check point

Hawkeye.VisionBuilder.Workflow/Operations/Basic/SkeletonOperation.cs

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+using Hawkeye.VisionBuilder.Workflow.Datatypes;
+using Hawkeye.VisionBuilder.Workflow.Operations.Attributes;
+using OpenCvSharp;
+
+namespace Hawkeye.VisionBuilder.Workflow.Operations.Basic;
+
+[Category("Basic")]
+public class SkeletonOperation:BaseOperation
+{
+    protected override void InterpretInternal(Context context)
+    {
+        if (!CheckImageExists(context)) return;
+        if(!CheckGrayscale(context)) return;
+
+
+        var skeleton = new Mat(context.ActiveImage.ImageData.Size(), MatType.CV_8UC1, 0);
+        var temp = context.ActiveImage.ImageData.Clone();
+        var element = Cv2.GetStructuringElement(MorphShapes.Cross, new OpenCvSharp.Size(3, 3));
+        var image = context.ActiveImage.ImageData.Clone();
+
+        do
+        {
+            var eroded = image.Erode(element);
+            
+            temp =eroded.Dilate(element);
+            
+            Cv2.Subtract(image,temp, temp);
+            Cv2.BitwiseOr(skeleton, temp, skeleton);
+            
+            eroded.CopyTo(image);
+        } while (Cv2.CountNonZero(image) != 0);
+
+        context.ActiveImage = new HawkeyeImage()
+        {
+            ImageData = skeleton
+        };
+
+        Result = true;
+    }   
+}