public class DisplayImage : IHttpHandler
    {
        public void ProcessRequest(HttpContext context)
        {
             context.Response.Clear();
             context.Response.ContentType = "image/jpeg";           
              if (context.Request.QueryString["ImgId"] != null)
            {
                int imgId = 0;
                imgId = Convert.ToInt16(context.Request.QueryString["imgId"]);
                MemoryStream memoryStream = new MemoryStream(GetImageFromDB(imgId), false);
                System.Drawing.Image imgFromDataBase = System.Drawing.Image.FromStream(memoryStream);
                imgFromDataBase.Save(context.Response.OutputStream, System.Drawing.Imaging.ImageFormat.Jpeg);            }
        }
        private byte[] GetImageFromDB(int ImgId)
        {
            string strCon   = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;
            SqlDataAdapter SqlAda;
            DataSet ds;
            byte[] btImage  = null;
            using (SqlConnection Sqlcon = new SqlConnection(strCon))
            {
                using (SqlCommand cmd = new SqlCommand())
                {
                    Sqlcon.Open();
                    cmd.Connection = Sqlcon;
                    cmd.CommandType = CommandType.StoredProcedure;
                    cmd.CommandText = "SP_ImageUpload";
                    cmd.Parameters.Add(new SqlParameter("@pvchAction", SqlDbType.VarChar, 50));
                    cmd.Parameters.Add(new SqlParameter("@pvchImageId", SqlDbType.Int));
                    cmd.Parameters["@pvchAction"].Value = "select";
                    cmd.Parameters["@pvchImageId"].Value = ImgId;
                    cmd.Parameters.Add("@pIntErrDescOut", SqlDbType.Int).Direction = ParameterDirection.Output;
                    SqlAda = new SqlDataAdapter(cmd);
                    ds = new DataSet();
                    SqlAda.Fill(ds);
                    btImage = (byte[])ds.Tables[0].Rows[0][3];
               }
            }
            return btImage; 
        }
        public bool IsReusable
        {
            get
            {
                return false;
            }
        }
    }