Try this code-
SqlConnection cn = new SqlConnection("con string");
cn.Open();
string strQuery = "Select * from EmpImage";
SqlDataAdapter da = new SqlDataAdapter(strQuery, cn);
DataSet ds = new DataSet();
da.Fill(ds);
byte[] b = new byte[0];
b = (Byte[])(ds.Tables[0].Rows[0][1]);
MemoryStream ms = new MemoryStream(b);
pictureBox1.Image = Image.FromStream(ms);
and let me know.