e.Rating < this.MeanDistanceThreshold; })
);
// At least the number of required ellipses need to be found
if (finals.Count < _number_circle_centers.Width * _number_circle_centers.Height) {
image_points = new System.Drawing.PointF[0];
return false;
}
int[] marker_ids;
if (!FindMarkerEllipses(gray, finals, out marker_ids)) {
image_points = new System.Drawing.PointF[0];
return false;
}
// Check that all markers are found
if (marker_ids.Length != 4) {
image_points = new System.Drawing.PointF[0];
return false;
}
// Find intrinsic/extrinsic calibration matrices based on known marker correspondences
Emgu.CV.IntrinsicCameraParameters icp;
Emgu.CV.ExtrinsicCameraParameters ecp;
ApproximatePlane(finals, marker_ids, out icp, out ecp, img.Size);
// Project all object points to image points
MCvPoint3D32f[] converted_object_points = Array.ConvertAll(
this.ObjectPoints.ToArray(),
value => { return value.ToEmguF(); });
System.Drawing.PointF[] expected_image_points =
Emgu.CV.CameraCalibration.ProjectPoints(converted_object_points, ecp, icp);
image_points =
expected_image_points.Select(
e => { return NearestEllipseCenter(finals, e); }
).Where(
ne => { return Math.Sqrt(ne.dist2) < _ellipse_distance; }
).Select(
ne => { return ne.center; }
).ToArray();
// currently we need to detect all requested ellipses.
return image_points.Length == _number_circle_centers.Width * _number_circle_centers.Height;
}
protected override void OnFrame(Parsley.Core.BuildingBlocks.FrameGrabber fp, Emgu.CV.Image<Emgu.CV.Structure.Bgr, byte> img)
{
// Constraint checking
if (!Context.Setup.Camera.HasIntrinsics)
{
_on_roi = false;
return;
}
if (_interactor.State == Parsley.UI.InteractionState.Interacting)
{
_interactor.DrawIndicator(_interactor.Current, img);
}
else
{
_interactor.DrawIndicator(_r, img);
}
if (_on_roi && _pattern != null)
{
Image<Gray, Byte> gray = img.Convert<Gray, Byte>();
_pattern.IntrinsicParameters = Context.Setup.Camera.Intrinsics;
try
{
_pattern.FindPattern(gray, _r);
if (_pattern.PatternFound)
{
Parsley.Core.ExtrinsicCalibration ec = new Parsley.Core.ExtrinsicCalibration(_pattern.ObjectPoints, Context.Setup.Camera.Intrinsics);
ExtrinsicCameraParameters ecp = ec.Calibrate(_pattern.ImagePoints);
double[] deviations;
Vector[] points;
Core.ExtrinsicCalibration.CalibrationError(ecp,Context.Setup.Camera.Intrinsics,_pattern.ImagePoints,
_pattern.ObjectPoints,out deviations,out points);
double max_error = deviations.Max();
if (max_error < _last_error)
{
_last_detected_plane = ecp;
_last_error = max_error;
this.Logger.Info(String.Format("Extrinsics successfully calculated. Maximum error {0:F3}", _last_error));
}
}
else if (!_pattern.PatternFound & _last_detected_plane == null)
{
this.Logger.Warn("Pattern not found.");
}
}
catch (System.Exception e)
{
this.Logger.Warn(String.Format("Failed to determine extrinsic calibration: {0}", e.Message));
}
}
if (_last_detected_plane != null)
{
Core.Drawing.DrawCoordinateFrame(img, _last_detected_plane, Context.Setup.Camera.Intrinsics);
}
}
public void ProcessImage(Emgu.CV.Image<Emgu.CV.Structure.Bgr, byte> image) {
Emgu.CV.Image<Gray, byte> gray = image.Convert<Gray, byte>();
Emgu.CV.Image<Gray, byte> binary = new Image<Gray,byte>(image.Size);
CvInvoke.cvThreshold(gray, binary, 40, 255, THRESH.CV_THRESH_BINARY | THRESH.CV_THRESH_OTSU);
binary._Not();
Emgu.CV.Contour<System.Drawing.Point> contour_points = binary.FindContours();
MemStorage storage = new MemStorage();
Matrix<double> warp = new Matrix<double>(3, 3);
while (contour_points != null) {
Contour<Point> c = contour_points.ApproxPoly(contour_points.Perimeter * 0.05, storage);
double p = c.Perimeter;
if (c.Total == 4 && p > 300) {
PointF[] src = new PointF[] {
new PointF(c[0].X, c[0].Y),
new PointF(c[1].X, c[1].Y),
new PointF(c[2].X, c[2].Y),
new PointF(c[3].X, c[3].Y)};
CvInvoke.cvGetPerspectiveTransform(src, _dest, warp);
int flags = (int)INTER.CV_INTER_LINEAR + (int)WARP.CV_WARP_FILL_OUTLIERS;
CvInvoke.cvWarpPerspective(gray, _roi, warp, flags, new MCvScalar(0));
double min_error;
Orientation orient;
FindBestOrientation(out min_error, out orient);
if (min_error < 0.4) {
image.DrawPolyline(c.ToArray(), true, new Bgr(Color.Green), 2);
System.Console.WriteLine(min_error + " " + orient);
switch (orient) {
case Orientation.Degrees0:
image.Draw(new LineSegment2D(c[0], c[3]), new Bgr(System.Drawing.Color.Red), 2);
break;
case Orientation.Degrees90:
image.Draw(new LineSegment2D(c[1], c[0]), new Bgr(System.Drawing.Color.Red), 2);
break;
case Orientation.Degrees180:
image.Draw(new LineSegment2D(c[2], c[1]), new Bgr(System.Drawing.Color.Red), 2);
break;
case Orientation.Degrees270:
image.Draw(new LineSegment2D(c[3], c[2]), new Bgr(System.Drawing.Color.Red), 2);
break;
}
}
// 0 degrees
}
contour_points = contour_points.HNext;
}
}
public List<Face> FindFaces(Emgu.CV.Image<Emgu.CV.Structure.Bgr, byte> image, string faceFileName, string eyeFileName, double scale, int neighbors, int minSize)
{
List<Face> faces = new List<Face>();
List<Rectangle> facesRect = new List<Rectangle>();
List<Rectangle> eyesRect = new List<Rectangle>();
try
{
using (CascadeClassifier face = createClassifier(faceFileName))
{
using (Image<Gray, Byte> gray = image.Convert<Gray, Byte>())
{
gray._EqualizeHist();
Rectangle[] facesDetected = face.DetectMultiScale(gray, scale, neighbors, new Size(minSize, minSize), Size.Empty);
foreach (Rectangle f in facesDetected)
{
using (Image<Gray, Byte> faceImg = gray.GetSubRect(f))
{
using (Image<Gray, Byte> clone = faceImg.Clone())
{
Face facemodel = new Face();
eyesRect = new List<Rectangle>(FindEyes(eyeFileName, clone));
if (eyesRect != null && eyesRect.Count>0)
{
facemodel.EyesRects = eyesRect;
facemodel.EyesCount = eyesRect.Count;
}
else
{
continue;
}
facemodel.FaceImage = clone.Bitmap;
facemodel.Height = facemodel.FaceImage.Height;
facemodel.Width = facemodel.FaceImage.Width;
facemodel.FaceRect = f;
facemodel.FramePosX = f.X;
facemodel.FramePosY = f.Y;
facemodel.ImageFrameSize = image.Size;
Gray avgf = new Gray();
MCvScalar avstd = new MCvScalar();
clone.AvgSdv(out avgf, out avstd);
facemodel.StdDev = avstd.V0;
faces.Add(facemodel);
if (faces.Count%5==0)
Console.WriteLine("FaceDetect OpenCL every5 Add faceModel" + facemodel.Width);
break;
}
}
gray.ROI = Rectangle.Empty;
}
}
}
}
catch (Exception errFaceDet)
{
Console.WriteLine("ERROR - faceDetect OpenCL =" + errFaceDet);
}
return faces;
}
/// <summary>
/// finds the chessboard in the image
/// </summary>
/// <param name="src">
/// source image that will contain the chessboard
/// </param>
/// <param name="dim">
/// the dimesions of the chessboard
/// </param>
/// <returns>
/// returns the location of al the chessboard point
/// </returns>
private PointF[] FindPattern(Emgu.CV.Image<Gray, byte> src, Size dim)
{
//string win1 = "Test Window"; //The name of the window
//CvInvoke.cvNamedWindow(win1); //Create the window using the specific name
Image<Bgr, Byte> colr = src.Convert<Bgr, Byte>();
PointF[] checkerBoardPoints = Emgu.CV.CameraCalibration.FindChessboardCorners(src, dim, Emgu.CV.CvEnum.CALIB_CB_TYPE.ADAPTIVE_THRESH | Emgu.CV.CvEnum.CALIB_CB_TYPE.FILTER_QUADS);//CALIB_CB_TYPE.DEFAULT);
//CameraCalibration.CalibrateCamera(
int a = 0;
foreach (PointF checkerBoardPoint in checkerBoardPoints)
{//draw dots just for debuging atm
Rectangle rect = new Rectangle();
rect.X = (int)checkerBoardPoint.X;
rect.Y = (int)checkerBoardPoint.Y;
rect.Width = 2;
rect.Height = 2;
if (a == 0)
{
colr.Draw(rect, new Bgr(Color.Blue), 1);
a++;
}
else
{
colr.Draw(rect, new Bgr(Color.Red), 1);
a++;
}
}
//CvInvoke.cvShowImage(win1, colr); //Show the image
//CvInvoke.cvWaitKey(0);
return checkerBoardPoints;
}
public void ProcessImage(Emgu.CV.Image<Emgu.CV.Structure.Bgr, byte> image)
{
Emgu.CV.Image<Gray, byte> gray = image.Convert<Gray, byte>();
gray._ThresholdBinary(new Gray(_threshold), new Gray(255.0));
gray._Not();
//Emgu.CV.Contour<System.Drawing.Point> c = gray.FindContours(Emgu.CV.CvEnum.CHAIN_APPROX_METHOD.CV_CHAIN_CODE, Emgu.CV.CvEnum.RETR_TYPE.CV_RETR_LIST);
Emgu.CV.Contour<System.Drawing.Point> c = gray.FindContours();
List<Ellipse> ellipses = new List<Ellipse>();
while (c != null)
{
if (c.Count() >= _min_contour_count)
{
System.Drawing.PointF[] mypoints = Array.ConvertAll(
c.ToArray<System.Drawing.Point>(),
value => new System.Drawing.PointF(value.X, value.Y)
);
Ellipse e = Emgu.CV.PointCollection.EllipseLeastSquareFitting(mypoints);
MCvBox2D box = e.MCvBox2D;
box.size.Height *= 0.5f;
box.size.Width *= 0.5f;
Ellipse final_ellipse = new Ellipse(box);
Matrix m = Matrix.Identity(3, 3);
m[0, 0] = Math.Cos(final_ellipse.MCvBox2D.angle);
m[0, 1] = -Math.Sin(final_ellipse.MCvBox2D.angle);
m[0, 2] = final_ellipse.MCvBox2D.center.X;
m[1, 0] = Math.Sin(final_ellipse.MCvBox2D.angle);
m[1, 1] = Math.Cos(final_ellipse.MCvBox2D.angle);
m[1, 2] = final_ellipse.MCvBox2D.center.Y;
Matrix inv = m.Inverse();
double rating = 0.0;
double a = final_ellipse.MCvBox2D.size.Width;
double b = final_ellipse.MCvBox2D.size.Height;
if (a < b)
{
double tmp = a;
a = b;
a = tmp;
}
foreach (System.Drawing.PointF p in mypoints)
{
Vector x = new Vector(new double[] { p.X, p.Y, 1 });
Matrix r = inv.Multiply(x.ToColumnMatrix());
rating += Math.Abs((Math.Pow(r[0, 0] / a, 2) + Math.Pow(r[1, 0] / b, 2)) - 1);
}
Console.WriteLine(rating);
if (rating < 50)
{
ellipses.Add(final_ellipse);
}
}
c = c.HNext;
}
ellipses.Sort(
(a, b) =>
{
double dista = a.MCvBox2D.center.X * a.MCvBox2D.center.X + a.MCvBox2D.center.Y * a.MCvBox2D.center.Y;
double distb = b.MCvBox2D.center.X * b.MCvBox2D.center.X + b.MCvBox2D.center.Y * b.MCvBox2D.center.Y;
return dista.CompareTo(distb);
}
);
Bgr bgr = new Bgr(0, 255, 0);
MCvFont f = new MCvFont(Emgu.CV.CvEnum.FONT.CV_FONT_HERSHEY_PLAIN, 0.8, 0.8);
int count = 1;
foreach (Ellipse e in ellipses)
{
image.Draw(e, bgr, 2);
image.Draw(count.ToString(), ref f, new System.Drawing.Point((int)e.MCvBox2D.center.X, (int)e.MCvBox2D.center.Y), bgr);
count++;
}
}
public SURFEngine(Emgu.CV.Image<Bgr, byte> roi)
: this(roi.Convert<Gray, byte>())
{
}