// Constructor
public OpticalFlow(String filename, int label)
{
//fs = new StreamWriter("C:\\Users\\Antivirus\\Desktop\\of\\FeaturesFile.csv", append: true);
/*fs.WriteLine("velx_r1," + "vely_r1," + "degrees_r1," + "distance_r1,"
+ "velx_r2," + "vely_r2," + "degrees_r2," + "distance_r2,"
+ "velx_r3," + "vely_r3," + "degrees_r3," + "distance_r3,"
+ "velx_r4," + "vely_r4," + "degrees_r4," + "distance_r4,"
+ "velx_r5," + "vely_r5," + "degrees_r5," + "distance_r5,"
+ "velx_r6," + "vely_r6," + "degrees_r6," + "distance_r6,"
+ "velx_r7," + "vely_r7," + "degrees_r7," + "distance_r7,"
+ "velx_r8," + "vely_r8," + "degrees_r8," + "distance_r8,"
+ "velx_r9," + "vely_r9," + "degrees_r9," + "distance_r9,"
+ "activity");
+ fs.Close();*/
class_label = label;
fileName = filename;
top_left = new Rectangle();
top_middle = new Rectangle();
top_right = new Rectangle();
middle_left = new Rectangle();
middle_middle = new Rectangle();
middle_right = new Rectangle();
bottom_left = new Rectangle();
bottom_middle = new Rectangle();
bottom_right = new Rectangle();
top_left_lines = new List <FeatureVectorOpticalFlow>();
top_middle_lines = new List <FeatureVectorOpticalFlow>();
top_right_lines = new List <FeatureVectorOpticalFlow>();
middle_left_lines = new List <FeatureVectorOpticalFlow>();
middle_middle_lines = new List <FeatureVectorOpticalFlow>();
middle_right_lines = new List <FeatureVectorOpticalFlow>();
bottom_left_lines = new List <FeatureVectorOpticalFlow>();
bottom_middle_lines = new List <FeatureVectorOpticalFlow>();
bottom_right_lines = new List <FeatureVectorOpticalFlow>();
top_left_line = new FeatureVectorOpticalFlow();
top_middle_line = new FeatureVectorOpticalFlow();
top_right_line = new FeatureVectorOpticalFlow();
middle_left_line = new FeatureVectorOpticalFlow();
middle_middle_line = new FeatureVectorOpticalFlow();
middle_right_line = new FeatureVectorOpticalFlow();
bottom_left_line = new FeatureVectorOpticalFlow();
bottom_middle_line = new FeatureVectorOpticalFlow();
bottom_right_line = new FeatureVectorOpticalFlow();
all_lines = new List <FeatureVectorOpticalFlow>();
}
// get the line with maximum length
private FeatureVectorOpticalFlow getBigLine(List <FeatureVectorOpticalFlow> lines)
{
if (lines.Count == 0)
{
return(new FeatureVectorOpticalFlow());
}
FeatureVectorOpticalFlow bigLine = new FeatureVectorOpticalFlow();
bigLine = lines[0];
foreach (FeatureVectorOpticalFlow line in lines)
{
if (bigLine.line.Length < line.line.Length)
{
bigLine = line;
}
}
return(bigLine);
}
// Calculate Sections, Assign Lines for Each Section and Draw on Image
public Image <Hsv, byte> CalculateSections(Image <Hsv, byte> frameImg, int frameNumber = 0)
{
// resultant Image
Image <Hsv, byte> img = new Image <Hsv, byte>(frameImg.Width, frameImg.Height);
int w = frameImg.Width; // total width of image
int h = frameImg.Height; // total height of image
int section_width = w / 3; // width for one section
int section_height = h / 3; // height for one section
// width and height of all rectangles will be same
top_left.Width = top_middle.Width = top_right.Width = section_width;
middle_left.Width = middle_middle.Width = middle_right.Width = section_width;
bottom_left.Width = bottom_middle.Width = bottom_right.Width = section_width;
top_left.Height = top_middle.Height = top_right.Height = section_height;
middle_left.Height = middle_middle.Height = middle_right.Height = section_height;
bottom_left.Height = bottom_middle.Height = bottom_right.Height = section_height;
// only starting point of each section will be different
top_left.Y = top_middle.Y = top_right.Y = 0; // same Y position for first row sections
middle_left.Y = middle_middle.Y = middle_right.Y = section_height;
bottom_left.Y = bottom_middle.Y = bottom_right.Y = 2 * section_height;
top_left.X = middle_left.X = bottom_left.X = 0;
top_middle.X = middle_middle.X = bottom_middle.X = section_width;
top_right.X = middle_right.X = bottom_right.X = 2 * section_width;
// drawing the rectangles on the Image
CvInvoke.Rectangle(img, top_left, new Bgr(Color.Green).MCvScalar, 2);
CvInvoke.Rectangle(img, top_middle, new Bgr(Color.Blue).MCvScalar, 2);
CvInvoke.Rectangle(img, top_right, new Bgr(Color.Green).MCvScalar, 2);
CvInvoke.Rectangle(img, middle_left, new Bgr(Color.Green).MCvScalar, 2);
CvInvoke.Rectangle(img, middle_middle, new Bgr(Color.Blue).MCvScalar, 2);
CvInvoke.Rectangle(img, middle_right, new Bgr(Color.Green).MCvScalar, 2);
CvInvoke.Rectangle(img, bottom_left, new Bgr(Color.Green).MCvScalar, 2);
CvInvoke.Rectangle(img, bottom_middle, new Bgr(Color.Blue).MCvScalar, 2);
CvInvoke.Rectangle(img, bottom_right, new Bgr(Color.Green).MCvScalar, 2);
// assigning the lines to their respective section list
foreach (FeatureVectorOpticalFlow fv in all_lines)
{
// first row sections
if (fv.line.P1.X < section_width &&
fv.line.P2.X < section_width &&
fv.line.P1.Y < section_height &&
fv.line.P2.Y < section_height)
{
top_left_lines.Add(fv);
}
else if (fv.line.P1.X < 2 * section_width &&
fv.line.P2.X < 2 * section_width &&
fv.line.P1.Y < section_height && fv.line.P2.Y < section_height)
{
top_middle_lines.Add(fv);
}
else if (fv.line.P1.X < w && fv.line.P2.X < w &&
fv.line.P1.Y < section_height &&
fv.line.P2.Y < section_height)
{
top_right_lines.Add(fv);
}
// middle row sections
else if (fv.line.P1.X < section_width &&
fv.line.P2.X < section_width &&
fv.line.P1.Y < 2 * section_height &&
fv.line.P2.Y < 2 * section_height)
{
middle_left_lines.Add(fv);
}
else if (fv.line.P1.X < 2 * section_width &&
fv.line.P2.X < 2 * section_width &&
fv.line.P1.Y < 2 * section_height &&
fv.line.P2.Y < 2 * section_height)
{
middle_middle_lines.Add(fv);
}
else if (fv.line.P1.X < w && fv.line.P2.X < w &&
fv.line.P1.Y < 2 * section_height &&
fv.line.P2.Y < 2 * section_height)
{
middle_right_lines.Add(fv);
}
// third row sections
else if (fv.line.P1.X < section_width &&
fv.line.P2.X < section_width &&
fv.line.P1.Y < h && fv.line.P2.Y < h)
{
bottom_left_lines.Add(fv);
}
else if (fv.line.P1.X < 2 * section_width &&
fv.line.P2.X < 2 * section_width &&
fv.line.P1.Y < h && fv.line.P2.Y < h)
{
bottom_middle_lines.Add(fv);
}
else if (fv.line.P1.X < w &&
fv.line.P2.X < w &&
fv.line.P1.Y < h &&
fv.line.P2.Y < h)
{
bottom_right_lines.Add(fv);
}
}
// get line with maximum Length from each section list of lines
// And Draw the line on the image
if (top_left_lines.Count > 0)
{
top_left_line = getBigLine(top_left_lines);
CvInvoke.ArrowedLine(img, top_left_line.line.P1, top_left_line.line.P2, new Bgr(Color.White).MCvScalar, 1);
}
if (top_middle_lines.Count > 0)
{
top_middle_line = getBigLine(top_middle_lines);
CvInvoke.ArrowedLine(img, top_middle_line.line.P1, top_middle_line.line.P2, new Bgr(Color.White).MCvScalar, 1);
}
if (top_right_lines.Count > 0)
{
top_right_line = getBigLine(top_right_lines);
CvInvoke.ArrowedLine(img, top_right_line.line.P1, top_right_line.line.P2, new Bgr(Color.White).MCvScalar, 1);
}
if (middle_left_lines.Count > 0)
{
middle_left_line = getBigLine(middle_left_lines);
CvInvoke.ArrowedLine(img, middle_left_line.line.P1, middle_left_line.line.P2, new Bgr(Color.White).MCvScalar, 1);
}
if (middle_middle_lines.Count > 0)
{
middle_middle_line = getBigLine(middle_middle_lines);
CvInvoke.ArrowedLine(img, middle_middle_line.line.P1, middle_middle_line.line.P2, new Bgr(Color.White).MCvScalar, 1);
}
if (middle_right_lines.Count > 0)
{
middle_right_line = getBigLine(middle_right_lines);
CvInvoke.ArrowedLine(img, middle_right_line.line.P1, middle_right_line.line.P2, new Bgr(Color.White).MCvScalar, 1);
}
if (bottom_left_lines.Count > 0)
{
bottom_left_line = getBigLine(bottom_left_lines);
CvInvoke.ArrowedLine(img, bottom_left_line.line.P1, bottom_left_line.line.P2, new Bgr(Color.White).MCvScalar, 1);
}
if (bottom_middle_lines.Count > 0)
{
bottom_middle_line = getBigLine(bottom_middle_lines);
CvInvoke.ArrowedLine(img, bottom_middle_line.line.P1, bottom_middle_line.line.P2, new Bgr(Color.White).MCvScalar, 1);
}
if (bottom_right_lines.Count > 0)
{
bottom_right_line = getBigLine(bottom_right_lines);
CvInvoke.ArrowedLine(img, bottom_right_line.line.P1, bottom_right_line.line.P2, new Bgr(Color.White).MCvScalar, 1);
}
//WriteFeatureToCSV();
//CvInvoke.NamedWindow("Motion Tracking");
// CvInvoke.Imshow("Motion Tracking", img.Resize(200,200,Inter.Cubic));
//CvInvoke.Imwrite("C:\\Users\\Antivirus\\Desktop\\of\\Frames.png",img);
//CvInvoke.Imwrite("C:\\Users\\Antivirus\\Desktop\\of\\opticalflow" + (frameNumber - 1) + "-" + (frameNumber) + ".png", img);
return(img);
}