Convert Image from Windows Form PictureBox to Byte Array using C# and VB.Net

Hi!

How I can use this savePhoto() function for convert image from picBoxTwo.

Convert Image from PictureBox image before Insert to byte.

namespace WebCaptureCRUD
{
    public partial class mainForm : Form
    {
        VideoCaptureDevice videoCapture;
        FilterInfoCollection filterInfo;
        public webClassCode webClass = new webClassCode();
        public mainForm()
        {
            InitializeComponent();
        }

        private void mainForm_Load(object sender, EventArgs e)
        {
            StartCamera();
        }

        void StartCamera()
        {
            try
            {
                filterInfo = new FilterInfoCollection(FilterCategory.VideoInputDevice);
                videoCapture = new VideoCaptureDevice(filterInfo[0].MonikerString);
                videoCapture.NewFrame += new NewFrameEventHandler(Camera_On);
                videoCapture.Start();
            }
            catch (Exception ex)
            {

                throw ex;
            }
        }

        private void Camera_On(object sender, NewFrameEventArgs eventArgs)
        {
            picBoxOne.Image = (Bitmap)eventArgs.Frame.Clone();
        }

        private void btnCapture_Click(object sender, EventArgs e)
        {
            picBoxTwo.Image = picBoxOne.Image;
        }

        //save image    
        public byte[] savePhoto(System.Drawing.Image image)
        {
            MemoryStream ms = new MemoryStream();
            image.Save(ms, image.RawFormat);
            return ms.GetBuffer();
        }

        private void btnSave_Click(object sender, EventArgs e)
        {
            weblass.insertStudent(txtLName.Text.Trim(), txtName.Text.Trim(), masked.Mask, Convert.ToInt32(cmbClass.SelectedIndex), txtMobile.Text.Trim(), txtAddress.Text.Trim(), savePhoto(picBoxTwo.Image))
        }
    }
}