private void searchOverImages()
{
if (chosenshapes.Count == 0)
{
return;
}
//reset tracked shapes to only include starting shapes
trackedshapes.Clear();
trackedshapes.AddRange(chosenshapes);
int index = listBox1.SelectedIndex;
for (int i = 0; i < listBox1.Items.Count; i++)
{
for (int j = 0; j < trackedshapes.Count; j++)
{
if (trackedshapes.ElementAt(j).imIndex == i - 1)
{
List <ShapeColorObject> templist = new List <ShapeColorObject>();
templist = findSimilarShapeinPicture(trackedshapes.ElementAt(j), LoadedImages["Image:" + i], i);
if (templist.Count != 0)
{
ShapeColorObject tempshape = findClosest(templist, trackedshapes.ElementAt(j));
//ShapeColorObject tempshape = templist.ElementAt(0);
tempshape.previousPosition = trackedshapes.ElementAt(j).pos;
tempshape.prev = trackedshapes.ElementAt(j);
tempshape.imIndex = i;
tempshape.objIndex = tempshape.prev.objIndex;
tempshape.type = tempshape.prev.type;
trackedshapes.Add(tempshape);
}
}
}
}
for (int i = index; i < listBox1.Items.Count; i++)
{
Image <Hsv, byte> tempimage = LoadedImages["Image:" + i].Copy();
for (int j = 0; j < trackedshapes.Count; j++)
{
if (trackedshapes.ElementAt(j).imIndex == i)
{
trackedshapes.ElementAt(j).drawOnImg(ref tempimage);
tempimage.Draw(new Cross2DF(trackedshapes.ElementAt(j).predictedPos(), 5, 5), new Hsv(29, 170, 255), 3);
}
}
workImages["Image:" + i] = tempimage;
}
}
/// <summary>
/// Finds shapes similar to template in the given image. Similarity calculated by ShapeColorObject.compare method
/// </summary>
/// <param name="template"></param>
/// <param name="image"></param>
/// <returns></returns>
private List <ShapeColorObject> findSimilarShapeinPicture(ShapeColorObject template, Image <Hsv, byte> image, int index)
{
Image <Gray, Byte> threshhImage = thresholdHSVtoGray(image, template.getColor());
List <ShapeColorObject> samecoloredshapes = findShapesinGrayImg(threshhImage, image, index);
List <ShapeColorObject> similar = new List <ShapeColorObject>();
for (int i = 0; i < samecoloredshapes.Count; i++)
{
//only adds found object if similar to template and not yet tracked
if (template.compare(samecoloredshapes.ElementAt(i), 5, 30) && !trackedshapes.Contains(samecoloredshapes.ElementAt(i)))
{
similar.Add(samecoloredshapes.ElementAt(i));
}
}
return(similar);
}
private ShapeColorObject findClosest(List <ShapeColorObject> list, ShapeColorObject template)
{
if (list.Count == 1)
{
return(list.ElementAt(0));
}
else
{
Point predicted = template.predictedPos();
//--Find closest shape---------
ShapeColorObject temp = null;
int dist = 0;
foreach (ShapeColorObject shp in list)
{
int d = (shp.pos.X - predicted.X) * (shp.pos.X - predicted.X) + (shp.pos.Y - predicted.Y) * (shp.pos.Y - predicted.Y);
if (temp == null || d < dist)
{
temp = shp;
dist = d;
}
}
return(temp);
}
}
/// <summary>
/// Returns a List of Shapes found in the gray Image and returns Linesegments and color of shape
/// </summary>
/// <param name="inImg">Gray Image</param>
/// <param name="refImg">Color Image for shapecolor</param>
/// <param name="lines">outputarray for lines</param>
/// <param name="colors">outputarry for linecolors</param>
/// <returns></returns>
public List <ShapeColorObject> findShapesinGrayImg(Emgu.CV.Image <Gray, Byte> inImg, Emgu.CV.Image <Hsv, Byte> refImg, int index)
{
if (inImg == null || refImg == null)
{
return(null);
}
List <ShapeColorObject> funkshapes = new List <ShapeColorObject>();
for (Contour <Point> contours = inImg.FindContours(); contours != null; contours = contours.HNext)
{
Contour <Point> current = contours.ApproxPoly(contours.Perimeter * 0.008);
if (current.Area > 200)
{
Point[] points = current.ToArray();
int meanX = 0;
int meanY = 0;
foreach (Point p in points)
{
meanX += p.X;
meanY += p.Y;
}
meanX /= current.Total;
meanY /= current.Total;
ShapeColorObject newObj;
Hsv col;
if (current.Total == 3) //3 vertices
{
col = new Hsv(0, 255, 220);
newObj = new ShapeColorObject(current.Area, ShapeColorObject.shape.tri, refImg[meanY, meanX], meanX, meanY);
newObj.imIndex = index;
funkshapes.Add(newObj);
}
else if (current.Total == 4 && current.Convex) //4 vertices convex
{
col = new Hsv(45, 255, 220);
newObj = new ShapeColorObject(current.Area, ShapeColorObject.shape.rect, refImg[meanY, meanX], meanX, meanY);
newObj.imIndex = index;
funkshapes.Add(newObj);
}
else if (current.Total > 8 && current.Convex) //8+ vertices (circle) convex
{
col = new Hsv(90, 255, 220);
newObj = new ShapeColorObject(current.Area, ShapeColorObject.shape.circle, refImg[meanY, meanX], meanX, meanY);
newObj.imIndex = index;
funkshapes.Add(newObj);
}
else //other shapes
{
col = new Hsv(135, 255, 220);
newObj = new ShapeColorObject(current.Area, ShapeColorObject.shape.undef, refImg[meanY, meanX], meanX, meanY);
newObj.imIndex = index;
funkshapes.Add(newObj);
}
for (int i = 0; i < current.Total - 1; i++)
{
newObj.lineSegments.Add(new LineSegment2D(points[i], points[i + 1])); //add contour line segments to new ShapeColorObject
}
newObj.lineSegments.Add(new LineSegment2D(points[current.Total - 1], points[0]));
double cirumf = 0;
foreach (LineSegment2D s in newObj.lineSegments)
{
cirumf += s.Length;
}
newObj.circularity = (float)(cirumf * cirumf / current.Area);
} //ende if(200>area)
} //ende von for(contours....)
return(funkshapes);
}
private void imageBox1_Click(object sender, EventArgs e)
{
if (im1.Image == null)
{
return;
}
//--Get Mouseposition in Pixelcoordinates--------
var mouseEventArgs = e as MouseEventArgs;
int imWidth, imHeight, boxWidth, boxHeight;
imWidth = im1.Image.Size.Width;
imHeight = im1.Image.Size.Height;
boxWidth = im1.Size.Width;
boxHeight = im1.Size.Height;
Point mouse = TranslateZoomMousePosition(mouseEventArgs.X, mouseEventArgs.Y, imWidth, imHeight, boxWidth, boxHeight);
int x = mouse.X; //(int)(mouseEventArgs.X / im1.ZoomScale);
int y = mouse.Y; //(int)(mouseEventArgs.Y / im1.ZoomScale);
Emgu.CV.Image <Hsv, byte> original = LoadedImages[listBox1.SelectedItem.ToString()];
Hsv pcolor = original[y, x];
if (mouseEventArgs != null)
{
label1.Text = "@(" + x + "; " + y + "): " + pcolor.ToString();
}
Emgu.CV.Image <Gray, byte> threshedimage;
threshedimage = thresholdHSVtoGray(original, pcolor);
imageBox2.Image = threshedimage;
shapes.Clear();
Emgu.CV.Image <Hsv, byte> refImg = (Emgu.CV.Image <Hsv, byte>)im1.Image;
Emgu.CV.Image <Gray, byte> inImg = (Emgu.CV.Image <Gray, byte>)im2.Image;
Emgu.CV.Image <Hsv, byte> outImg = inImg.Convert <Hsv, byte>();
shapes.AddRange(findShapesinGrayImg(inImg, refImg, listBox1.SelectedIndex));
//--Find closest shape---------
ShapeColorObject temp = null;
int dist = 0;
foreach (ShapeColorObject shp in shapes)
{
int d = (shp.pos.X - mouse.X) * (shp.pos.X - mouse.X) + (shp.pos.Y - mouse.Y) * (shp.pos.Y - mouse.Y);
if (ShapeColorObject.compareHues(shp.getColor().Hue, pcolor.Hue, dHue))
{
if (temp == null || d < dist)
{
temp = shp;
temp.imIndex = listBox1.SelectedIndex;
dist = d;
}
}
}
if (temp != null && !chosenshapes.Contains(temp))
{
temp.objIndex = chosenshapes.Count;
chosenshapes.Add(temp);
//trackedshapes.Add(temp);
}
foreach (ShapeColorObject shp in chosenshapes)
{
shp.drawOnImg(ref outImg);
im2.Image = outImg;
im2.Update();
}
label2.Text = "";
foreach (ShapeColorObject shape in chosenshapes)
{
label2.Text += shape.toString() + "\n";
}
}
