snap shot of individual eyes using c#

MCvAvgComp[][] eyes = gray1.DetectHaarCascade(eye, 1.1, 1, Emgu.CV.CvEnum.HAAR_DETECTION_TYPE.DO_CANNY_PRUNING, new Size(20, 20));
                    gray1.ROI = Rectangle.Empty;

                    foreach (MCvAvgComp eyesnap in eyes[0])
                    {
                        Rectangle eyeRect = eyesnap.rect;
                        eyeRect.Offset(f.rect.X, f.rect.Y);
                        nextFrame.Draw(eyeRect, new Bgr(Color.Green), 2);


                    }