Inserting and Retrieving images from mysql database

private static byte[] ImageToByteMenthod(Image img)
{
   byte[] imageb={};
   try
   {
     MemoryStream imgStream = new MemoryStream();
     img.Save(imgStream,ImageFormat.Bmp); //Gif,Jpeg
     imageb=imgStream.ToArry();
   }
   catch
   {
     //To do
   }
   return imageb;
}

private static Image ByteToImage(byte[] data)
{
   MemoryStream ms = new MemoryStream(data);
   Image img = Image.FromStream(ms);

   return img;
}

private void Demo()
{
   Bitmap bitmap = new Bitmap(this.pictureBox1.Image);
   //TO DO
   
   ModelLayer.Product product = new ModelLayer.Product();
   //...
   product.photo = ImageToByteMenthod(bitmap);


  // Insert into DB...
   
}