public static void Run(Window window, Mat thresholdingImage)
{
_numberOfFingers = 0;
Mat drawing = Mat.Zeros(thresholdingImage.Size(), MatType.CV_8UC3);
Cv2.FindContours(thresholdingImage, out var contours, out var _, RetrievalModes.Tree, ContourApproximationModes.ApproxSimple);
if (contours.Length > 0)
{
var contoursPoly = new Point[contours.Length][];
for (var i = 0; i < contoursPoly.Length; i++)
{
contoursPoly[i] = new Point[0];
}
DrawContours(contours, contoursPoly, drawing);
_currentClickTime = DateTime.Now;
if (_numberOfFingers == 2 && (_currentClickTime - _previousClickTime).TotalSeconds > 3 && Program.ControlMode)
{
WinApiUtils.LeftMouseClick(_posX, _posY);
_previousClickTime = DateTime.Now;
}
}
drawing.PutText($"Wykryte palce: {_numberOfFingers}, Sterowanie: {(Program.ControlMode ? "TAK" : "NIE")}", new Point(10, 50), HersheyFonts.HersheyPlain, 2, new Scalar(255, 255, 255));
window.ShowImage(drawing);
}
private static void DrawContours(IReadOnlyList <Point[]> contours, IList <Point[]> contoursPoly, Mat drawing)
{
var center = new Point2f[contours.Count];
var radius = new float[contours.Count];
for (var i = 0; i < contours.Count; i++)
{
if (Cv2.ContourArea(contours[i]) >= 5000)
{
contoursPoly[i] = Cv2.ApproxPolyDP(contours[i], 3, true);
Cv2.MinEnclosingCircle(contoursPoly[i], out center[i], out radius[i]);
var tempContour = contours[i];
var hulls = new Point[1][];
var hullsI = new int[1][];
hulls[0] = Cv2.ConvexHull(tempContour);
hullsI[0] = Cv2.ConvexHullIndices(tempContour);
Cv2.DrawContours(drawing, hulls, -1, Scalar.Gold, 2);
if (hullsI[0].Length > 0)
{
var defects = Cv2.ConvexityDefects(tempContour, hullsI[0]);
if (defects.Length > 0)
{
for (var j = 1; j < defects.Length; j++)
{
var startIdx = defects[j][0];
var ptStart = tempContour[startIdx];
var farIdx = defects[j][2];
var ptFar = tempContour[farIdx];
if (GetDistance(ptStart, ptFar) > 1000 && ptStart.Y < center[i].Y && radius[i] >= 70)
{
Cv2.Circle(drawing, ptStart, 10, Scalar.Yellow, 2);
Cv2.Line(drawing, ptStart, ptFar, Scalar.Pink, 2);
_numberOfFingers++;
}
}
if (radius[i] > 50)
{
Cv2.DrawContours(drawing, contoursPoly, i, Scalar.Red);
Cv2.Circle(drawing, center[i], (int)radius[i], Scalar.White, 2);
Cv2.Circle(drawing, center[i], 5, Scalar.Red, 2);
if (Program.ControlMode)
{
_posX = (int)(4 * (center[i].X - 100));
_posY = (int)(4 * (center[i].Y - 100));
WinApiUtils.SetCursorPos(_posX, _posY);
}
}
}
}
}
}
}