C#でbyte[]配列をImageに変換する問題を教えてください.

 C# ， 320X240,16 ， 153600 ， g[] ， 
                byte[] g = new byte[153600];
                    for (int i = 0; i != g.Length; i++)
                    {
                        g[i] = Convert.ToByte(sp.ReadByte()) ;
                    }

 byte[] Image：
public Image ByteArrayToImage(byte[] b)
        {
            MemoryStream ms = new MemoryStream(b);
            Image img = Image.FromStream(ms);
            return img;
        }
 ， ，  Image img = Image.FromStream(ms); “ ”， ？

Image ， 。
FromStream jpg,bmp ， rgb 
 Image Bitmap，
byte[] rgb = new byte[153600];// RGB 
Bitmap img = new Bitmap(320, 240, PixelFormat.Format24bppRgb);
// 
BitmapData data=img.LockBits(
    new Rectangle(0,0,img.Width,img.Height),   
    ImageLockMode.WriteOnly, 
    PixelFormat.Format24bppRgb);
// 
System.Runtime.InteropServices.Marshal.Copy(rgb, 0, data.Scan0, rgb.Length);
img.UnlockBits(data);// 
g.DrawImage(img);// Graphics 

変換元:http://zhidao.baidu.com/link?url=LNDGTpC7CdagtfU7u1OdE_9MxBIWBXdG_AodVvakdOvXe1Y7B-_EnXgVTIVAQ7lA8KPwupCKRmNakOjyRvhHga 
static GCHandle handle; static int scan; static Bitmap pBuffer = null; handle = GCHandle.Alloc(rgbArray, GCHandleType.Pinned) scan = (int)handle.AddrOfPinnedObject(); scan += (height - 1) * stride; pBuffer = new Bitmap(width, height, -stride, System.Drawing.Imaging.PixelFormat.Format24bppRgb, (IntPtr)scan); PictureBox.Image = pBuffer; handle.Free();
変換元:http://tieba.baidu.com/p/2123187152