实现效果：

实现途径：

前提：Image File-> System.Drawing.Bitmap->Image<Bgr, byte>

string sFile = GlobalVar.DATAS_PATH + "Samples/Test1.png";

BitmapImage oOriginBitSrc = new BitmapImage(new Uri(sFile));

System.Drawing.Image oImgOrigin = System.Drawing.Image.FromFile(sFile);

System.Drawing.Bitmap oBitmap = new System.Drawing.Bitmap(oImgOrigin);

Image<Bgr, byte> imgSrc = new Image<Bgr, byte>(oBitmap);

oBitmap.Dispose();

第一行效果：原图->中值模糊->高斯模糊->灰度化->Otsu二值化。

 //中值模糊

 Image<Bgr, byte> imgMedian = imgSrc.SmoothMedian(5); //使用5*5的卷积核

 // 高斯模糊

 Image<Bgr, byte> imgGaussian = imgMedian.SmoothGaussian(5);

 // 灰度化

 Image<Gray, byte> imgGray = new Image<Gray, byte>(imgGaussian.Size);

 CvInvoke.CvtColor(imgGaussian, imgGray, ColorConversion.Bgr2Gray);

 // Otsu二值化

 Image<Gray, byte> imgThresholdOtsu = new Image<Gray, byte>(imgGray.Size);

 CvInvoke.Threshold(imgGray, imgThresholdOtsu, 0, 255, ThresholdType.Otsu);

第二行效果：原图->灰度化 ->Otsu二值化 ->中值模糊

// 从原图直接灰度化

Image<Gray, byte> imgOriginGray = new Image<Gray, byte>(imgSrc.Size);

CvInvoke.CvtColor(imgSrc, imgOriginGray, ColorConversion.Bgr2Gray);

// Otsu二值化

Image<Gray, byte> imgOriginGrayThresholdOtsu = new Image<Gray, byte>(imgOriginGray.Size);

CvInvoke.Threshold(imgOriginGray, imgOriginGrayThresholdOtsu, 0, 255, ThresholdType.Otsu);

// 中值模糊

Image<Gray, byte> imgMedian = imgOriginGrayThresholdOtsu.SmoothMedian(5);

AppUtils.ShowGrayImage(this.ImgFun2Result3Zm, imgMedian);

第三行效果：原图 ->灰度化 ->高斯模糊->Otsu二值化

 // 从原图直接灰度化

Image<Gray, byte> imgOriginGray = new Image<Gray, byte>(imgSrc.Size);

CvInvoke.CvtColor(imgSrc, imgOriginGray, ColorConversion.Bgr2Gray);

// 高斯模糊

Image<Gray, byte> imgGaussian = imgOriginGray.SmoothGaussian(5);

// Otsu二值化

Image<Gray, byte> imgOriginGrayThresholdOtsu = new Image<Gray, byte>(imgGaussian.Size);

CvInvoke.Threshold(imgGaussian, imgOriginGrayThresholdOtsu, 0, 255, ThresholdType.Otsu);

其他：转为BitmapSource在WPF的Image中呈现。

        [DllImport("gdi32")]

        private static extern int DeleteObject(IntPtr o);

        /// <summary>

        /// Convert an IImage to a WPF BitmapSource. The result can be used in the Set Property of Image.Source

        /// </summary>

        /// <param name="image">The Emgu CV Image</param>

        /// <returns>The equivalent BitmapSource</returns>

        public static BitmapSource ToBitmapSource(IImage image)

        {

            using (System.Drawing.Bitmap source = image.Bitmap)

            {

                IntPtr ptr = source.GetHbitmap(); //obtain the Hbitmap

                BitmapSource bs = System.Windows.Interop.Imaging.CreateBitmapSourceFromHBitmap(

                    ptr,

                    IntPtr.Zero,

                    Int32Rect.Empty,

                    System.Windows.Media.Imaging.BitmapSizeOptions.FromEmptyOptions());

                DeleteObject(ptr); //release the HBitmap

                return bs;

            }

        }

为了方便查看逐步效果，我提取了以下方法。

 public static void ShowImage(System.Windows.Controls.Image oImage, UMat src)

 {

    oImage.Dispatcher.Invoke(() => {

        oImage.Source = BitmapSourceConvert.ToBitmapSource(src);

     });

}

public static void ShowBgrImage(System.Windows.Controls.Image oImage, Image<Bgr, byte> src)

{

    oImage.Dispatcher.Invoke(() => {

        oImage.Source = BitmapSourceConvert.ToBitmapSource(src);

    });

}

public static void ShowGrayImage(System.Windows.Controls.Image oImage, Image<Gray, byte> src)

{

    oImage.Dispatcher.Invoke(() => {

        oImage.Source = BitmapSourceConvert.ToBitmapSource(src);

    });

}

我参考了链接：点击打开链接 https://www.cnblogs.com/CoverCat/p/5055644.html

                       点击打开链接  http://www.cnblogs.com/CoverCat/p/5043833.html