Пример #1
0
        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;
        }
Пример #2
0
        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);
        }