private MovesDetectionResult DetectMoves(CamService cam)
{
var maxDartContourArc = configService.MaxContourArcValue * 1.5;
var maxDartContourArea = configService.MaxContourAreaValue * 1.5;
var maxDartContourWidth = configService.MaxContourWidthValue * 1.5;
var minDartContourArc = configService.MinContourArcValue;
var minDartContourArea = configService.MinContourAreaValue;
var minDartContourWidth = configService.MinContourWidthValue;
var allContours = new VectorOfVectorOfPoint();
CvInvoke.FindContours(cam.ThrowExtractedRoiFrame,
allContours,
new Mat(),
RetrType.External,
ChainApproxMethod.ChainApproxNone);
if (!detectionEnabled || allContours.Size == 0)
{
return(MovesDetectionResult.Nothing);
}
var contourWithMaxArc = new VectorOfPoint();
var contourWithMaxArea = new VectorOfPoint();
var contourWithMaxWidth = new VectorOfPoint();
var maxArс = 0.0;
var maxArea = 0.0;
var maxWidth = 0.0;
for (var i = 0; i < allContours.Size; i++)
{
var tempContour = allContours[i];
var tempContourArс = CvInvoke.ArcLength(tempContour, true);
if (tempContourArс > maxArс)
{
maxArс = tempContourArс;
contourWithMaxArc = tempContour;
}
var tempContourArea = CvInvoke.ContourArea(tempContour);
if (tempContourArea > maxArea)
{
maxArea = tempContourArea;
contourWithMaxArea = tempContour;
}
var rect = CvInvoke.MinAreaRect(tempContour);
var box = CvInvoke.BoxPoints(rect);
var contourBoxPoint1 = new PointF(box[0].X, (float)cam.roiPosYSlider + box[0].Y);
var contourBoxPoint2 = new PointF(box[1].X, (float)cam.roiPosYSlider + box[1].Y);
var contourBoxPoint4 = new PointF(box[3].X, (float)cam.roiPosYSlider + box[3].Y);
var side1 = MeasureService.FindDistance(contourBoxPoint1, contourBoxPoint2);
var side2 = MeasureService.FindDistance(contourBoxPoint4, contourBoxPoint1);
var tempContourWidth = side1 < side2
? side1
: side2;
if (tempContourWidth > maxWidth)
{
maxWidth = tempContourWidth;
contourWithMaxWidth = tempContour;
}
}
if (workingMode == DetectionServiceWorkingMode.Crossing ||
maxArс >= minDartContourArc &&
maxArс <= maxDartContourArc &&
maxArea >= minDartContourArea &&
maxArea <= maxDartContourArea &&
maxWidth >= minDartContourWidth &&
maxWidth <= maxDartContourWidth &&
contourWithMaxArc.Equals(contourWithMaxArea) &&
contourWithMaxArea.Equals(contourWithMaxWidth) &&
contourWithMaxWidth.Equals(contourWithMaxArc)
)
{
return(MovesDetectionResult.Throw);
}
if (maxArс > maxDartContourArc ||
maxArea > maxDartContourArea ||
maxWidth > maxDartContourWidth)
{
return(MovesDetectionResult.Extraction);
}
return(MovesDetectionResult.Nothing);
}