check point

Hawkeye.VisionBuilder.Workflow/Operations/Transformations/DistanceTransformOperation.cs

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+using Hawkeye.VisionBuilder.Workflow.Datatypes;
+using Hawkeye.VisionBuilder.Workflow.Operations.Attributes;
+using OpenCvSharp;
+
+namespace Hawkeye.VisionBuilder.Workflow.Operations.Transformations;
+
+[Category("Transformations")]
+public class DistanceTransformOperation:BaseOperation
+{
+    protected override void InterpretInternal(Context context)
+    {
+        if (!CheckImageExists(context)) return;
+        if(!CheckGrayscale(context))return;
+        
+        Mat res=new Mat(context.ActiveImage.ImageData.Size(),MatType.CV_8UC1);
+        var distance = context.ActiveImage.ImageData.DistanceTransform(DistanceTypes.C, DistanceTransformMasks.Mask3);
+        
+        Cv2.MinMaxLoc(distance, out double minVal, out var maxVal);
+        // clamp the distance transform to 0-255
+        Cv2.Normalize(distance, res, 0, maxVal, NormTypes.MinMax, MatType.CV_8UC1);
+
+
+
+        context.ActiveImage = new HawkeyeImage()
+        {
+            ImageData = res
+        };
+
+        Status = $"Distance transform";
+        Result = true;
+    }
+}