/// <summary>
        /// 对图片做opencv的人脸分析
        /// </summary>
        /// <param name="imgTag"></param>
        public static void OpenCVAnalysis(ImageTag imgTag)
        {
            var imageFile = imgTag.GetTrueImageFile();
            var image     = Cv2.ImRead(imageFile);

            var tps = new List <TagPart>();

            foreach (var face in FaceDetect.OpenCvDetectMultiScale(image))
            {
                var body = AITag.Common.Utils.GetBodyRect(face, (double)(64 - 8) / 128, image.Width, image.Height);

                if (body != Rect.Empty)
                {
                    tps.Add(new TagPart
                    {
                        Face = face,
                        Body = body
                    });
                }
            }

            if (tps.Count == 0)
            {
                imgTag.Status = "opencv_fail";
            }
            else
            {
                imgTag.OpenCvParts = tps;
                imgTag.Status      = "opencv_finish";
            }
        }