تبدیل Image به Byte[]

[MH2538]

            FileStream fls;

            pictureBox2.Image.Save("temp.tmp");

            fls = new FileStream("temp.tmp", FileMode.Open, FileAccess.Read);

            byte[] blob = new byte[fls.Length];

            fls.Read(blob, 0, System.Convert.ToInt32(fls.Length));

            fls.Close();