Select image from db ms sql c#

Question

Need to select image from  db

 

On my code result is   System.Byte[]

 

I need to display picture

 

Some help?

 

Thank you

string memorandum = "";

            using (SqlConnection openCon = new SqlConnection(con))
            {
                SqlDataReader reader;
                SqlCommand cmd = new SqlCommand("SELECT memorandum from dbo.podaci_o_korisniku");

                cmd.Connection = openCon;
                openCon.Open();
                reader = cmd.ExecuteReader();

                while (reader.Read())
                {
                    byte[] ap = (byte[])podaci_o_korisnikuDataGridView.SelectedRows[0].Cells["memorandum"].Value;
                    memorandum = reader[0].ToString();

                }
                openCon.Close();
            }