我将位图图片转换为字节数组和字符串。如何再次将此字符串转换为该位图图片？

Question

 public byte[] PictureByteArray
        {
            get
            {
                //get a TypeConverter object for converting Bitmap to bytes
                TypeConverter converter = TypeDescriptor.GetConverter(typeof(Bitmap));
                byte[] byteArr = (byte[])converter.ConvertTo(source, typeof(byte[]));
                return byteArr;
            }
            set
            {
                source = new Bitmap(new MemoryStream(value));
            }
        }


  System.Text.UTF8Encoding enc = new System.Text.UTF8Encoding();
            s = enc.GetString(bytes);

Answer 1

I usually use these two methods for converting an image to a byte array, and back again, for example when transferring an image to a web service, and retrieving it back again:

public static byte[] ImageToByteArray(System.Drawing.Image imageIn) {
  MemoryStream ms = new MemoryStream();
  Bitmap image = new Bitmap(imageIn);
  image.Save(ms, System.Drawing.Imaging.ImageFormat.Png);
  return ms.ToArray();
}

public static Image ByteArrayToImage(byte[] byteArray) {
  MemoryStream ms = new MemoryStream(byteArray);
  Image returnImage = Image.FromStream(ms);
  return returnImage;
}