private void updateButton_Click(object sender, EventArgs e)
{
logic.SunoLogic suno = new logic.SunoLogic();
if (image_path.Text.Equals(""))
{
return;
}
Bitmap tempImage = (Bitmap)Bitmap.FromFile(image_path.Text);
TrajectorySet ts = suno.CalculateTrajectorySet(tempImage, Double.Parse(Hough_relativeIntensityTextBox.Text), Int32.Parse(Susan_differenceTresholdTextBox.Text), Int32.Parse(Susan_geometricalTresholdTextBox.Text), Int32.Parse(Suno_lineScanThresholdTextBox.Text), Int32.Parse(Suno_lineScanRadialTextBox.Text), Int32.Parse(Suno_radialThresholdTextbox.Text), geometricalCheckBox.Checked);
tempImage = suno.renderSunoPreview(ts, Int32.Parse(cornerRadiusTextbox.Text), Int32.Parse(lineWidthTextbox.Text), renderSusanCornerCheckbox.Checked, renderHoughLinesCheckbox.Checked, renderBlackPointsCheckbox.Checked, renderTrajectoryPointsCheckbox.Checked);
previewPictureBox.Image = tempImage;
//populate stats
blackSegmentsLabel.Text = "" + ts.black_segments.Count;
elaborationTimeLabel.Text = "" + ((ts.elaboration_end_time.Ticks - ts.elaboration_start_time.Ticks) / 10000000) + " s";
trajectoryPointsLabel.Text = "" + ts.trajectory_points.Count;
}
public TrajectorySet CalculateDiscontinuityPoints(TrajectorySet ts, int lineScanThreshold, int lineScanRadius, int radialThreshold, Boolean geometrical)
{
//foreach hough line
foreach (HoughLine line in ts.lines)
{
int r = line.Radius;
double t = line.Theta;
// check if line is in lower part of the image
if (r < 0)
{
t += 180;
r = -r;
}
// convert degrees to radians
t = (t / 180) * Math.PI;
// get image centers (all coordinate are measured relative
// to center)
int w2 = ts.image.Width / 2;
int h2 = ts.image.Height / 2;
double x0 = 0, x1 = 0, y0 = 0, y1 = 0;
if (line.Theta != 0)
{
// none vertical line
x0 = -w2; // most left point
x1 = w2; // most right point
// calculate corresponding y values
y0 = (-Math.Cos(t) * x0 + r) / Math.Sin(t);
y1 = (-Math.Cos(t) * x1 + r) / Math.Sin(t);
}
else
{
// vertical line
x0 = line.Radius;
x1 = line.Radius;
y0 = h2;
y1 = -h2;
}
int X0, Y0, X1, Y1;
X0 = (int)x0 + w2;
Y0 = h2 - (int)y0;
X1 = (int)x1 + w2;
Y1 = h2 - (int)y1;
PlotFunction plot = AddPlotPoint;
Line((int)X0, (int)Y0, (int)X1, (int)Y1, plot);
double R = -((double)Y1 - (double)Y0) / ((double)X1 - (double)X0);
ts.bresenhamsLines.Add(current_line_points);
List <System.Drawing.Point> black_points = new List <System.Drawing.Point>();
int end_segments = 10;
Boolean start_segment = false;
BlackSegment current_segment = new BlackSegment();
int segment_tollerance = 10;
foreach (System.Drawing.Point current in current_line_points)
{
//get pixel neighbours average colour
double average;
if (geometrical)
{
average = GetNeightbourAveragePixelColor(ts.elaborated_image, current, lineScanRadius);
}
else
{
average = GetNeightbourAveragePixelColor(ts.elaborated_image, current, lineScanRadius, R);
}
if (average > lineScanThreshold)
{
if (!start_segment)
{
current_segment.start = current;
start_segment = true;
}
black_points.Add(current);
}
else
{
if (start_segment)
{
segment_tollerance--;
if (segment_tollerance <= 0)
{
current_segment.end = current;
start_segment = false;
ts.black_segments.Add(current_segment);
current_segment = new BlackSegment();
segment_tollerance = 10;
}
}
}
}
current_line_points = new List <System.Drawing.Point>();
ts.black_points = new List <System.Drawing.Point>(black_points);
//foreach segment check the size and get the central pixel
foreach (BlackSegment current in ts.black_segments)
{
if (geometrical)
{
/* Algoritmo basato su punto medio dei segmenti
* restituisce alcuni falsi positivi a causa dell'imprecisione introdotta dal calcolo della media dei punti
* inoltre non restituisce i punti esatti intermedi della discontinuità.*/
int len = SunoLogic.distanceBetween2Points(current.start, current.end);
int mid_len = len / 2;
Boolean start = false;
foreach (System.Drawing.Point current_point in ts.black_points)
{
if (current_point.X == current.start.X && current_point.Y == current.start.Y)
{
start = true;
}
if (start)
{
mid_len--;
if (mid_len <= 0)
{
ts.trajectory_points.Add(current_point);
start = false;
break;
}
}
}
}
else
{
List <System.Drawing.Point> start_neightbour = new List <System.Drawing.Point>();
List <System.Drawing.Point> end_neightbour = new List <System.Drawing.Point>();
foreach (IntPoint current_corner in ts.corners)
{
System.Drawing.Point current_corner_point = new System.Drawing.Point(current_corner.X, current_corner.Y);
//check start points
int distance_from_start = SunoLogic.distanceBetween2Points(current_corner_point, current.start);
if (distance_from_start - radialThreshold <= 0)
{
start_neightbour.Add(current_corner_point);
}
int distance_from_end = SunoLogic.distanceBetween2Points(current_corner_point, current.end);
if (distance_from_end - radialThreshold <= 0)
{
end_neightbour.Add(current_corner_point);
}
}
int ts_x = 0, ts_y = 0, te_x = 0, te_y = 0;
int count = 0;
foreach (System.Drawing.Point current_pount in start_neightbour)
{
//media tra le coordinate X dello start
//media tra le coordinate Y dello start
ts_x += current_pount.X;
ts_y += current_pount.Y;
count++;
}
if (count == 0)
{
ts_x = current.start.X;
ts_y = current.start.Y;
}
else
{
ts_x /= count;
ts_y /= count;
}
count = 0;
foreach (System.Drawing.Point current_pount in end_neightbour)
{
//media tra le coordinate X dell'end
//media tra le coordinate Y dell'end
te_x += current_pount.X;
te_y += current_pount.Y;
count++;
}
if (count == 0)
{
te_x = current.end.X;
te_y = current.end.Y;
}
else
{
te_x /= count;
te_y /= count;
}
//calculate segment lenght
System.Drawing.Point mid = SunoLogic.midPoint(new System.Drawing.Point(ts_x, ts_y), new System.Drawing.Point(te_x, te_y));
//add point
ts.trajectory_points.Add(mid);
}
}
}
return(ts);
}
