WinForm(C#) 人脸修复

public partial class FrmMain : Form
    {
        public FrmMain()
        {
            InitializeComponent();
            this.WindowState = FormWindowState.Maximized;
        }
        string fileFilter = "*.*|*.bmp;*.jpg;*.jpeg;*.tiff;*.tiff;*.png";
        string image_path = "";
        Bitmap originalImage;
        private void pictureBox1_Click(object sender, EventArgs e)
        {
            SelectImage();
        }
        private void SelectImage()
        {
            OpenFileDialog ofd = new OpenFileDialog();
            ofd.Filter = fileFilter;
            if (ofd.ShowDialog() != DialogResult.OK) return;
            if (pictureBox1.Image != null)
                pictureBox1.Image.Dispose();
            image_path = ofd.FileName;
            originalImage = new Bitmap(image_path);
            pictureBox1.Invalidate();
            ofd.Dispose();

            if (target != null)
                target.Dispose();
            target = null;
        }

        int modelSize = 512;
        string model_path;
        SessionOptions options;
        InferenceSession onnx_session;
        Tensor<float> input_tensor;
        List<NamedOnnxValue> input_container;
        private void FrmMain_Load(object sender, EventArgs e)
        {
            toolStripButton3.SelectedIndex = 2;
            rect = new Rectangle((pictureBox1.Width - 514)>>1, (pictureBox1.Height - 514) >> 1, 514, 514);
            // 创建输出会话，用于输出模型读取信息
            options = new SessionOptions();
            options.LogSeverityLevel = OrtLoggingLevel.ORT_LOG