private void choosePic_Click(object sender, EventArgs e)
        {
            if (this.openFileDialog1.ShowDialog(this) == DialogResult.Cancel)
            {
                return;
            }

            var img = Damany.Util.Extensions.MiscHelper.FromFileBuffered(this.openFileDialog1.FileName);

            this.ipl = OpenCvSharp.IplImage.FromBitmap((Bitmap)img);

            var fs  = new FaceProcessingWrapper.FaceSpecification();
            var suc = _faceComparer.CalcFeature(this.ipl, fs);

            if (!suc)
            {
                MessageBox.Show("人像不满足比对要求,请重新选择人像。",
                                this.Text,
                                MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }

            this.targetPic.Image = img;


            this.targetPic.Invalidate();
            this.compareButton.Enabled = true;
        }
        private void addNewTarget_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
        {
            if (openFileDialog1.ShowDialog(this) == DialogResult.OK)
            {
                _waitForm.Show();
                _waitForm.Caption = "正在计算特征值...";

                var img = OpenCvSharp.IplImage.FromFile(openFileDialog1.FileName);
                var fs  = new FaceProcessingWrapper.FaceSpecification();
                var suc = _faceComparer.CalcFeature(img, fs);
                _waitForm.Hide();
                if (!suc)
                {
                    _messageBoxService.ShowError("人像不满足比对要求,请重新选择人像。");
                    return;
                }

                var target = new TargetPerson(_uow);
                target.EyeBrowShape  = fs.EyebrowShape;
                target.EyebrowRatio  = fs.EyebrowRatio;
                target.FeaturePoints = fs.Features;
                var path = System.IO.Path.Combine(Properties.Settings.Default.OutputPath,
                                                  @"TargetFeature\" + Guid.NewGuid() + ".txt");
                var dir = Path.GetDirectoryName(path);
                if (!Directory.Exists(dir))
                {
                    Directory.CreateDirectory(dir);
                }
                target.FeatureFilePath = path;
                var imgPath = path.Replace(".txt", ".jpg");
                img.SaveImage(imgPath);
                target.ImagePath = imgPath;

                var item = AddGalleryItem(img.ToBitmap());
                item.Tag = target;
                _isDirty = true;
            }
        }