public CvContours GetNearPointContour(Point pt, CenterDrawMode centerMode)
{
CvContours resultContours = new CvContours();
int nearId = 0;
double minLen = double.MaxValue;
for (int nId = 0; nId < m_contours.Count; nId++)
{
Point centerPoint = m_contours[nId].BoundingCenter;
switch (centerMode)
{
case CenterDrawMode.PixelWeightCenter:
centerPoint = m_contours[nId].WeightCenter;
break;
case CenterDrawMode.HistogramCenter:
centerPoint = m_contours[nId].HistogramCenter;
break;
}
double len = (centerPoint.X - pt.X) * (centerPoint.X - pt.X) +
(centerPoint.Y - pt.Y) * (centerPoint.Y - pt.Y);
if (len < minLen)
{
minLen = len;
nearId = nId;
}
}
resultContours.m_contours.Add(m_contours[nearId].Clone());
return(resultContours);
}
public CvContours GetAroundContours(CenterDrawMode centerMode, int histogramScale = 1, double radiusScale = 1, MovingPredictType movingType = MovingPredictType.None, int movingRange = 1)
{
CvContours resultContour = new CvContours();
foreach (var contour in m_contours)
{
resultContour.m_contours.Add(contour.ToAraundContour(centerMode, histogramScale, radiusScale, movingType, movingRange));
}
return(resultContour);
}
public CvContours GetInsideRectArea(Rectangle rect)
{
CvContours resultContours = new CvContours();
foreach (var contour in m_contours)
{
if (contour.IsInsideRect(rect))
{
resultContours.m_contours.Add(contour.Clone());
}
}
return(resultContours);
}
/// <summary>
/// Сдвигает контуры
/// </summary>
/// <param name="shiftX"></param>
/// <param name="shiftY"></param>
/// <param name="width">Если не -1 будет введино ограничение на макс ширену</param>
/// <param name="height">Если не -1 будет введино ограничение на макс высоту</param>
/// <returns></returns>
public CvContours Shift(int shiftX, int shiftY, int width = -1, int height = -1)
{
CvContours resultContour = new CvContours();
foreach (var contour in m_contours)
{
var shiftCntr = contour.Clone();
shiftCntr.Shift(shiftX, shiftY, width, height);
resultContour.m_contours.Add(shiftCntr);
}
return(resultContour);
}
public CvContours GetPerimeterInRange(double minVal, double maxVal)
{
CvContours resultContours = new CvContours();
foreach (var contour in m_contours)
{
if ((contour.Perimeter >= minVal) && (contour.Perimeter <= maxVal))
{
resultContours.m_contours.Add(contour.Clone());
}
}
return(resultContours);
}
public CvContours GetAreaInRange(double minVal, double maxVal)
{
CvContours resultContour = new CvContours();
foreach (var contour in m_contours)
{
if ((contour.Area >= minVal) && (contour.Area <= maxVal))
{
resultContour.m_contours.Add(contour.Clone());
}
}
return(resultContour);
}
public CvContours GetBoundingRectInRange(int minWidth, int maxWidth, int minHeight, int maxHeight)
{
CvContours resultContours = new CvContours();
foreach (var contour in m_contours)
{
if ((contour.BoundingRect.Width >= minWidth) && (contour.BoundingRect.Width <= maxWidth) &&
(contour.BoundingRect.Height >= minHeight) && (contour.BoundingRect.Height <= maxHeight))
{
resultContours.m_contours.Add(contour.Clone());
}
}
return(resultContours);
}
public CvContours GetMaxAreaContour()
{
CvContours resultContours = new CvContours();
int maxAreaId = 0;
if (m_contours.Count == 0)
{
return(resultContours);
}
for (int nId = 0; nId < m_contours.Count; nId++)
{
if (m_contours[maxAreaId].Area < m_contours[nId].Area)
{
maxAreaId = nId;
}
}
resultContours.m_contours.Add(m_contours[maxAreaId].Clone());
return(resultContours);
}
// По идее ещё нужен алгоритм кластеризации
//public CvContours[] GetClasters()
/// <summary>
/// Сливает все конутра коллекции во внешний контур с единым центром
/// </summary>
/// <param name="centerMode"></param>
/// <param name="histogramScale"></param>
/// <param name="radiusScale"></param>
/// <returns></returns>
public CvContours GetConcatenateAroundContour(CenterDrawMode centerMode = CenterDrawMode.BoundingRectCenter, int histogramScale = 1, double radiusScale = 1)
{
CvContours resultContour = new CvContours();
if (m_contours.Count == 0)
{
return(resultContour);
}
int totalPoints = 0;
foreach (var contour in m_contours)
{
totalPoints += contour.PointsCnt;
}
if (totalPoints == 0)
{
return(resultContour);
}
double xx = 0;
double yy = 0;
int shift = 0;
Point[] points = new Point[totalPoints];
foreach (var contour in m_contours)
{
contour.CopyPointsTo(points, shift);
shift += contour.PointsCnt;
switch (centerMode)
{
case CenterDrawMode.BoundingRectCenter:
xx += contour.BoundingCenter.X;
yy += contour.BoundingCenter.Y;
break;
case CenterDrawMode.PixelWeightCenter:
xx += contour.WeightCenter.X;
yy += contour.WeightCenter.Y;
break;
case CenterDrawMode.HistogramCenter:
contour.UpdateXYHistogram();
xx += contour.HistogramCenter.X;
yy += contour.HistogramCenter.Y;
break;
}
}
Point commonCenterPoint = new Point((int)(xx / m_contours.Count), (int)(yy / m_contours.Count));
var aroundPoints = CvContourInfo.AraundPoints(commonCenterPoint, points, histogramScale, radiusScale);
CvContourInfo contourInfo = new CvContourInfo(0, -1, aroundPoints);
resultContour.m_contours.Add(contourInfo);
return(resultContour);
}