天天向上

   1: private void CalExteriorAngles()

   2:         {

   3:             LineSegment2D[] lines = CvInvoke.HoughLinesP(

   4:                m_img_thresh_gauss.Canny(100, 64),

   5:                1,                    //Distance resolution in pixel-related units

   6:                Math.PI / 360.0,       //Angle resolution measured in radians.

   7:                90,                    //threshold

   8:                140,                   //min Line width

   9:                120);                   //gap between lines

  10:  

  11:  

  12:             Color[] colorArray = new Color[13] { Color.Red, Color.Green, Color.Blue, Color.Honeydew, Color.AliceBlue, 

  13:                                                  Color.AliceBlue, Color.Pink, Color.Indigo, Color.IndianRed, Color.GreenYellow,

  14:                                                 Color.Lavender, Color.LemonChiffon, Color.LightBlue};

  15:             Random r = new Random();

  16:             int ind;

  17:             //double ramp;

  18:             double theta = -1;

  19:             int cnt = 0;

  20:             m_img_copy = m_img_color.Copy();

  21:             imageBox11.Image = m_img_copy;

  22:             listBox1.Items.Clear();

  23:             LineSegment2D otherline = new LineSegment2D();

  24:             otherline.P1 = new Point(0, 0);

  25:             otherline.P2 = new Point(m_img_gray.Width, 0);

  26:             foreach (LineSegment2D line in lines)

  27:             {

  28:                 ind = r.Next() % 11 +1;

  29:                 theta = line.GetExteriorAngleDegree(otherline);

  30:  

  31:  

  32:                 //this.Text = theta.ToString();

  33:                 //if (theta > 0)

  34:                 {

  35:                     m_img_copy.Draw(line, new Bgr(colorArray[ind]), 12);

  36:                     imageBox11.Image = m_img_copy;

  37:                     cnt++;

  38:                     listBox1.Items.Add(string.Format("#{0} Angle = {1:###.##}",cnt, theta));

  39:                     //imageBox11.Image = m_img_copy;

  40:                     Application.DoEvents();

  41:                     Thread.Sleep(2000);

  42:                     //if (cnt > 0) break;

  43:                 }

  44:  

  45:                 

  46:  

  47:  

  48:             }

  49:             imageBox11.Image = m_img_copy;

  50:            

  51:             //MessageBox.Show("Done");

  52:         }

   1: LineSegment2D[] lines = CvInvoke.HoughLinesP(

   2:    m_img_thresh_gauss.Canny(100, 64),

   3:    1,                    //Distance resolution in pixel-related units

   4:    Math.PI / 360.0,       //Angle resolution measured in radians.

   5:    210,                    //threshold

   6:    260,                   //min Line width

   7:    11);                   //gap between lines