PerspectiveTransformSample Add

Author: dotoritos-kim

SamplesCS/Program.cs

@@ -12,48 +12,49 @@ class Program
         static void Main(string[] args)
         {
             ISample sample =
-                //new ArucoSample();
-                //new BgSubtractorMOG();
-                //new BinarizerSample();
-                //new BRISKSample();
-                //new CaffeSample();
-                //new ClaheSample();
-                //new ConnectedComponentsSample();
-                //new DFT();
-                new DrawBestMatchRectangle();
-                //new FaceDetection();
-                //new FaceDetectionDNN();
-                //new FASTSample();
-                //new FlannSample(); 
-                //new FREAKSample();
-                //new HandPose();
-                //new HistSample();
-                //new HOGSample();
-                //new HoughLinesSample();
-                //new KAZESample2();
-                //new KAZESample();
-                //new MatOperations();
-                //new MatToBitmap();
-                //new MDS();
-                //new MSERSample();
-                //new NormalArrayOperations();
-                //new PhotoMethods();
-                //new MergeSplitSample();
-                //new MorphologySample();
-                //new PixelAccess();
-                //new Pose();
-                //new SeamlessClone();
-                //new SiftSurfSample();
-                //new SimpleBlobDetectorSample();
-                //new SolveEquation();
-                //new StarDetectorSample();
-                //new Stitching();
-                //new Subdiv2DSample();
-                //new SuperResolutionSample();
-                //new SVMSample();
-                //new VideoWriterSample();
-                //new VideoCaptureSample();
-                //new WindowGUISample();
+            //new ArucoSample();
+            //new BgSubtractorMOG();
+            //new BinarizerSample();
+            //new BRISKSample();
+            //new CaffeSample();
+            //new ClaheSample();
+            //new ConnectedComponentsSample();
+            //new DFT();
+            //new DrawBestMatchRectangle();
+            //new FaceDetection();
+            //new FaceDetectionDNN();
+            new FASTSample();
+            //new FlannSample(); 
+            //new FREAKSample();
+            //new HandPose();
+            //new HistSample();
+            //new HOGSample();
+            //new HoughLinesSample();
+            //new KAZESample2();
+            //new KAZESample();
+            //new MatOperations();
+            //new MatToBitmap();
+            //new MDS();
+            //new MSERSample();
+            //new NormalArrayOperations();
+            //new PerspectiveTransformSample();
+            //new PhotoMethods();
+            //new MergeSplitSample();
+            //new MorphologySample();
+            //new PixelAccess();
+            //new Pose();
+            //new SeamlessClone();
+            //new SiftSurfSample();
+            //new SimpleBlobDetectorSample();
+            //new SolveEquation();
+            //new StarDetectorSample();
+            //new Stitching();
+            //new Subdiv2DSample();
+            //new SuperResolutionSample();
+            //new SVMSample();
+            //new VideoWriterSample();
+            //new VideoCaptureSample();
+            //new WindowGUISample();
             sample.Run();
         }
     }

SamplesCS/Samples/PerspectiveTransformSample.cs

@@ -0,0 +1,60 @@
+using OpenCvSharp;
+using System;
+using System.Collections.Generic;
+
+namespace SamplesCS.Samples
+{
+    public class PerspectiveTransformSample : ISample
+    {
+        List<Point2f> point2Fs = new List<Point2f>();
+
+        Point2f[] srcPoints = new Point2f[] {
+            new Point2f(0, 0),
+            new Point2f(0, 0),
+            new Point2f(0, 0),
+            new Point2f(0, 0),
+        };
+
+        Point2f[] dstPoints = new Point2f[] {
+            new Point2f(0, 0),
+            new Point2f(0, 480),
+            new Point2f(640, 480),
+            new Point2f(640, 0),
+        };
+
+        Mat OriginalImage;
+
+        //PerspectiveTransform
+        public void Run()
+        {
+            OriginalImage = new Mat("./Resource.png", ImreadModes.AnyColor); // Your Resource
+            using var Window = new Window("result", OriginalImage);
+
+            Cv2.SetMouseCallback(Window.Name, CallbackOpenCVAnnotate);
+            Window.WaitKey();
+        }
+
+        private void CallbackOpenCVAnnotate(MouseEvent e, int x, int y, MouseEvent flags, IntPtr userdata)
+        {
+            if (e == MouseEvent.LButtonDown)
+            {
+                point2Fs.Add(new Point2f(x, y));
+                if (point2Fs.Count == 4)
+                {
+                    srcPoints = new Point2f[]
+                    {
+                        point2Fs[0],
+                        point2Fs[1],
+                        point2Fs[2],
+                        point2Fs[3]
+                    };
+                    using var matrix = Cv2.GetPerspectiveTransform(srcPoints, dstPoints);
+                    using var dst = new Mat(new Size(640, 480), MatType.CV_8UC3);
+                    Cv2.WarpPerspective(OriginalImage, dst, matrix, dst.Size());
+                    using var dsts = new Window("dst", dst);
+                    point2Fs.Clear();
+                }
+            }
+        }
+    }
+}

SamplesCS/SamplesCS.csproj

@@ -127,6 +127,7 @@
     <Compile Include="Samples\FaceDetectionDNN.cs" />
     <Compile Include="Samples\DrawBestMatch.cs" />
     <Compile Include="Samples\HandPose.cs" />
+    <Compile Include="Samples\PerspectiveTransformSample.cs" />
     <Compile Include="Samples\PhotoMethods.cs" />
     <Compile Include="Samples\Pose.cs" />
     <Compile Include="Samples\SeamlessClone.cs" />