Accord.Imaging.HarrisCornersDetector.ProcessImage C# (CSharp) Method

        public List<IntPoint> ProcessImage(Bitmap image)
        {
            // check image format
            if (
                (image.PixelFormat != PixelFormat.Format8bppIndexed) &&
                (image.PixelFormat != PixelFormat.Format24bppRgb) &&
                (image.PixelFormat != PixelFormat.Format32bppRgb) &&
                (image.PixelFormat != PixelFormat.Format32bppArgb)
                )
            {
                throw new UnsupportedImageFormatException("Unsupported pixel format of the source");
            }

            // lock source image
            BitmapData imageData = image.LockBits(
                new Rectangle(0, 0, image.Width, image.Height),
                ImageLockMode.ReadOnly, image.PixelFormat);

            List<IntPoint> corners;

            try
            {
                // process the image
                corners = ProcessImage(new UnmanagedImage(imageData));
            }
            finally
            {
                // unlock image
                image.UnlockBits(imageData);
            }

            return corners;
        }

        private void BtnHarris_OnClick(object sender, RoutedEventArgs e)
        {
            // Step 1: Detect feature points using Harris Corners Detector
            HarrisCornersDetector harris = new HarrisCornersDetector(0.04f, 1000f);
            harrisPoints1 = harris.ProcessImage(img1).ToArray();
            harrisPoints2 = harris.ProcessImage(img2).ToArray();

            // Show the marked points in the original images
            Bitmap img1mark = new PointsMarker(harrisPoints1).Apply(img1);
            Bitmap img2mark = new PointsMarker(harrisPoints2).Apply(img2);

            // Concatenate the two images together in a single image (just to show on screen)
            Concatenate concatenate = new Concatenate(img1mark);
            PictureBox.Source = concatenate.Apply(img2mark);
        }