距离变换找圆法和与料盘中心距离相结合统计数量，

AccImage/AccImage.csproj

@@ -64,6 +64,7 @@
   <ItemGroup>
     <Compile Include="ImageUtil.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
+    <Compile Include="SplitItem.cs" />
   </ItemGroup>
   <ItemGroup>
     <Content Include="FodyWeavers.xml" />

AccImage/SplitItem.cs

+using OpenCvSharp;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AccImage
+{
+    public class SplitItem
+    {
+        public bool isEnd = false;
+        public double avgRadius = 0;
+        public int centerX = 0;
+        public int centerY = 0;
+        public double currentMaxRadius = 0;
+        public List<Circle> circles = new List<Circle>();
+
+        /// <summary>
+        /// 一遍结束后调用
+        /// </summary>
+        public void calOneItem(double theFixRadius=-1)
+        {
+            //该半径是否有效
+            bool isValid = false;
+            if (avgRadius == 0)
+            {
+                isValid = true;
+            }
+            else
+            {
+                //与平均半径差值在10%以内，认为OK
+                double diff = avgRadius - currentMaxRadius;
+                if (diff/avgRadius <= 0.2)
+                {
+                    isValid = true;
+                }
+            }
+            if (isValid)
+            {
+                Circle circle = new Circle();
+                if(theFixRadius != -1 && currentMaxRadius > theFixRadius)
+                {
+                    currentMaxRadius = theFixRadius;
+                }
+                circle.radius = currentMaxRadius;
+                circle.x = centerX;
+                circle.y = centerY;
+                circles.Add(circle);
+                currentMaxRadius = 0;
+                centerX = 0;
+                centerY = 0;
+                //平均半径
+                double total = 0;
+                foreach (Circle c in circles)
+                {
+                    total = total + c.radius;
+                }
+                avgRadius = total / circles.Count;
+            }
+            else
+            {
+                isEnd = true;
+            }
+            
+        }
+        
+
+        public List<List<Circle>> groupCircles(double w, double h, Point2d center)
+        {
+            foreach(Circle c in circles)
+            {
+                c.calDistanceToCenter(center);
+            }
+            List<List<Circle>> allGroupCircle = new List<List<Circle>>();
+            List<int> allreadyGroup = new List<int>();
+            while (true)
+            {
+                List<Circle> groupCircle = new List<Circle>();
+                Circle labelCircle = null;
+                for (int i=0;i<circles.Count; i++)
+                {
+                    if (!allreadyGroup.Contains(i))
+                    {
+                        Circle c = circles[i];
+                        if (labelCircle == null)
+                        {
+                            labelCircle = c;
+                            allreadyGroup.Add(i);
+                            groupCircle.Add(c);
+                        }
+                        else
+                        {
+                            //到圆心的距离差小于H
+                            if (Math.Abs(c.distanceToCenter - labelCircle.distanceToCenter) < h)
+                            {
+                                //两圆心之间的距离+直径小于W认为是同一个元器件
+                                if (c.distanceToCircle(labelCircle) < w)
+                                {
+                                    groupCircle.Add(c);
+                                    allreadyGroup.Add(i);
+                                }
+                            }
+                        }
+                    }
+                }
+                allGroupCircle.Add(groupCircle);
+                if (allreadyGroup.Count == circles.Count)
+                {
+                    break;
+                }
+            }
+            return allGroupCircle;
+        }
+
+        /// <summary>
+        /// 该点是否与其他圆内,或与圆的中心距离在半径内
+        /// </summary>
+        /// <param name="px"></param>
+        /// <param name="py"></param>
+        /// <returns></returns>
+        public double minDistanceToCircles(int px, int py, Point2d reelCenter, double oneBlobWidth =-1, double oneBlobRadius = -1)
+        {
+            Point2d point = new Point2d(px, py);
+            double minDistanceToCircle = -1;
+            foreach (Circle c in circles)
+            {
+                Point2d circleCenter = new Point2d(c.x, c.y);
+                double distanceToCircle = point.DistanceTo(circleCenter);
+                if (distanceToCircle <= c.radius)
+                {
+                    return 0;
+                }
+                //当前点到料盘中心与圆心到料盘中心的距离在直径内，忽略
+                //if(oneBlobRadius != -1 && oneBlobWidth != -1)
+                //{
+                //    double distanceToReelCenter = point.DistanceTo(reelCenter);
+                //    double circleCenterToReelCenter = circleCenter.DistanceTo(reelCenter);
+                //    if (Math.Abs(distanceToReelCenter - circleCenterToReelCenter) < oneBlobRadius)
+                //    {
+                //        if (distanceToCircle < oneBlobWidth)
+                //        {
+                //            return 0;
+                //        }
+                //    }
+                //}
+
+                if (minDistanceToCircle == -1 || distanceToCircle < minDistanceToCircle)
+                {
+                    minDistanceToCircle = distanceToCircle - c.radius;
+                }
+            }
+            return minDistanceToCircle;
+        }
+
+    };
+
+    public class Circle
+    {
+        public int x;
+        public int y;
+        public double radius;
+        public double distanceToCenter = 0;
+
+        public double distanceToCircle(Circle c)
+        {
+            double distance = new Point2d(x, y).DistanceTo(new Point2d(c.x, c.y));
+            return distance + radius + c.radius;
+        }
+        public void calDistanceToCenter(Point2d center)
+        {
+            if(center.X > 0 && distanceToCenter <= 0)
+            {
+                distanceToCenter = center.DistanceTo(new Point2d(x, y));
+            }
+        }
+    }
+}

Demo/MainForm.cs

@@ -69,7 +69,16 @@ namespace Acc.Demo
             {
                 theshValue = int.Parse(textBoxThesh.Text);
             }
-            Image result = ImageUtil.Threshhold(orginalImage, theshValue, false);
+            Image result;
+            result = ImageUtil.Threshhold(orginalImage, theshValue);
+            //if (theshValue == -1)
+            //{
+            //    result = ImageUtil.Threshhold(imageBox.Image, theshValue);
+            //}
+            //else
+            //{
+            //    result = ImageUtil.DistanceTransform(imageBox.Image);
+            //}
             imageBox.Image = result;
         }
         
@@ -105,26 +114,12 @@ namespace Acc.Demo
         private void Count()
         {
             ClearStatusBar();
-            int theshValue = -1;
-            if (!checkBoxAutoThresh.Checked)
-            {
-                theshValue = int.Parse(textBoxThesh.Text);
-            }
             Task.Factory.StartNew(delegate {
-                //Image image = ImageUtil.FindCircle(orginalImage, theshValue, inv);
-
-                //imageBox.Image = image;
-
                 Stopwatch sw = new Stopwatch();
                 sw.Start();
                 int itemFeature = int.Parse(textBoxFeature.Text);
                 Image image = orginalImage;
-                if (!ImageUtil.selectB)
-                {
-                    itemFeature = ImageUtil.GetItemFeatureAuto(image, markX, markY, theshValue);
-                }
-                ImageUtil.selectB = false;
-                int count = ImageUtil.CountItems(ref image, itemFeature, theshValue);
+                int count = ImageUtil.CountItems(ref image, itemFeature);
                 sw.Stop();
                 labelTime.Text = "耗时：" + sw.ElapsedMilliseconds + " ms";
                 labelCount.Text = "数量：" + count;
@@ -152,14 +147,23 @@ namespace Acc.Demo
         private void 元件特征ToolStripMenuItem_Click(object sender, EventArgs e)
         {
             ClearStatusBar();
-            int theshValue = -1;
-            if (!checkBoxAutoThresh.Checked)
-            {
-                theshValue = int.Parse(textBoxThesh.Text);
-            }
-            ImageUtil.selectB = true;
-            Image image = ImageUtil.Mark(orginalImage, markX, markY, theshValue);
+            Image image = orginalImage;
+            int feature = ImageUtil.GetFeature(ref image, markX, markY);
+            textBoxFeature.Text = feature.ToString();
             imageBox.Image = image;
+
+            //int theshValue = -1;
+            //if (!checkBoxAutoThresh.Checked)
+            //{
+            //    theshValue = int.Parse(textBoxThesh.Text);
+            //}
+            //Stopwatch sw = new Stopwatch();
+            //sw.Start();
+            //Image image = ImageUtil.Mark(orginalImage, markX, markY, theshValue);
+
+            //imageBox.Image = image;
+            //sw.Stop();
+            //Console.WriteLine("总耗时：" + sw.ElapsedMilliseconds + " ms");
         }
 
         private void 保存当前图片ToolStripMenuItem_Click(object sender, EventArgs e)

Demo/MainForm.designer.cs

@@ -83,7 +83,7 @@
             // 
             this.元件特征ToolStripMenuItem.Name = "元件特征ToolStripMenuItem";
             this.元件特征ToolStripMenuItem.Size = new System.Drawing.Size(180, 22);
-            this.元件特征ToolStripMenuItem.Text = "标记记数";
+            this.元件特征ToolStripMenuItem.Text = "元件特征";
             this.元件特征ToolStripMenuItem.Click += new System.EventHandler(this.元件特征ToolStripMenuItem_Click);
             // 
             // 计数ToolStripMenuItem