image与byte数组的转换

image与byte数组的转换

image to byte[]

   Image photo = new Bitmap(selectPictureFile);
   System.IO.MemoryStream ms = new System.IO.MemoryStream();
   photo.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg);
   byte[] imagedata = ms.GetBuffer();

byte[] to image

  System.IO.MemoryStream ms = New IO.MemoryStream(imagedata)
  Bitmap b = new Bitmap(ms);
  //img = Drawing.Image.FromStream(ms)