byte[] ,image, bitmap之间的转换

  /// <summary>       

/// 将图片Image转换成Byte[]       

/// </summary>      

/// <param name="Image">image对象</param>     

/// <param name="imageFormat">后缀名</param>  

 /// <returns></returns>      

 public static byte[] ImageToBytes(Image Image, System.Drawing.Imaging.ImageFormat imageFormat)    

   {

           if (Image == null) { return null; }

           byte[] data = http://www.cnblogs.com/peasana/archive/2012/02/13/null;

           using (MemoryStream ms= new MemoryStream())        

    {

                using (Bitmap Bitmap = new Bitmap(Image))           

     {

                    Bitmap.Save(ms, imageFormat);

                   ms.Position = 0;

                    data = http://www.cnblogs.com/peasana/archive/2012/02/13/new byte[ms.Length];

                   ms.Read(data, 0, Convert.ToInt32(ms.Length));

                   ms.Flush();

               }

           }

           return data;

       }

 

 

            /// <summary>       

     /// byte[]转换成Image        

    /// </summary>         

   /// <param name="byteArrayIn">二进制图片流</param>    

        /// <returns>Image</returns>        

    public static System.Drawing.Image byteArrayToImage(byte[] byteArrayIn)       

     {               

if (byteArrayIn == null)                   

return null;              

  using (System.IO.MemoryStream ms = new System.IO.MemoryStream(byteArrayIn))         

       {                  

  System.Drawing.Image returnImage = System.Drawing.Image.FromStream(ms);   

                 ms.Flush();   

                 return returnImage;             

   }          

  }

 

    //Image转换Bitmap

   1. Bitmap img = new Bitmap(imgSelect.Image);

   2. Bitmap bmp = (Bitmap)pictureBox1.Image;

 

//Bitmap转换成Image

using System.IO;

private static System.Windows.Controls.Image Bitmap2Image(System.Drawing.Bitmap Bi)        {                      MemoryStream ms = new MemoryStream();            Bi.Save(ms, System.Drawing.Imaging.ImageFormat.Png);            BitmapImage bImage = new BitmapImage();            bImage.BeginInit();            bImage.StreamSource = new MemoryStream(ms.ToArray());            bImage.EndInit();            ms.Dispose();            Bi.Dispose();            System.Windows.Controls.Image i = new System.Windows.Controls.Image();            i.Source = bImage;            return i ;        }

 

//byte[] 转换 Bitmap public static Bitmap BytesToBitmap(byte[] Bytes)        {            MemoryStream stream = null;            try            {                stream = new MemoryStream(Bytes);                return new Bitmap((Image)new Bitmap(stream));            }            catch (ArgumentNullException ex)            {                throw ex;            }            catch (ArgumentException ex)            {                throw ex;            }            finally            {                stream.Close();            }        }  //Bitmap转byte[]         public static byte[] BitmapToBytes(Bitmap Bitmap)        {            MemoryStream ms = null;            try            {                ms = new MemoryStream();                Bitmap.Save(ms, Bitmap.RawFormat);                byte[] byteImage = new Byte[ms.Length];                byteImage = ms.ToArray();                return byteImage;            }            catch (ArgumentNullException ex)            {                throw ex;            }            finally            {                ms.Close();            }        }    }