C#联合halcon实现connection后的物料上色、物料计数、物料框选

一、效果预览

二、实现步骤

三、代码部分

ReadImage

Threshold

HalconWindowShowImage

RectangleDef类库

GenRectangle

 public static void GenRectangle(HObject Region, out HObject ExternalRegion, out RectangleDef rectangleDef, bool isMargin, HWindow hWindow)
 {
     if (isMargin == true)
     {
         HOperatorSet.SetDraw(hWindow, "margin");
     }
     else
     {
         HOperatorSet.SetDraw(hWindow, "fill");
     }
     rectangleDef = new RectangleDef();
     HOperatorSet.SmallestRectangle2(Region, out rectangleDef._CenterRow, out rectangleDef._CenterCol, out rectangleDef.Angle, out rectangleDef.len1, out rectangleDef.len2);
     HOperatorSet.GenRectangle2(out ExternalRegion, rectangleDef._CenterRow, rectangleDef._CenterCol, rectangleDef.Angle, rectangleDef.len1, rectangleDef.len2);
 }

ShowText

主函数中的调用

 private HObject ho_image;
 private void button_test_Click(object sender, EventArgs e)
 {

     OpenFileDialog openFileDialog = new OpenFileDialog();
     if (openFileDialog.ShowDialog() == DialogResult.OK)
     {
         bool result = Algorithm.ImageHelp.ReadImage(out ho_image, openFileDialog.FileName, hWindowControl1.HalconWindow);
         if (result != true)
         {
             MessageBox.Show("失败");
         }
     }
 }
**********************************************************************************************************************************************************************************HTuple MaxGray;
 HTuple MinGray;
 HObject Region;
 private void button_Threshold_Click(object sender, EventArgs e)
 {
     hWindowControl_Threshold.HalconWindow.ClearWindow();

     //普通阈值分割
     MaxGray = int.Parse(textBox_MaxGray.Text);
     MinGray = int.Parse(textBox_MinGray.Text);
     Algorithm.ImageHelp.Threshold(ho_image, out Region, MinGray, MaxGray);

     //获得图片宽度和高度
     HTuple width, height;
     HOperatorSet.GetImageSize(ho_image, out width, out height);

     //设置显示范围
     HOperatorSet.SetPart(hWindowControl_Threshold.HalconWindow, 0, 0, height - 1, width - 1);

     //显示图片 
     HOperatorSet.DispObj(Region, hWindowControl_Threshold.HalconWindow);

 }
**********************************************************************************************************************************************************************************
 private void button1_Click(object sender, EventArgs e)
 {

     string[] Color = new string[12] { "red", "green", "blue", "cyan", "magenta", "yellow", "coral", "spring green", "orange", "orange red", "pink", "navy" };

     HObject ConnectionRegion;
     HOperatorSet.Connection(Region, out ConnectionRegion);


     HObject RRegion;
     Algorithm.RectangleDef rectangleDef;
     Algorithm.ImageHelp.GenRectangle(ConnectionRegion, out RRegion, out rectangleDef, true, hWindowControl_Threshold.HalconWindow);
     HTuple nums;
     HOperatorSet.CountObj(RRegion, out nums);
     Algorithm.ImageHelp.HalconWindowShowImage(ho_image, RRegion, hWindowControl_Threshold.HalconWindow, Color);
     string str = "齿轮的数量" + nums.ToString();
     Algorithm.ImageHelp.ShowText(str, hWindowControl_Threshold.HalconWindow, 12, 12);
 }

四、参数讲解

第一个参数的读取到的图片--->第二个参数是处理后输出的图片Region，因为Threshold算子中两个参数为灰度值的最大值和最小值，范围0-255，所以要设置两个Int类型的参数来接收

第一个参数的读取到的图片--->第二个参数是处理后输出的图片Region，第三个参数为显示的窗体句柄，第四个参数为connection后的物料单独上色

第一个参数的读取到的Region--->第二个参数是处理后输出的图片ExternalRegion，第三个参数为选用的绘制函数，第四个参数是是否需要填充，第五个参数为显示的窗体句柄

第一个参数是显示的文本内容，第二个参数是显示的窗体句柄，第三第四个参数是在哪个坐标下显示