How to Re size Image and save in folder and Image Name and ID in Database ?

My code for Image Insertion is 
   string savepath;
   string filename = Path.GetFileName(FileUpload1.PostedFile.FileName);    savepath = "~/Images/" + filename;     FileUpload1.SaveAs(Server.MapPath(savepath));    SqlCommand cmd = new SqlCommand("Insert into ReImage(ImageName) values('" + filename + "')", con);   con.Open(); cmd.ExecuteNonQuery(); con.Close();