System.Drawing.image 与ImageSource 互转

private BitmapSource bs(Bitmap bt)
        {
            IntPtr ip = bt.GetHbitmap();
            BitmapSource bitmapSource = System.Windows.Interop.Imaging.CreateBitmapSourceFromHBitmap(
                ip, IntPtr.Zero, Int32Rect.Empty,
                System.Windows.Media.Imaging.BitmapSizeOptions.FromEmptyOptions());
            DeleteObject(ip);
            return bitmapSource;
        }

public System.Drawing.Bitmap WpfBitmapSourceToBitmap(BitmapSource s)

        {

            System.Drawing.Bitmap bmp = new System.Drawing.Bitmap(s.PixelWidth, s.PixelHeight, System.Drawing.Imaging.PixelFormat.Format32bppPArgb);

            System.Drawing.Imaging.BitmapData data = bmp.LockBits(new System.Drawing.Rectangle(System.Drawing.Point.Empty, bmp.Size),

 System.Drawing.Imaging.ImageLockMode.WriteOnly, System.Drawing.Imaging.PixelFormat.Format32bppPArgb);

            s.CopyPixels(Int32Rect.Empty, data.Scan0, data.Height * data.Stride, data.Stride);

            bmp.UnlockBits(data);

            return bmp;

        }